Abstract
In designing railway vehicles, designers decide new parameters for the planned vehicle with referring parameters of existing vehicle. But it is difficult to find more suitable parameters that are far from those of the existing vehicle even if they are feasible. In this research, we use a multiobjective optimization method with various evaluate items to solve this problem. The target is the lateral vehicle dynamics (sham half body on a test bench). We report that more suitable parameter search is possible than by the usual method when the multiobjective optimization method is applied.
