摘要:The research on the mechanical model of rubberspring is one of the hot spots in train dynamics. In order toaccurately calculate the viscoelastic force of the rubberspring, especially the non-hyperelastic forces (NHEF)part, a NHEF model is proposed based on the elliptic approximation method. Furthermore, the calculation formulaof periodic energy consumption is put forward. The NHEFmodel is verified by experiments, and the function λ isconstructed to verify the formula of periodic energy consumption. The calculation results showed that the NHEF modelhad high accuracy in predicting the dynamic and quasi-staticNHEF of rubber spring, the prediction accuracy of shearcondition was better than that of compression condition, andthe accuracy of quasi-static condition was better than that ofdynamic condition; the calculation formula of periodic energy consumption had a good prediction accuracy in allworking conditions.
关键词:train dynamics;rubber spring;non-hyperelasticforces model;elliptic approximation;periodic energy consumption