ergonomics analysis- ppt by-shibam sarbswa

Ergonomics Analysis

A project report by : Shibam Sarbswa

Under the Mentorship of : Akash Joshi Deputy Manager

Maruti Suzuki India Limited

Ergonomics - Ergonomics means the natural laws governing human work

“ergon” = work“nomos” = natural laws

Ergonomics

ERGONOMICS

Why Ergonomics ?

Enhancing the certain human values including improved safety, reduced fatigue & reduced stress.

Less cases of unplanned absenteeism. Better employee morale leading to quality

improvement. Enhancing the efficiency and effectiveness

with which the work and other activities are carried out.

thetool

theworkstation

the task(job content & context)

theorganization

theenvironment

ERGONOMICS

Major organizations involved

The Institute of Ergonomics and Human Factors International Ergonomics Association (IEA) National Institute of Industrial Engineering

(NITIE) Operational Health & Safety Advisory services

(OHSAS), British National Institute for Occupational Safety &

Health (NIOSH), USA

Dispensary study

50 to 60 cases of muscular back pain is reported every month in our Dispensary.

Ergonomics Improvement

• The operator had to cover a larger distance to pick up door glass for YE3

• A platform has been provided in between with the door glasses of YE3 & YR9 placed on opposite sides now

AfterBeforePlatfor

m

6 Steps per Cycle Saved.

Benefits

5R

4L 6L

4R

5L

6R 5R

4L 6L

4R

5L

6R

Steering Column fitment

The operator has to Twist Stretch & Bend

Total Cycles/Shift – 400

Thus the operator has to repeat the Bend, twist, stretch activity 400 times a day.

Before:

No Twisting No

stretching Lesser

Bending

After:

Ergonomic evaluation of production lines is needed to identify such high fatigue areas.

Case Study - Rear Axle(K10)

Weight = 9kg Number of cars per shift = 350 (8 hour

shift) Number of lifts per minute = 350/(8 x

60)=0.729

Before

After

5

20

41

40

130

5Initial Condition Final

Condition

Posture Analysis

Body Postures

Neck Position

Trunk Position

Legs Position

Upper Arm

Position

Lower Arm

PositionWrist

Position

REBA-Rapid Entire Body AssessmentREBA Employee Assessment

Worksheet is used for calculating type of risk.

REBA

REBA Sheet helps in Identifying the Risk

Types of Risk

Negligible Risk • Score=1

Low risk • Score=2or3• change may be needed

Medium Risk

• Score=4 to 7• further investigation, change soon

High Risk

• Score=8 to 10• investigate and implement change

Very High Risk

• Score=11+• implement change

Fatigue prone activity using REBA

The assessment in case of REBA is done using the REBA sheet where we observe the posture and give the scores.

Based on the final score, the activity can be categorized.

Forceful exertion

Risk Factor: ERGONOMICS

Risk Factor: ERGONOMICS

Repetitive movement

Risk Factor: ERGONOMICS

Extreme range of motion

Risk Factor: ERGONOMICS

Awkward posture

UtilitiesOne Area one Improvement DriveErgonomic risk assessment of

stationsOperator step reduction ActivitiesInstallation of synchronic trolleysOperator cross movement reductionSequence supply of componentsMaterial Location ImprovementWork balancing.

Advantages of Ergonomics

Installation of synchronic trolleys Operator cross movement

reductionSequence supply of componentsMaterial Location ImprovementWork balancing

Benefits to the workers Enhanced worker motivation and job

satisfaction Added problem-solving capacity Greater acceptance of change Greater knowledge of work and

organization Reduces injuries and illnesses Improves employee morale and

productivity Reduces workers’ compensation costs

“I still need more healthy rest in order to work at my best.

My health is the main capital I have and I want to administer

it intelligently.”- Ernest HemmingwayNobel Prize winner for

literature

Thank you!!!!