城轨车辆钩缓装置静密封橡胶元件使用性能预测方法

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中图分类号：U279.1 文献标志码：B doi：10.20213/j. cnki. tdcl.2025.03.012

Abstract：The service performance change rule of rubber components is one of the important contents of study in the rail transit industry.The performance of rubber components has a direct influence on the establishment of repair class and maintenance system of vehicles. The conventional natural ageing method for rubber has the disadvantages of long testing period and insuficient universalityof model. Therefore，the article adopts the accelerated ageing test method based on the Arhenius equation and by testing the performance changes of the static sealing rubber components after ageing at diferent temperatures for different durations， figures out the performance change rule of the rubber components at ambient temperature and compares it with the value measured in actual operation on car. The results show that this method allows to effectively predicts theageing ruleof the static sealing rubber components and thatthe results aredistributed within the theoretical prediction area，which meets the requirements of actual application. Meanwhile，this method can provide reference for predicting the service life of other rubber components.

Key words： coupler and draft gear; rubber; ageing;Arrhenius equation;compression set随着近些年轨道交通行业的快速发展，越来越多 的橡胶元件应用到车辆系统中，并在其中起到吸能、减

振及密封等重要作用[1-3]。（剩余6902字）