人間工学
Online ISSN : 1884-2844
Print ISSN : 0549-4974
ISSN-L : 0549-4974
原著
Optimal Product Design Method with Digital Human Modeling for Physical Workload Reduction:
A Case Study Illustrating its Application to Handrail Position Design
Takanori CHIHARANaoko FUKUCHIAkihiko SEO
著者情報
ジャーナル フリー

2017 年 53 巻 2 号 p. 25-35

詳細
抄録

Physical workload reduction is a significant factor in product design. However, experimental bioinstrumentation measurements involve substantial time and costs. This study proposed a simulation based ergonomic design method with digital human modeling (DHM) to accomplish efficient ergonomic product design. DHM simulation was applied to evaluate the joint moment ratios (JMRs). The product design for physical workload reduction was formulated as a minimization of the average and maximum JMRs to determine the optimal solution. The proposed method was applied to a problem of designing the forward distance of a handrail to support the sit-to-stand (STS) movement. The STS motion, the force exerted on the handrail, and the subjective perceived workload were measured for nine subjects. The STS motions and exerted force of the DHMs were predicted from the measured data, and physical workload simulation was performed with multiple DHMs to reflect anthropometric diversity. The response surfaces of the average and maximum JMRs were predicted as functions of the forward distance, and Pareto frontiers of each DHM condition were determined. The findings revealed that there were no trade-offs between the average and maximum JMRs, and that the optimal forward distance was in the range of 345-400 mm.

著者関連情報
© 2017 Japan Ergonomics Society
前の記事 次の記事
feedback
Top