Thursday, November 4, 2021

Motion Analysis - Two Handed Operation/Process Chart - Operator Motions Chart

 INDUSTRIAL ENGINEERING is redesign (engineering) of Products, Facilities and Processes for Productivity increase.

Productivity Management Imperative for USA - McKinsey. Returning US productivity to its long-term trend of 2.2 percent annual growth would add $10 trillion in cumulative GDP over the next ten years (2023 - 2030).

INTRODUCTION TO MODERN INDUSTRIAL ENGINEERING. E-Book FREE Download. 

Lesson 214 of Industrial Engineering FREE ONLINE Course.

Motion Study Charts - Sub-Module

Lesson 212 Motion Study Charts - The Two-Handed Process Chart for Motion Study 





Principles of Motion Economy



Principles of Motion Economy are to be used in motion design, motion analysis, motion study of human operators. Motion design is a technique of Human Effort Industrial Engineering, a core focus area of Industrial Engineering. They can also be used in robot motion design.

Functions and Focus Areas of Industrial Engineering

______________________________________________________________

Principles of motion economy emerged out of the productivity science of human effort and motions pioneered in detail by Frank Gilbreth along with F.W. Taylor.

Use of the Human Body



1. The two hands should begin as well as complete their motions at the same time.

2. The two hands should not be idle at the same time except during rest periods.

3. Motions of the arms should be made in opposite and symmetrical directions and should be made simultaneously.


4. Hand and body motions should be confined to the lowest classification with which it is possible to perform the work satisfactorily.

5. Momentum should be employed to assist the worker wherever possible, and it should be reduced to a minimum if it must be overcome by muscular effort.

6. Smooth continuous motion of the hands are preferable to straight line motions involving sudden and sharp changes in direction.

7. Ballistic movements are faster, easier and more accurate than restricted (fixation) or controlled movements.

8. Work should be arranged to permit an easy and natural rhythm wherever possible.

9. Eye fixations should be as few and as close together as possible.



Arrangement of the workplace


10. There should be a definite and fixed place for all tools and materials. (5S)

11. Tools, materials and controls should be located close to the point of use.

12. Gravity feed bins and containers should be used to deliver material close to the point of use.

13. Drop deliveries should be used wherever possible.

14. Materials and tools should be located to permit the best sequence of motions.

15. Provisions should be made for adequate conditions for seeing. Good illumination is the first requirement for satisfactory visual perception.

16. The height of the work place and the chair should preferably arranged so that alternate sitting and standing at work are easily possible.

17. A chair of the type and height to permit good posture should be provided for every worker.


Design of tools and equipment



18. The hands should be relieved of all work that can be done more advantageously by a jig, a fixture, or a foot-operated device.

Jig and Fixture Design

19. Two or more tools should be combined wherever possible.

Combination Tools

20. Tools and materials should be prepositioned whenever possible.

21. Where each finger performs some specific movement, such as in typewriting, the load should be distributed in accordance with the inherent capacities of the fingers.

22. Levers, hand wheels and other controls should be located in such positions that the operator can manipulate them with the least change in body position and with the greatest speed and ease.

References

Ralph M. Barnes, Motion and Time Study Measurement of Work, John Wiley & Sons, New York, 1980

Principles of Motion Economy



Principles of Motion Economy are to be used in motion design, motion analysis, motion study of human operators. Motion design is a technique of Human Effort Industrial Engineering, a core focus area of Industrial Engineering. They can also be used in robot motion design.

Functions and Focus Areas of Industrial Engineering

______________________________________________________________

Questions for Motion Analysis Based on Principles of Motion Economy

Use of the Human Body



1. The two hands should begin as well as complete their motions at the same time.

Are both hands starting the motion at the same time?

2. The two hands should not be idle at the same time except during rest periods.

Are both hand idle at the same time? Is it planned rest period?

3. Motions of the arms should be made in opposite and symmetrical directions and should be made simultaneously.

Are both hands doing motion symmetrically in opposite directions?


4. Hand and body motions should be confined to the lowest classification with which it is possible to perform the work satisfactorily.

Is the lowest body part (Hand part - finger, wrist, elbow, or arm) being used?

5. Momentum should be employed to assist the worker wherever possible, and it should be reduced to a minimum if it must be overcome by muscular effort.

What is the momentum in motion? Is it being used properly?

6. Smooth continuous motion of the hands are preferable to straight line motions involving sudden and sharp changes in direction.

Are motions smooth and continuous?

7. Ballistic movements are faster, easier and more accurate than restricted (fixation) or controlled movements.

Are moments ballistic?

8. Work should be arranged to permit an easy and natural rhythm wherever possible.

Is there rhythm in the work?

9. Eye fixations should be as few and as close together as possible.

How many eye fixations are there in the motion?



Arrangement of the workplace


10. There should be a definite and fixed place for all tools and materials. (5S)

To minimize search and select therebligs every thing should have a definite place. Is it there?

11. Tools, materials and controls should be located close to the point of use.

What is the distance at which tools, materials and controls are kept? Can it be made more closer?

12. Gravity feed bins and containers should be used to deliver material close to the point of use.

Are gravity feeds being used for material input as well as for finished items?

