This document outlines principles of motion economy as they relate to the human body, work arrangement, and tool/equipment design. It presents 9 principles for efficient body motion, including keeping both hands active and moving symmetrically. Regarding work arrangement, it emphasizes having fixed places for tools/materials near the point of use. Tool/equipment design principles focus on reducing unnecessary motions and accommodating natural body movements. Examples demonstrate analyzing manual tasks and improving layouts to follow ergonomic principles for less fatigue and higher productivity.
The principles of motion economy form a set of rules and suggestions to improve the manual work in manufacturing and reduce fatigue and unnecessary movements by the worker, which can lead to the reduction in the work related trauma.
motion economy reduce the excessive motions of human body tools, equipment and layout changes. it also save the money, time & energy in a work place.
*created by: chinthana priyabhashana
Performance Rating of workers on Assembly Line or Employees in Industry, Systems of Rating: Pace Rating, Westinghouse Rating, Objective Rating, Synthetic Rating
The principles of motion economy form a set of rules and suggestions to improve the manual work in manufacturing and reduce fatigue and unnecessary movements by the worker, which can lead to the reduction in the work related trauma.
motion economy reduce the excessive motions of human body tools, equipment and layout changes. it also save the money, time & energy in a work place.
*created by: chinthana priyabhashana
Performance Rating of workers on Assembly Line or Employees in Industry, Systems of Rating: Pace Rating, Westinghouse Rating, Objective Rating, Synthetic Rating
This is presentation about Micro-Macro Motion Study in use of work study. here defined about work method in subject of industrial engineering technology,
Industrial Engineering Tools of Motion economy principles for developing manu...মোঃ ফুরকান উদ্দিন জুয়েল
Motion Economy
It is a system, which studies the basic human motion of an operative in performing a job. Accordingly the economy of movements has been classified under three major areas under concern.
1. Use of human body
2. Arrangement of work place
3. Designing of tools and equipment
Principles of Motion Economy
The principles laid down under each of the major area may not be applicable all the time in the shop, floor or office. But, they form a very good basis for improving the efficiency and reducing the fatigue of manual work.
Industrial Engineering (IE) offers immense opportunities to improve Productivity, Quality and Responsiveness. Herein , some of the issues are highlighted.
Principles of motion economy By Mazedin RezaMazedin Reza
Principles of motion economy By Mazedin Reza
Related Industrial Engineering & Textile Engineering.Motion economy helps achieve productivity and reduce Cumulative Trauma at the workstation or sub-micro level.
This is presentation about Micro-Macro Motion Study in use of work study. here defined about work method in subject of industrial engineering technology,
Industrial Engineering Tools of Motion economy principles for developing manu...মোঃ ফুরকান উদ্দিন জুয়েল
Motion Economy
It is a system, which studies the basic human motion of an operative in performing a job. Accordingly the economy of movements has been classified under three major areas under concern.
1. Use of human body
2. Arrangement of work place
3. Designing of tools and equipment
Principles of Motion Economy
The principles laid down under each of the major area may not be applicable all the time in the shop, floor or office. But, they form a very good basis for improving the efficiency and reducing the fatigue of manual work.
Industrial Engineering (IE) offers immense opportunities to improve Productivity, Quality and Responsiveness. Herein , some of the issues are highlighted.
Principles of motion economy By Mazedin RezaMazedin Reza
Principles of motion economy By Mazedin Reza
Related Industrial Engineering & Textile Engineering.Motion economy helps achieve productivity and reduce Cumulative Trauma at the workstation or sub-micro level.
Ergonomics can roughly be defined as the study of people in their working environment.
scientific discipline concerned with the understanding of interactions among humans and other elements of a system, and the profession that applies theory, principles and methods to design to optimize overall human performance.”
Improves job process by eliminating unnecessary tasks,steps and efforts.
Reduce potential for overexertion injury.
Minimize mental/physical fatigue potential.
Leverage workers’ skills & knowledge .The objective is to improve the efficiency of operation by taking into account a typical person’s size, strength, speed, visual activity and physiological stresses such as fatigue, speed of decision making, and demands on memory and perception.
To maximize productivity while lowering the risk of musculoskeletal disorders(MSDs).MSDs develop as a result of long term exposure to a combination of ergonomic risk factors such as repetition, high forces and awkward postures.
BOS 3701, Industrial Ergonomics 1 UNIT III STUDY Musc.docxhartrobert670
BOS 3701, Industrial Ergonomics 1
UNIT III STUDY
Muscular Work, Nervous Control of
Movements, and Anthropometry
Course Learning Outcomes for Unit III
Upon completion of this unit, students should be able to:
1. Explain the muscular contractile system.
2. Explain the types of muscular work.
3. Discuss the types of muscle contractions.
4. Discuss the measurements of muscular strength.
5. Discuss the anthropometric design principles.
6. Define the terms used in anthropometric measurements.
7. Analyze the procedure for design using anthropometric data.
Unit Lesson
This unit focuses on muscular work, nervous control of movements, and
anthropometry. The first chapter of the unit describes the functionality,
relationship, and elements of the integrated roles of the musculoskeletal and
nervous systems. Understanding the work of these systems is critical for safety
professionals to help prevent musculoskeletal disorders in workplaces.
