Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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The Study on Selection of human Model for Controllability Evaluation According to Working Postures

  • Kim, Do-Hoon (Department of Industrial and Management Engineering, Korea University) ;
  • Park, Sung-Joon (Department of Industrial and Management Engineering, Namseoul University) ;
  • Lim, Young-Jae (Department of Industrial and Management Engineering, Korea University) ;
  • Jung, Eui-S. (Department of Industrial and Management Engineering, Korea University)
  • Received : 2011.11.16
  • Accepted : 2011.12.15
  • Published : 2012.06.30
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Abstract

The purpose of this study was to suggest appropriate human model for ergonomic evaluation considering working postures on 3D space. Background: Traditionally extreme design rules have been widely utilized at the stage of designing products. Body size of 5th percentile and 95th percentile in stature has been generally selected for controllability and clearance evaluation, respectively. However, these rules had limitations in reflecting working posture in ergonomic evaluation. Method: In order to define working posture on 3D space, not only sagittal plane but also lateral plane was considered. Kinematic linkage body model was utilized for representation of working posture. By utilizing the anthropometric data of 2,836 South Korean male populations, the point cloud for end points of linkage models was derived. The individuals who were lacking in certain controllability were selected as human models for the evaluation. Result: In case of standing posture it was found that conventional approach is proper for all controllability evaluations. Contrary to standing posture, tall people had less controllability on control location below shoulder point in sitting posture. Conclusion: From the derived proper range on controllability, ergonomic evaluation rule was suggested according to working posture especially in standing and sitting. Application: The results of the study are expected to aid in selection of appropriate human model for ergonomic evaluation and to improve the usability of products and work space.

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References

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