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Ergonomic Analysis Presentation Transcript
1.Objective of the presentation
To illustrate that:
for productivity improvement in manufacturing industries, efficiency of worker plays an important role.
productivity of worker greatly depends upon ergonomic design of workstation.
workstation may function with less efficiency, if anthropometry data mismatches with workstation design
To illustrate that:
for productivity improvement in manufacturing industries, efficiency of worker plays an important role.
productivity of worker greatly depends upon ergonomic design of workstation.
workstation may function with less efficiency, if anthropometry data mismatches with workstation design
2.METHODOLOGY ( KEY STEPS)
The study was conducted on a metal part assembly workstation which has high cycle time.
In primary phase study regarding workstation layout, process design and product specification has been carried out.
Further motion study is done for ergonomic study by capturing motion film of assembly process using high definition videorecorder.
Motion film is analysed for each motion element of worker’s body postures and movement of other body members.
Results of motion study revealed various fatigue causing and time consuming factors related to worker and workstation layout.
The study was conducted on a metal part assembly workstation which has high cycle time.
In primary phase study regarding workstation layout, process design and product specification has been carried out.
Further motion study is done for ergonomic study by capturing motion film of assembly process using high definition videorecorder.
Motion film is analysed for each motion element of worker’s body postures and movement of other body members.
Results of motion study revealed various fatigue causing and time consuming factors related to worker and workstation layout.
3.Motion Study
Critical analysis of workstation is done by using motion study.
The purpose of such motion study is to identify and understand motion bottlenecks related to human effort and system.
Recording of motion film is done by using high definition handy-cam in the .MPEG file format.
Motion films in .MPEG format are analysed by using Windows Movie Maker, the inbuilt video editing software from Microsoft in windows operating system at 0.125X running speed.
Critical analysis of workstation is done by using motion study.
The purpose of such motion study is to identify and understand motion bottlenecks related to human effort and system.
Recording of motion film is done by using high definition handy-cam in the .MPEG file format.
Motion films in .MPEG format are analysed by using Windows Movie Maker, the inbuilt video editing software from Microsoft in windows operating system at 0.125X running speed.
4.Conclusions of Study
Natural motions of workers are constrained by poor workstation design and layout. Material handling, tool handling, control system operation have seen significant effect on worker efficiency.
Workers are seen to be unaware of ergonomic principles as body postures and movements are seen to be not following standard work procedure.
Frequent body postures like bending ,twisting, eye movements, lifting have seen in single product assembly though company works for 8 hrs , hence health issues are observed like back pain, shoulder pain , wrist pain , neck pain etc. lead to less efficiency of workers.
Workers are seen to be having discomfort while handling parts as sharp edges and large size of metal parts may lead to fear of injury. Also tool and parts are not supportive for gripping.
Natural motions of workers are constrained by poor workstation design and layout. Material handling, tool handling, control system operation have seen significant effect on worker efficiency.
Workers are seen to be unaware of ergonomic principles as body postures and movements are seen to be not following standard work procedure.
Frequent body postures like bending ,twisting, eye movements, lifting have seen in single product assembly though company works for 8 hrs , hence health issues are observed like back pain, shoulder pain , wrist pain , neck pain etc. lead to less efficiency of workers.
Workers are seen to be having discomfort while handling parts as sharp edges and large size of metal parts may lead to fear of injury. Also tool and parts are not supportive for gripping.
5.Recommendation suggested
Workers must be trained to aware and follow standard work procedure including standard body postures, motion sequences. Training should be given in order to follow standard procedure for tool and material handling.
Modify the workstation layout and design so as to suitable for good body postures and good tool-work piece contact.
Use of low cost mechanical automation assistance can reduce complex tasks and hence reduces fatigue.
Some work must be assigned for foot usage like foot pedal so to avoid muscular stress and cramp to muscles.
Increase comfort situation by implementing healthy environment like air supply system, good lightning system etc.
Workers must be trained to aware and follow standard work procedure including standard body postures, motion sequences. Training should be given in order to follow standard procedure for tool and material handling.
Modify the workstation layout and design so as to suitable for good body postures and good tool-work piece contact.
Use of low cost mechanical automation assistance can reduce complex tasks and hence reduces fatigue.
Some work must be assigned for foot usage like foot pedal so to avoid muscular stress and cramp to muscles.
Increase comfort situation by implementing healthy environment like air supply system, good lightning system etc.
6.References
Deros B.M., Khamis N.K.(2011) “An ergonomics study on assembly line workstation design”. American Journal of Applied Sciences 8(11):1195-1201.
Battini D., Faccio M., (2011), “New methodological framework to improve productivity and ergonomics in assembly system design”,International Journal of industrial ergonomics 41(30-32).
Shikdar A.A., Hadhrami M.A., (2005) “Operator Performance and Satisfaction in an Ergonomically Designed Assembly Workstation”,The Journal of Engineering Research, vol.2 number-1(69-76).
Ulin S.S., Keyserling W.M.,(2004), “Case Studies of Ergonomic Interventions in Automotive Parts Distribution Operations”, Journal of Occupational Rehabilitation,Vol.14,No.4.
Deros B.M., Khamis N.K.(2011) “An ergonomics study on assembly line workstation design”. American Journal of Applied Sciences 8(11):1195-1201.
Battini D., Faccio M., (2011), “New methodological framework to improve productivity and ergonomics in assembly system design”,International Journal of industrial ergonomics 41(30-32).
Shikdar A.A., Hadhrami M.A., (2005) “Operator Performance and Satisfaction in an Ergonomically Designed Assembly Workstation”,The Journal of Engineering Research, vol.2 number-1(69-76).
Ulin S.S., Keyserling W.M.,(2004), “Case Studies of Ergonomic Interventions in Automotive Parts Distribution Operations”, Journal of Occupational Rehabilitation,Vol.14,No.4.
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