Optimum Design on Suspension Joint Parts of GFRP Composite Bogie Frame with H-shaped Side Beams for Urban Railway Trains

초록

In order to optimize bolt locations for suspension joint parts of a GFRP composite bogie frame. the optimum design was done. The structural integrity of a composite bogie frame was evaluated under three main in-service loads according to JIS E 4207. The optimum design was conducted using a sub-modeling technique, a sub-problem approximation method, and batch processing codes programmed hp ANSYS Parametric Design Language (APDL). The results showed that the optimum design using the sub-modeling technique was able to obtain more accurate results by the control of mesh density for the interesting parts, and reduce maximum Von-Mises stress in comparison with initial model.

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