120型控制阀橡胶件

Rubber Parts on Control Valve Type 120

介绍了１２０阀橡胶件的基本性能，机械、物理性能等。还提出了使用等注意事项。

This paper presents a theoretical analysis of the mechanism of the carbody structure elastic plastic deformation brought about by train impact,derives successfully the model of train impact dynamics by applying the theory of dynamics of multi particle system and equation of Lagrange,and establishes the model of dynamics of the carbody structure in the light of finite element method,thus laying a theoretical foundation for the research both in rules of a train in the course of impacting and in dynamic responses of the carbody structure.