輪軌摩擦副硬度比的最佳化

Article is devoted to one of the most actual problems - to definition of the rational hardness ratio of friction pair “wheel-rail”. The mathematical models of wear process of wheel and rail are developed considering the variations of motion speed of car, load in operation, and hardness ratio. Results of research on wear resistance of pair “wheel-rail” are presented. Recommendations on the choice of the optimal hardness ratio of wheel material and rail are given. 本文致力於解決當前最迫切的問題之一--確定車輪-軌道摩擦副合理的硬度比。建立了考慮車輛運行速度、運行載荷以及硬度比變化的車輪和軌道磨損過程數學模型。介紹了車輪-軌道摩擦副耐磨性研究結果 並就車輪和軌道材料最佳硬度比的選擇提出了建議。