Research on the Simulation of Wheelset Response Characteristic Identification of Railway Fastener Loosening

Figure 6

Coupling mode: (a) wheel (blue), hertz contract (green), virtual rail (red), constraint and force element (purple), move marker (yellow). (b) There is a motor vehicle with two bogies in the coupling model. (a) Wheel-rail coupling model. (b) Vehicle-track rigid-flexible coupling model.

(a)

(b)