13. Drop deliveries should be used wherever possible.

Drop delivery is easy release load and gravity feed.  You don't have position therebligs in the case of drop delivery.

14. Materials and tools should be located to permit the best sequence of motions.

What is the sequence of motions due to placement of materials and tools? Can it be changed for motion time reduction?

15. Provisions should be made for adequate conditions for seeing. Good illumination is the first requirement for satisfactory visual perception.

16. The height of the work place and the chair should preferably arranged so that alternate sitting and standing at work are easily possible.

Is the sit - stand facility there?

17. A chair of the type and height to permit good posture should be provided for every worker.

Is the chair giving good posture?


Design of tools and equipment



18. The hands should be relieved of all work that can be done more advantageously by a jig, a fixture, or a foot-operated device.

It is an important point? Is there a work holding device? Does it guide the tool?

Jig and Fixture Design

19. Two or more tools should be combined wherever possible.

If in the same tool two task provision is there, certain therbligs are saved.

Combination Tools

20. Tools and materials should be prepositioned whenever possible.

Are tools and materials getting prepositioned for easy grasping?

21. Where each finger performs some specific movement, such as in typewriting, the load should be distributed in accordance with the inherent capacities of the fingers.

What is the load on each finger?

22. Levers, hand wheels and other controls should be located in such positions that the operator can manipulate them with the least change in body position and with the greatest speed and ease.

What is the comfort or discomfort for the operation in operating controls?


Application and Case Studies

PRODUCTIVITY IMPROVEMENT ON LAMP ASSEMBLY LINE

Conference Paper · October 2016

Improving The Assembly Process of Down lighter by using Two Hand Process Chart

Kajal Sejpal
International Journal of Engineering and Advanced Technology (IJEAT)
ISSN: 2249 – 8958, Volume-6 Issue-4, April 2017
In this project, productivity is improved by optimizing certain operations of the manual assembly process of a product.   In this paper, flow process chart of assembly line of a particular product is 
studied. The two hand process chart of selective time consuming operations is carried out. The time saved and improvement to the operations is noted.  A new standard process in manual assembly line is created,  time is saved as well as energy of the worker is also saved. This leads to increased units of production and lesser fatigue.


ILO Book Content on The Two-Handed Process Chart



https://archive.org/stream/in.ernet.dli.2015.275373/2015.275373.Motion-And_djvu.txt

Wednesday, November 3, 2021

SIMO Chart Analysis

INDUSTRIAL ENGINEERING is redesign (engineering) of Products, Facilities and Processes for Productivity increase.
Productivity Management Imperative for USA - McKinsey. Returning US productivity to its long-term trend of 2.2 percent annual growth would add $10 trillion in cumulative GDP over the next ten years (2023 - 2030).

INTRODUCTION TO MODERN INDUSTRIAL ENGINEERING. E-Book FREE Download. 


Lesson 215 of Industrial Engineering FREE ONLINE Course.

Lesson 213: SIMO Chart Using Therbligs - Two Handed Chart for Micro-Motion Study


Motion Study Charts - Sub-Module

Lesson 212 Motion Study Charts - The Two-Handed Process Chart for Motion Study 




Adapted from Barnes treatment of the same.

Simo chart analysis is based questions regarding therbligs. SIMO is made using therbligs being undertaken by left hand and right hand (body parts in more general terms).

Motions - Therbligs

 

Select

 
  • Is there an alternative workbench layout that reduces searching for articles?
  • Can tools and materials be standardized and variety reduced? (Can combination tools be used?)
  • Are parts and materials properly labeled?
  • Are common parts interchangeable? Reduce variety of parts.
  • Are parts and materials kept separate?
  • is the lighting satisfactory to facilitate search?
  • Can color be used to facilitate selecting parts?

See the 5S prescriptions in these analytical questions. The Japanese practice has now become popular in literature to reduce search especially in the context of setup time reduction. You can see it is an old principle and practice in industrial engineering.
 

Grasp

 
Is it possible to grasp more than one object at a time? (This question comes frequently instead of handling only one can we handle multiple items in a single instance?)

Can you use a sliding in place and grasping and carrying the part?
Is there a lip in front of the parts bin to facilitate gravity feed and ease of grasping?
Is prepositioning tools and materials simplify grasp?
Can any special tool facilitate easy grasp using tool?
Can magnetic force or vacuum be used advantageously?
Does the fixture help in easy grasp of the part after completing the operation?

Observe the focus on various items used at the work place in stead of the actual motion of the hand. It is important to improve many things in the work place to reduce motion time.


 

Transport Empty and Transport Loaded

 
  • Can either of these motions be eliminated entirely?
  • Is the distance traveled the best one?
  • Are correct means used - tweezers, etc.?
  • Are the correct members (and muscles) of the body used - fingers, forearm, shoulder etc.?
 

Hold

 
Can a vise, clamp, clip, vacuum, hook, rack, fixture, or other mechanical device be used?
When hold cannot be avoided, can arm rests be provided?
 

Release Load

 
Can this motion be eliminated?
 

Position

 
Is positioning necessary?
Can tolerances be increased?
Can a guide, funnel, bushing, gauge, stop, swinging bracket, locating pin, spring, drift,recess, key, pilot on screw, or chamfer be used for positioning?
Is the operator grasping the work piece for easiest positioning?
Can a foot operated collet be used?
 

