Abstract
The aim of the present study was to formulate the ergonomic design problem with considering the response to individual differences. Ergonomic design strategies are classified into three categories: a) design for average participant (Strategy A), b) design for weak participant (Strategy B), and c) design for divided clusters (Strategy C). The regret was defined as the difference from the objective function value of optimum solution for each participant. Then, the strategy A, B, and C were formulated as the minimization of the average regret, maximum regret, and average regret for each divided cluster. The proposed method was applied to the design problem of cylindrical diameter for power grip. The cylindrical diameter is the only design variable, and the average pressure and the coefficient of variance were objective functions. The result showed the average regret of the strategy C was significantly lower than the other strategies.
