A vehicle body, two bogie frames and two wheelsets for each bogie frame are used to describe the railway vehicle model. The system dynamic is modeled using a 38-DOF system including the longitudinal, lateral, vertical, roll, pitch and yaw displacements. A heuristic nonlinear creep model and the elastic rail are used to simulate the wheel-rail contact. Stable movement and the corresponding limit...

ed Fig. 1: Test-case execution M1 Mn ^ TCG input seq. (a) Mi TCG partial input seq. TCGinc ^ M1 Mn input seq. (b) Fig. 2: Test-case generation: (a) monolithic; and (b) incremental Structure. In Section 2 we briefly recall the requirement interfaces modeling language and our incremental test-case generation procedure for such models. Section 3 and 4 present the wheel loader and the railway inter...

Indian Rail transport is one of the major mode of transportation, so it must offer high comfort level for the passengers and the staff. However, the comfort that passengers experience is a highly complex and individual phenomenon. The improvement of passenger comfort while travelling has been the subject of intense interest for many train manufacturers, researchers and companies around the worl...

The shattered rim on railway wheels is increasingly concerned in recent years. Based the failure analysis, mechanism of was revealed. contact stress distribution wheel/rail with inclusions wheel analyzed by ABAQUS. Then field imported into FRANC3D to simulate crack propagation. It found that simulation results were good agreement those obtained experimentally from actual rim, which proves avail...