Pre-position?

 
Can the object be pre-positioned in transit?
Can holding device be made to keep tool handle in proper position
Can tools be suspended?
Can tools be stored in proper location to work?
 

Inspect

 
Can inspect be eliminated or overlapped with another operation?
Can multiple gauges or tests be used?
Can machine inspection be used instead of manual inspection
 

Assemble, Disassemble, and Use

 
Can a jig or fixture be used?
Can stops be used?
Should a power tool be used?
Can a cam or air-operated fixture be used?
 
Some more questions are to be added especially regarding motions.

Please give your suggestions on more questions and analytical directions? If you analyzed a SIMO chart what are questions you used?

 

References

 
Barnes, Ralph M., Motion and Time Study: Design and Measurement of Work, Seventh Edition, John Wiley & Sons, New York, 1980, Chapter 14. The Use of Fundamental Hand Motions.



 

Motion Study - Operation Analysis - Questions - Barnes

 
 
Industrial engineering is based on question and answer method. The answers to each question have to come from the facts and the knowledge  base of the industrial engineer and the experts, engineers, supervisors and operators involved in the study. Industrial engineer is responsible for conducting the questioning process and for certifying that adequate and satisfactory answers were given by the participants of the study (It is important to reemphasize that industrial engineer himself is one of the participants for giving the answers to the questions in some areas of his expertise and experience)
 

1. Material

 
Is the material uniform and in proper condition when brought to the workbench?
Is the material stored in suitable containers for easy pick up by the operator?
Can the operator be relieved of picking up the material by the use of materials handling equipment?
 

2. Tools, Jigs and Fixtures

 
Are the tools the best kind for this work?
Are the tools in good condition?
In case of metal cutting tools, are the cutting angles of the tools correct, and are they ground in a centralized tool-grinding department and subject to quality control?
Can tools or fixtures be changed so that less skill is required to perform the operation?
Are both hands occupied by productive work in using the tools and fixtures?
Can slide feeds, ejectors, holding devices, etc., can be used?
Can an engineering change be made to simplify the design of the jig or fixture?
 

3. Machine

 
A. Set up
 
Should the operator set up his own machine?
Can the machine speed or feed be increased?
Can an automatic feed be used?
Can the operation be still divided further into two or more short operations?
Can two or more operations be combined into one?
Can the sequence of operations at the work bench be changed?
Can the part be pre-positioned for the next operation?
Can an inspection be combined with an operation?
Is the machine kept in good working condition?
 

4. Operator

 

A. Person and Supervision

 
Is the operator qualified to perform this operation?
Is there adequate supervision?
Does the operator need more training?
 

B. Motions

 

Select

 
Is there an alternative workbench layout that reduces searching for articles?
Can tools and materials be standardized and variety reduced?
Are parts and materials properly labeled?
Are common parts interchangeable? Reduce variety of parts.
Are parts and materials kept separate?
is the lighting satisfactory to facilitate search?
Can color be used to facilitate selecting parts?
 

Grasp

 
Is it possible to grasp more than one object at a time?
 

Transport Empty and Transport Loaded

 
Can either of these motions be eliminated entirely?
Is the distance traveled the best one?
Are correct means used - tweezers, etc.?
Are the correct members (and muscles) of the body used - fingers,forearm, shoulder etc.?
 

Hold

 
Can a vise, clamp, clip, vacuum, hook, rack, fixture, or other mechanical device be used?
When hold cannot be avoided, can arm rests be provided?
 

Release Load

 
Can this motion be eliminated?
 

Position

 
Is positioning necessary?
Can tolerances be increased?
Can a guide, funnel, bushing, gauge, stop, swinging bracket, locating pin, spring, drift,recess, key, pilot on screw, or chamfer be used for positioning?
Is the operator grasping the work piece for easiest positioning?
Can a foot operated collet be used?
 

Pre-position?

 
Can the object be pre-positioned in transit?
Can holding device be made to keep tool handle in proper position
Can tools be suspended?
Can tools be stored in proper location to work?
 

Inspect

 
Can inspect be eliminated or overlapped with another operation?
Can multiple gauges or tests be used?
Can machine inspection be used instead of manual inspection
 

Assemble, Disassemble, and Use

 
Can a jig or fixture be used?
Can stops be used?
Shoud a power tool be used?
Can a cam or air-operated fixture be used?
 
Some more questions are to be added especially regarding motions
 

References

 
Barnes, Ralph M., Motion and Time Study: Design and Measurement of Work, Seventh Edition, John Wiley & Sons, New York, 1980
 
________________________________________________________________________________________
Related Web Pages
 
Therblig Analysis Checklist
 
OK - Knol Number 1841

Ud 3 November 2021
Pub 6.4.2012

Tuesday, November 2, 2021

SIMO Chart Using Therbligs - Two Handed Chart for Micro-Motion Study

INDUSTRIAL ENGINEERING is redesign (engineering) of Products, Facilities and Processes for Productivity increase.
Productivity Management Imperative for USA - McKinsey. Returning US productivity to its long-term trend of 2.2 percent annual growth would add $10 trillion in cumulative GDP over the next ten years (2023 - 2030).

