铁路货车降压风缸连接管疲劳失效分析

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中图分类号：U270.35 文献标志码：B doi：10. 20213/j.cnki. tdcl. 2025.02.029

Abstract：This paper presents in detail the analysis process for the fatigue evaluation method specified in the FKM standard. The method comprehensively considers materials，component size，design，load，safety factor， and other factors，revises the fatigue verification process of the construction，and ultimately assesses the safety of the structure through utilization. In order to deal with the fatigue failure issue，this paper evaluates the strength at the fatigue failure position by combining finite element method with FKM standard. The analysis results idicate that the utilization degree of the connection position between the air duct and the pressure reducing cylinder surpasses 1，resulting in material failure，which is consistent with the actual failure.

Key words： connecting pipe of pressure reducing cylinder;fatigue failure；FKM standard; finite elemen analysis

铁路货车降压风缸具有调节空重车制动缸压力的作用。（剩余5558字）