Actin and myosin play the most important role in muscular contraction, and the
mechanism of contraction is explained and shown in Figure 4.1. In the muscle
contraction process, the myosin heads protrude from the thick filaments and
form a cross bridge with the actin. The chapter also explains the method to
control the mechanism of contraction and the energy for contraction; glucose is
the main energy supply, and oxygen plays an important role in energy
production. Reflexes and energy transformation are also briefly explained.
Muscular work can be categorized as static muscle work or dynamic muscle
work. While dynamic work allows the flow of nutrients and oxygen to the muscles
during the task, static work does not allow the flow to refresh the muscular
system, as discussed in the chapter. Examples of static work are carrying a box
manually and painting a wall with the arms above the shoulders. Injuries caused
by extended static work include arthritis, inflammation of the tendons, symptoms
of arthrosis, muscle spasms, and intervertebral disc troubles. Thus, the duration
of static work should be minimized and work breaks should be provided to
reduce muscular fatigue. An isometric contraction is a static contraction. Another
type of muscle contraction is an isotonic contraction, in which an equal amount
of tension develops in the muscle throughout the exercise; some examples are
push-ups and lifting weights.
The most commonly used methods to measure human muscular strengths are
isometric, dynamic, and psychophysical tests. An Isometric strength test is
widely used in research as it is comparatively easy to measure and to know the
distribution of the static strengths of the subjects. However, a primary criticism of
isometric strength tests is that these static tests are not compatible with most
task performance. On the other hand, the psychophysical method is a dynamic
test, which is one of the advantages of the method. In addition, the
Reading
Assignment
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This presentation is about how organising is an impotant function in creating sound Organisation Structure. It compares the merits and demerits of various organisation structures.
This presentation is about various Forms of Business Organisations and their features, merits and demerits. It also guides an entrepreuner on how to make a choice among various forms of Business Organisations.
This Article on WORK STUDY covers Part-I , UNIT-II of Industrial Administration and Financial Mangement Syllabus of BE 4/4(EEE/EIE/ECE) of Osmania University
2. SUBDIVISIONS OF PRINCIPLES OF MOTION ECONOMY
Principles of motion economy will be presented
under the following three subdivisions:
1) Principles of motion economy as related to
the human body.
2) Principles of motion economy as related to
the arrangement of the place.
3) Principles of motion economy as related to
the design of tools and equipment.
3. PRINCIPLES OF MOTION ECONOMY RELATED TO USE
OF HUMAN BODY
Principle of m otion economy as related to t he u se of t he human body.
1 . T he two hands should begin as well as complete
t heir m otions at t he same t ime.
2. T he two hands should not be idle at t he same t ime
except du ring rest period.
3. Motions of t he arms should be m ade in opposite
and symmetrical directions and should be m ade
simultaneously.
4. Hand and body motions should be confined to the
lowest classification with which it is possible to
per form the work sat isfactorily.
General Classification o f Hand Motions
a. Finger m otions.
b. Motions involving fingers and wrist.
c. Motions involving fingers, wrist, and forearm.
d. Motions involving fingers, wrist, forearm, and u pper
arm.
e. Motions involving fingers, wrist, forearm, u pper arm and shoulder.
4. PRINCIPLES OF MOTIOM ECONOMY RELATED TO USE
OF HUMAN BODY
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 cur ved motions of the hands are
preferable to straight line motion 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 as close together as
possible.
- Eye Movements
- Eye – Hand Coordination
5. EXAMPLE ON USE OF HUMAN BODY USING MOTION
PICTURE FILM
Print of motion picture film showing eye and hand motions of
the operator assembling small parts.
11. PRINCIPLES RELATED TO ARRANGEMENT OF
WORKPLACE
Principle of motion economy as related to the
work place.
1 . There should be a definite and fixed place for all tools
and materials.
2. Tools, materials, and controls should be located close
to the point of use.
- Normal working area
- Maximum working area
19. BOLT AND WASHER ASSEMBLY (OLD METHOD)
A - Special rubber washer
B – Flat steel washer
C – Lock washer
D – 3/8 x 1 inch bolt
Containers with bolts,
lock washers, steel
washers, and rubber
washers arrange on
the top of the bench.
23. PRINCIPLES OF MOTION ECONOMY RELATED TO
ARRANGEMENT OF WORKPLACE
7. The height of the work place and the chair should
preferably by arranged so that alternate sitting and
standing at work are easily possible .
Sitting-standing work place Sitting-standing work place
for males. for females.
24. PRINCIPLES OF MOTION ECONOMY RELATED TO
ARRANGEMENT OF WORKPLACE
8. A chair of the type and height to permit good posture
should be provided for every worker.
Sitting work place for males. Sitting work place for females.