INTRODUCTION TO MODERN INDUSTRIAL ENGINEERING. E-Book FREE Download. 


Lesson 213 of Industrial Engineering ONLINE Course.

Lesson 212 Motion Study Charts - The Two-Handed Process Chart for Motion Study 




Gilbreths wrote, "Our methods of making motion study are by the use of the micromotion, simultaneous motion cycle chart, and chronocyclegraph methods."

"The effects of motion study are particularly striking upon the observer or the man actually making the studies. This is true not only during the time of making the observation, but also during the time spent in embodying the data derived in simultaneous cycle motion charts and in motion models. These motion models, which are wire representations of the paths of the motion, made from the stereoscopic records derived from the chronocyclegraph process have a peculiar educative value."

Part 5 - The Practice of Motion Study  - Gilbreth

https://nraoiekc.blogspot.com/2021/10/part-5-practice-of-motion-study-effect.html


SIMO Chart Explanation

___________________


https://www.youtube.com/watch?v=BGxW2T8lhFU

___________________



Related Articles


Paper on Therbligs (Elements of Work) by Gilbreth

https://nraoiekc.blogspot.com/2012/07/paper-on-therbligs-by-gilbreth.html


The Two-Handed Process Chart for Motion Study - Motion Study Charts

https://nraoiekc.blogspot.com/2016/09/the-two-hhanded-process-chart-for.html











Chapter 10.X THE EIGHTH PRINCIPLE: STANDARDS AND SCHEDULES - Harrington Emerson


Chapter X THE EIGHTH PRINCIPLE: STANDARDS AND SCHEDULES
(Harrington Emerson - The Twelve Principles of Efficiency)

HUMMING birds winter in Central America and nest in summer in Alaska, yet bring up families as beautiful, as courageous and as achieving as themselves. The stormy petrel flies four hundred miles
through the fog and strikes its burrow exactly, storks marked in Norway have been caught in
South Africa, curlew and plover are supposed to fly at the rate of four miles a minute.

The barn-yard fowl, if frightened, runs and flutters over a low fence, and panting with ex-
haustion is soon run down. The rooster uses his wings to flap when he crows, the hen uses
hers to brood her chicks, their ancestors having forgotten that they were birds and that the
limitless air was their inheritance.

''Whoever heard of a woman tiring when she was having a good time, even if she had danced
all night?" said Nietzsche, and the police in San Francisco on March 20, 1910, on advice of
doctors present, stopped a dance after six of the contestants had been dancing 15 hours and
6 minutes.

Prof. William James pointed out and insistedon the second wind, the ability that comes after
first fatigue, after the barn-yard flutter, to en-dure and achieve, to fly !

Standards and Schedules ! These are of two kinds, the physical and chemical standards dis-
covered and established in the last century, standards and schedules as exact as mathe-
matics, and those other schedules resting on standards whose upper limit we do not yet
know. We have our five senses. We can taste or smell an infinitesimal taint in food, we can
smell the millionth part of a grain of musk, we can discern by touch the ten-thousandth part
of an inch, a man heard 2,390 miles away the boom of the explosion of Krakatoa, we see bil-
lions and billions of miles distant a new star bursting into brilliance; but there is a region
not ten miles away about which we know less than we know of the nebulae, because we can-
not reach it with our senses, nor yet with our physics and mathematics — a region ten miles
or less straight down under foot.

By bringing into play our instruments, our bolometers which measure the millionth of a
degree of heat, our ultra-microscope which al-most enables us to see the atoms, one one-mil-
lionth of a second measured on the tracing of a tuning fork's vibrations — by the refinements of
physics and chemistry we can peer into the true inwardness of material things ; so we use stop
watches for time and motion studies of our ma-chines ; but when we wish to schedule work f 01
sentient beings, then our mathematics fail and we fall back on experiments inspired by faith.
Four miles a minute the flight of a little bird, 99 per cent and more the efficiency of the fire-
fly's flight, the sixth sense of the blinded bat, the sudden stop of the grizzly bear from full
trot in darkest night when he was within a foot of the finest flower wire leading to a flash-light
camera !

All around us, everywhere nature has been showing us that increased result comes from
lessened effort, not from greater effort, but we have been too stupid to understand. Because it
takes one pound of coal to produce one horse power, and two pounds of coal to produce two
horse power, because it is harder to jump over a fence four feet high than over a fence two feet
high, because it is more difficult to jump over a fence five feet high, we have non-reasoned back
from results to effort, and concluded that effort should be gauged by result which is in accord
with one set of experiences but wholly contrary to the larger experience. Any specific kind of
effort, measured by results, falls from a max-imum to a minimum and then rises again to
another maximum, so that there is only one point where maximum result is attained for
minimum effort, a point properly scheduled at 100 per cent.

As to specific result it may be attained in many ways. Tame geese in Germany are slowly
driven to market in September, waddling a few miles each day. They are prepared for the trip
by walking through soft, warm tar and then through fine gravel and sand, so that, thus shod,
their feet may stand the weary march. Wild geese fly from Golofnin Bay, Alaska, to the
tropics in less time than the tame geese waddle a hundred miles. The wild goose's distance and
time schedule would be ridiculous for the tame goose, the latter's schedule an absurdity not less
cruel for the wild geese.

