複雑な形状を有する物体の接触問題への一つのアプローチ

抄録

A modeling method for the contact problem between a wheel with flanges and a rail is presented as one of the example of the analysis methodology for objects with complex configuration. The contact configuration between a wheel and a rail is identified by geometric relationships between contact judging markers on the wheel and the rail, then the contact force is calculated considering the variety of the stiffness, damping and frictional property of the contact surface. As applications of proposed method, a free fall simulation of a wheel, and a seismic response simulation for a flexible structure settled on the rail are conducted numerically and are discussed.