对3种典型的热塑性聚酯弹性体TPEE轨下垫板结构进行了比较分析,并结合材料的性能特点,分析了3种典型结构演变思路和不同用途,初步探讨TPEE轨下垫板的结构设计思路。 The structures of three typical thermoplastic TPEE underplates were compared and analyzed. Based on the performance characteristics of the materials, three kinds of typical structural evolution ideas and different uses were analyzed, and the structural design of TPEE underplating was discussed Ideas.