As to the variation in effort for similar con-ditions, we have but to remember that while it
is pleasant to spend from six to twelve hours in bed, it is an affliction to spend all one's time in
bed, a greater affliction than to have no bed and to snatch rest as one can on a long tramp or
journey, for men can sleep even when walking. It is easy to walk three or four miles an hour ;
it is intensely wearying to stand waiting or to walk two miles an hour, when shopping with
one's wife — more wearying than the five-mile an hour trot of the Yukon winter trail. It is easy
to ride a bicycle 10 to 15 miles an hour, it is desperately hard to ride 1 mile an hour or 20
miles an hour, and either endeavor will send the rider exhausted to bed. How much more ex-
hausting it is to breathe either fast or slow than to breathe naturally, the latter being abso-
lutely effortless and kept up from birth to death, waking or sleeping. Natural breathing,
natural heart beats, natural temperature, are 100 per cent efficiency.

This law of the reduction of effort for greater results crops up in the most unexpected places, so that engineers have evolved the definite critical speed, the speed of maximum result for relatively least expenditure.

In fast steamers resistance does not increase with the cube of the speed, but there are certain
higher critical speeds at which resistance is less. Nearly 100 years ago in England a man
running express-passenger canal boats had them towed by galloping horses at a speed of
nearly 14 miles an hour, claiming this was easier than a slower speed. He was ridiculed
by scientists who opposed the law of cubic in-crease of resistance. A bet was made, dyna-
mometers attached, and up to 8 miles the law held good ; but above 8 miles the canal boat be-
gan to climb out of the water, so that at 14 miles the actual resistance was small. This
was the origin of the hydroplane boat. A wise Kansas mare hitched to a plow, pulling heavily,
would look back, take in the situation, and in-crease her speed. The plow immediately pulled
easier because the greater speed flung the cling-ing earth free of the mold board, thus greatly
lessening friction.

Time and motion studies having been made as to all the work of a gang of men, both conditions and operations were standardized and an efficiency reward was offered. The results are shown in the diagram opposite. Nearly all the men are grouped between 80 per cent and 120 per cent, with the greatest density around 120 per cent — the region of least effort. The hardest worked man both physically per unit of time and physically per unit of result, was Poder, with an efficiency of 7.8 per cent. He was more exhausted at the month's end than Harris, who attained 139.2 per cent; Keief, King, and Clohessy were more tired at the day's end than Boyce and Hauf ; Magill was as tired as Hauf.

A casual observation of the passengers leaving the Atlantic Highland boats at the Rector Street pier in New York on a Monday morning in summer, shows conclusively that in the crowd, some (a very few) travel over the long gallery from boat to street at the rate of 6 miles an hour; others, quite a bunch, at the rate of 4 miles ; but the great body travels at the rate of 3 miles, and there are stragglers, mothers with little children, old ladies of social weight, also lingering lovers, who travel at rates shrinking to 2 miles an hour. The able-bodied, in so far as not hindered, have an average rate of 4 miles; and from these observations of voluntary effort, we can well establish a walking standard of 4 miles an hour with disapprobation if the rate falls below 3 miles, with special reward to those who reach and pass the 4-mile mark. Had we diagrammed these walkers on the pier, they wouJd have given us a picture similar, to the machine-shop curve of Poder to Harris. Both diagram and description show that the increase of effort between 100 per cent and 140 per cent efficiency is very slight — only 25 per cent, quite within the limit of normal variation above the rational average; and it also shows how it is possible for a good man to deliver nearly twenty times as much as the incompetent man, four times as much as the laggards, twice as much as the haphazard workers. Poder, Keief, King and Clohessy could never become Hauf , Boyce,
and Harris. Piece rates based on the perform-ance of Harris would be as ridiculous for Poder as wild-geese schedules imposed on tame geese fattening for Michaelmas; but, without injustice to Keief, King, and Clohessy, the nat-ural Hauf s, Boyces, and the Harris clan can be selected for their natural work and be correspondingly rewarded.

There are places where Poder and Clohessy would fit, even as the tame goose, plucked for
its feathers and prepared for the feast, shows 100 per cent efficiency, and the thin, stringy
wild goose is far below par. The schedule must fit the man and the man the schedule ; there is
no such thing as a definite universal schedule. At best there is a broad schedule band (in the
diagram, the region between 80 per cent and 120 per cent) and the records will show clearly
whether the men have been selected to fit the schedule and whether the schedule fits the man.
Irrespective of any current wage rate, a shop cannot be filled with the Hauf to Harris thor-
oughbreds for the wages that will attract the Poders and Clohessys.

If all conditions were absolutely standard-ized, if all operations were also perfectly stand-
ardized, piece rates might apply with reason-able equity and fairness to the tame geese trav-
eling the same road in the same weather with the same tar-sand shoes; but what about the
wild geese far overhead? They must have schedules based on other standards.

The physiological objection to piece rates is that they stimulate strenuousness, increase of effort, when what we want is a betterment of conditions so as to achieve greater result with less effort.

In the diagrams on pages 270 and 272 the speeds per hour for the best athletic records
from start up to 100 miles show the time relations between different methods for the same
distance. The results are tabulated as follows :


Table of Athletic Records

One Mile One Hundred Miles



_/ . , k.



