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Ergonomics: Principles, Applications, and Measurement Techniques, Lecture notes of Ergonomics

An overview of ergonomics, a multidisciplinary field that focuses on optimizing human-machine interactions. It covers key concepts such as physical and organizational ergonomics, anthropometry, and the use of various measurement devices. The document also includes examples of ergonomic principles applied to different work environments, such as deskwork, seated work, and work with display screen equipment.

Typology: Lecture notes

2023/2024

Uploaded on 11/11/2024

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ERGONOMICS
Ergo: Work
Nomos: Science (Law)
Ergo+nomics : WORKLAW
This name has been found in the UK in 1949. The origin
of the Word is Latin.
Other names:
Human Factor Engineering in USA
Applied Psychology in UK
Biotechnology in Scandinavian countries
Industrial Psychology in Germany
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ERGONOMICS

 Ergo: Work  Nomos: Science (Law)  Ergo+nomics : WORKLAW  This name has been found in the UK in 1949. The origin of the Word is Latin.  Other names:  Human Factor Engineering in USA  Applied Psychology in UK  Biotechnology in Scandinavian countries  Industrial Psychology in Germany

Definition of Ergonomics:

 It’s a multi-disciplinary science, that having regard to the people’s anatomical features, anthropometric characteristics, physiological capacity and tolerances, the influence of all the factors that may occur physical, physiological and psychological strain in industrial work environments, trying to reveal basic laws of system efficiency and human- machine-environment.

Objective of ergonomics

furniture, hand tools, equipment, job requirements workplace environment ........ human dimensions, capabilities limitations expectations ......... Basic principle: Compatibility interfere to environment (^) Observe people

THE MAIN SCIENCES WHICH CONSTITUTES ERGONOMICS

  • Anthropometry
  • Work Physiology and
  • Biomechanics.
  • Other sciences that contribute:
    • Physiology, biology
    • Physics
    • Psychology
    • Information sciences
    • Medicine
    • Statistics
    • Business Methods
    • Design
    • Management Science
    • Business Psychology
    • Sociology
    • Engineering systems

Physical Ergonomics:

It examines the physiological effects in

working environment.

  • Physical Risk Factors
  • Chemical Risk Factors
  • Biological Agents

Organizational and Administrative

Ergonomics:

It deals with administrative issues such

as work and rest hour

  • Business Plans
  • Performance Models
  • Motivation / Work Attendance
  • Administrative Features

Gƶstergeler

Ergonomics involves four key

areas:

 Human characteristics: Height, working positions, perceptions, physical and mental abilities such as decision-making  Human-machine relationship: Displays and controls, information flow, automation  Environmental conditions: Heating, lighting, noise, humidity, vibration etc ...  Other aspects of human activities: Error, mistakes, accidents, safety rules etc ...

ERGONOMICS APPROACH

LIGHTINING NOISE AND VIBRATION DUST, SMOKE AND TOXIC AGENTS ENVIRONMENT HEAT AND HUMIDITY RADIATION EFFECTS HUMAN FACTORS PERSONAL INTELLLIGENCE AND SKILLS WORK LOAD EFFECTS ENERGY CONSUMPTION AND NUTRITION AGE AND GENDER FACTORS SOCIAL ENVIRONMENT EFFECTS PERSONAL ATTRIBUTES LEVEL OF EDUCATION EXPERIENCE CREATIVITY SKILLS JOB ENTHUSIASM PERSONAL HEALTH FOUNDERS FINANCING PROJECTING INSTALLATION AND OPERATION MANAGEMENT CONTROL IMPROVEMENT PRODUCTION MACHINE INSTALLATION OPERATION SUPPLY AND MAINTANANCE IMPROVEMENT RENOVATION CLOSE ENVIRONMENT INDICATORS CONTROLS MACHINE AND HUMAN MECHANICS DIMENSIONAL PROBLEMS POSITIONS AND SITTING GENERAL ENVIRONMENT PERCEPTION WARNING

WORK TIME DECREASES FATIGUE DECREASES ACCIDENTS DECREASES ABSENCES DECREASES CORRUPTION AND WASTE OF MATERIALS DECREASES QUALITY INCREASES PRODUCTIVITY, PROFIT AND REVENUE OF EMPLOYEES INCREASES BENEFITS OF ERGONOMICS APPLICATIONS

SKELETON

ROTATION MOVEMENT

 Internal rotation:

• Adduction

• Extension

• Supination

 External Rotation

• Abduction

• Flexion

• Pronation

MUSCLES

 They are the force arm of the movement system. Bağlantı noktalarına kuvvet tatbik eden tek yönde kasılabilen veya gevşeyerek uzayabilen güçlü yapılardır. It is divided into three:

  • Striated muscle (comprised of fibers)
  • Smooth muscle (autonomic nervous system)
  • The heart muscle (exceptional) (Muscles are connected to the skeletal structure with powerful configurations which are named as TENDON.)

MUSCLES

 Two reasons of forcing the working

muscles :

• Sudden and very strong contractions, hoisting

• Prolonged static work (fatigue in fibers,

increase in biochemicals)