Actual Relative Actual Relative Rela-
speed speed speed speed tive to













1 mile


Amateur walking..


9.2


100


4.8


100


52


Amateur running..


14.


152


5.6


117


40


Amateur skating..


21.8


237


14.


292


64


Amateur bicycle














31.4


341


20.2


421


64


Professional bicycle














55.3


601


35.5


740


64



It is known that each of these men put forth his best efforts, and assuming the men to be
equal in strength, endurance, skill, we become certain that the mere addition of skates to the
shoes increased the speed for the same effort 2.37 times at one mile and 2.92 times at 100
miles; that the substitution of a bicycle for skates increases the speed 3.4 times at one mile,
4.2 times at 100 miles ; and that the addition of a helping pacer, who in no way touches the
rider, merely shielding him from the wind, in-creases the speed above walking six-fold at one
mile, 7.4 times at 100 miles. All these records are of abnormal, excessive, and extreme speeds,
but who can doubt that the relation would re-main the same if they were halved, thus brought
down to high normal — 4.6 miles for walking, 28 miles for paced bicycle?

The time may come when aeroplanes rising on the wind as do the birds will glide on up-
ward currents, as also do the birds, at a rate of two miles a minute for a thousand miles, or
twenty-five times as fast as the walker, yet ex-ert no muscular effort, using delicate instru-
ments to feel the wind, and intelligence to guide the flyer.

Other facts appear from the table and dia-gram. For the 100-mile stretch compared to
the one-mile stretch, both bicycle and skating fall to only 64 per cent of the speed, but walk-
ing and running collapse respectively to 52 and to 40 per cent, so the man-used and man-driven
tools not only vastly increase the speed, but maintain it at a far higher proportion. At one
mile the paced bicycle rider is only six times as fast as the walker, at 100 miles he is nearly
seven and a half times as fast.

It also appears that the trotting horse, who begins faster than the skater, is distanced by
him at 24 miles, and after that steadily falls be-hind. The horse does not have the man's cour-
age. The man helped only by his bicycle is throughout faster than the trotter, faster than
the running horse after the third mile.

For physical, for chemical, and for electrical relations we can set absolute standards :

746 watts.

33,000 foot-pounds per minute
1 horse power=« 2,545 heat units per hour

0.175 pounds carbon oxidized per hour w 2.64 lb. of water evaporated per hour

Practical standards are very different — one pound of coal in steam engines per horse-power
hour, 10 pounds of water evaporated per pound of coal instead of 15 !

For physical standards we can measure the extent of the shortcomings and diligently strive
to lessen the losses; but in making standards and schedules for man we must first classify our
men, and then we must so equip them that they can as easily do six times, seven times — yes,
perhaps one hundred times as much.

Walking 9.2 miles an hour is as to normal walking 200 per cent efficient, not a normal
standard for any regular work, but compared to the effortless glide of the aeroplane it is only
10 per cent efficient.

To establish rational work standards for men requires indeed motion and time studies of all operations, but it requires in addition all the skill of the planning manager, all the skill of the physician, of the humanitarian, of the physiologist, of the psychologist ; it requires infinite knowledge, directed, guided and restrained by hope, faith and compassion.

The promise already partly fulfilled and clearly held out as to the future is that greater and greater results shall follow constantly di-minishing effort.


Commentary by KVSSNRao

To establish rational work standards for men requires indeed motion and time studies of all operations, but it requires in addition all the skill of the planning manager, all the skill of the physician, of the humanitarian, of the physiologist, of the psychologist; it requires infinite knowledge, directed, guided and restrained by hope, faith and compassion. 


Ud 2 Nov 2021
Pub 3.10.2014

Industrial Engineering Techniques - Articles, Books, Courses

Industrial Engineering FREE ONLINE Course


Time studies as a basis for rate setting: Time studies as a basis for rate setting as developed in the Taylor system of management
by Merrick, Dwight V
Publication date 1919


Biblography on Scientific Management

Time and motion study and formulas for wage incentives,
by Stewart M. Lowry ... Harold B. Maynard ... and G. J. Stegemerten ...
Stegemerten, G. J. 1892-1987., Maynard, Harold B. 1902-1975.
Language(s): English
Published: New York [etc.] McGraw-Hill Book Company, inc., 1927.
Edition: 1st ed.
https://catalog.hathitrust.org/Record/006566035

Time and motion study and formulas for wage incentives,
by Stewart M. Lowry ... Harold B. Maynard ... and G. J. Stegemerten.
Stegemerten, G. J. 1892-1987., Maynard, Harold B.
Language(s): English
Published: New York, McGraw-Hill book company, inc., 1932.
Edition: 2d ed.
https://catalog.hathitrust.org/Record/005788043


Financial incentives for factory workers;
standardizing tasks and establishing wage incentives that increase earnings and add to profits ...
Lowry, Stewart McKinley, 1896-
Language(s): English
Published: [New York] Alexander Hamilton Institute, c1931.
https://catalog.hathitrust.org/Record/100927275

The worker and wage incentives;
the Bedaux and other systems
[by] W. F. Watson.
Watson, William Foster, 1881-
Language(s): English
Published: London, L. and Virginia Woolf at the Hogarth press, 1934.
Subjects: Bonus system.
Wages.
Industrial efficiency.
Physical Description: 46 p. 19 cm.
https://catalog.hathitrust.org/Record/006598709

Time Study Chapter by Barnes
Detailed determination of Machining Job Time
https://babel.hathitrust.org/cgi/pt?id=uc1.$b27038&view=1up&seq=141

Industrial engineering and management, problems and policies,
by Ralph M. Barnes ...
Barnes, Ralph Mosser, 1908-
Language(s): English
Published: New York and London, McGraw-Hill Book Company, c1931
Edition: 1st ed.
Full view
https://catalog.hathitrust.org/Record/001044752


Industrial Engineering - Knol Books - Catalogue

Industrial Engineering - Articles and Books (Free Download)

Work Study Course for Shipyard Personnel - Course Material
http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA451977&Location=U2&doc=GetTRDoc.pdf



Introduction to Industrial Engineering -  Course Page

http://knol.google.com/k/narayana-rao-k-v-s-s/introduction-to-industrial-engineering/2utb2lsm2k7a/2105  (Knol was closed and IE articles on Knol were transferred to this blog)





France in the Age of Organization: Factory, Home and Nation from the 1920s to Vichy


ackie,

Berghahn Books, 15-Jun-2011 - History - 228 pages
In interwar France, there was a growing sense that ‘organization’ was the solution to the nation’s perceived social, economic and political ills. This book examines the roots of this idea in the industrial rationalization movement and its manifestations in areas as diverse as domestic organization and economic planning. In doing so, it shows how experts in fields ranging from engineering to the biological sciences shaped visions of a rational socio-economic order from the 1920s to Vichy and beyond.

 Google Book Link
http://books.google.co.in/books?id=B3euy5UJbsoC



The Human Motor: Energy, Fatigue, and the Origins of Modernity
Anson Rabinbach

University of California Press, 1992 - Philosophy - 402 pages
"Masterfully integrating Europe-wide debates in science, philosophy, technology, economics, and social policy, Rabinbach has provided us with a profoundly original understanding of the productivist obsessions from which we are still painfully freeing ourselves. . . . A splendid example of the mutual enrichment of intellectual and social history. It goes well beyond its central concern with the 'science of work' to illuminate everything it discusses, from Marxism to the social uses of photography, from cultural decadence to the impact of the First World War."--Martin Jay, University of California, Berkeley

Google Book Link
http://books.google.co.in/books?id=e5ZBNv-zTlQC

Course Outline - Industrial Engineering - 40 hours program by Protech

Industrial Engineering Techniques is an on-site 40-hour program, normally presented in five consecutive days, which provides new engineers, supervisors, non-IEs, and other technical and non-technical personnel a grounding in classical Industrial Engineering methods and procedures.

The program relies heavily on interactive demonstrations, teamwork, video, and class exercises. This program has been presented many times for automobile manufacturers and OEM suppliers, and uses numerous video examples of real plant scenes in fabrication and assembly operations. The overall program consists of several "modules" that may added or deleted to produce a custom program of 24 to 40 hour duration if desired.

1.0  Introduction to Industrial Engineering and Methods Analysis
     1.1  Definition of Industrial Engineering
     1.2  Relationship of Method to Time
     1.3  IE History; Taylor and Gilbreth

2.0  Methods Analysis and Work Measurement
     2.1  Manufacturing Systems and Concepts
     2.2  Methods Analysis and the Methods Engineering Approach
     2.3  Work Measurement

3.0  Manufacturing Systems Analysis
     3.1  Methods of Organizing Information
     3.2  Symbol systems
     3.3  The Fabrication Chart
     3.4  The Precedence Chart
     3.5  The Flow Chart
     3.6  The Process Chart
     3.7  The Flow-Process Chart

4.0  The Analysis of Manual Methods
     4.1  Components of job study; task, element, act, motion,
     4.2  Purposes of  job analyses
     4.3  Effects on method
     4.4  Variation in Output within Fixed Limits
     4.5  The Acts
     4.6  Review of analysis form and sample Act Breakdown
     4.7  Progressive improvement

5.0  Methods Summary Charting
     5.1  Definition and purpose of methods summary charting
     5.2  Types of charts; man/man, man/machine
     5.3  Review of methods summary chart
     5.4  Video exercises

6.0  Ineffective Worker Movement Analysis
     6.1  Definition
     6.2  Causes of Ineffective Worker Movements
     6.3  Video examples
     6.4  Six steps of analysis
     6.5  Analysis form--Ineffective Worker Movement
     6.6  Team exercises

7.0  Motion Economy and Workplace Layout
     7.1  Improving the motion path; barriers
     7.2  Workplace layout principles
     7.3  Motion Economy Check List; discussion of 20 Principles

8.0  Ergonomics (Human Factors)
     8.1  Definition
     8.2  Scope and history
     8.3  Anthropometry
     8.4  Discussion of body dimensions
     8.5  Workplace design dimensions
     8.6  NIOSH guidelines for manual lifting
     8.7  Hand tool design

9.0  Work Measurement
     9.1  Overview of work measurement concepts
     9.2  The Standard Hour Concept
     9.3  Time study
          9.3.1  Stopwatches
          9.3.2  Procedure
          9.3.3  Work description
          9.3.4  Elemental breakdown
          9.3.5  Types of method description
          9.3.6  Keywords, breakpoints
          9.3.7  Irregular elements, foreign elements
          9.3.8  Number of cycles to study
     9.4  Evaluating operator performance
          9.4.1  Definition
          9.4.2  Characteristics of normal performance
          9.4.3  Performance descriptors; skill, effort, pace, etc.
          9.4.4  Benchmarks
          9.4.5  Performance rating systems
          9.4.6  Selection of an average operator
     9.5  Recording the data
           9.5.1  Snapback vs. continuous study
     9.6  Time study exercises

10.0 Work Sampling
     10.1 Introductory Video
     10.2 Work Sampling Procedure
          10.2.1 Statistical principles, randomness
          10.2.2 Demonstration
          10.2.3 Determination of sample size; alignment chart
          10.2.4 Design of study elements
          10.2.5 Taking the study; instantaneous observation
          10.2.6 Tracking progress of the study
     10.3 Work Measurement Sampling
     10.4 Use of an electronic random reminder; time management

11.0 Line Balancing
     11.1 Discussion--Use of powered lines
     11.2 Factors influencing product assembly; design, equipment, precedence
     11.3 Build methods; process or product orientation, fixed position
     11.4 Line types; straight, circular, indexing or continuous
     11.5 Requirements for the line balancing process
     11.6 Line balancing procedure
     11.7 Line balance-powered line operations
     11.8 Line balance class problem (team exercise)

12.0 Summary and Critique
---------------------
Industrial Engineering Techniques for Improving Operations
McGraw Hill Book Co, June 1986

Operation Analysis by Maynard, 1939

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Industrial Engineering Skills


---------------------------
HONG KONG IGDS MODULE OUTLINE
INDUSTRIAL ENGINEERING FOR BUSINESS IMPROVEMENT
INTRODUCTION:
This course module provides an introduction to Industrial Engineering techniques as used to measure and improve productivity, and defines the role of I.E. data in a company's planning and costing systems.
OBJECTIVES:
On completion, participants will be capable of:
(1)
Understanding the role of Industrial Engineering in productivity improvement.
(2)
Using I.E. techniques in simple applications for manpower and capacity planning.
(3)
Understanding the social context of industrial engineering.
(4)
Directing the industrial engineering activity to achieve business objectives.
CONTENTS:
  1. Industrial Engineering and Productivity Measurement
  2. Problem solving in Industrial Engineering
  3. Method Study
  4. Work Measurement
  5. Layout Planning
  6. Control of staff and production indirects
  7. Ergonomics
  8. Job Design
  9. Human Relations
  10. Manpower and capacity planning
DURATION: 40 hours
------------------------------------
http://www.uta.edu/gradcatalog/2004/ie
IE 5191. ADVANCED STUDIES IN INDUSTRIAL ENGINEERING Individually approved research projects and reading courses in industrial engineering. Such individual studies will be graded A, B, C, D, F or X. Subject to the approval of the Graduate Advisor, IE 5191, 5291 and 5391 may be repeated as the topics change. In addition, work on a thesis substitute will be performed under IE 5391. In this case, IE 5391 is graded P/F/R.
Prerequisite: written approval of both the supervising faculty member and Graduate Advisor.
IE 5291. ADVANCED STUDIES IN INDUSTRIAL ENGINEERING Individually approved research projects and reading courses in industrial engineering. Such individual studies will be graded A, B, C, D, F or X. Subject to the approval of the Graduate Advisor, IE 5191, 5291 and 5391 may be repeated as the topics change. In addition, work on a thesis substitute will be performed under IE 5391. In this case, IE 5391 is graded P/F/R.
Prerequisite: written approval of both the supervising faculty member and Graduate Advisor.
IE 5300. TOPICS IN INDUSTRIAL ENGINEERING (3-0)
A study of selected topics in industrial engineering. May be repeated when topics vary.
Prerequisite: consent of instructor and Graduate Advisor.

IE 5338. HUMAN ENGINEERING (3-0)
Human structural, physiological, psychological, and cognitive capacities and limitations in the workplace, and their effects on the design of work systems to enhance productivity, and maintain health and safety.
Prerequisite: IE 3301 or equivalent, or consent of instructor.

IE 5350. GRADUATE DESIGN CAPSTONE (3-0)
Practicum in Industrial Engineering techniques consisting of professional level experience in a relevant company, agency, or institution. This technical experience is directed by a supervising professor and requires the writing of a professional report.
Prerequisite: 24 hours of graduate work in Industrial Engineering.

-------------------------------

 

Management of Engineering Design Office Operations through Utilisation of Computer Systems and Application of Industrial Engineering Techniques


Mitchell, RM; Hing, CR; Bashford, KH
Abstract: The paper describes a project undertaken with the aim of improving management of an Engineering Design Office. Dealt with are the application of industrial engineering techniques to develop performance standards and procedures for their use, development of a supporting computer system, and education of engineering managers to facilitate implementation and maintenance of new systems.
Conference on Engineering Management 1981

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Updated on 2 Nov 2021,  31 July 2020
First published on 19 October, 2013