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对沙漏簧在地铁、轻轨车辆上使用的优点做了介绍。分析了沙漏簧的结构特点和垂向刚度的非线性特性。采用试验测试和有限元分析相结合的方法对沙漏簧的垂向失稳特性进行了探讨。
The sandwiched spring on the subway, the advantages of light rail vehicles made a presentation. The structural characteristics of the hourglass spring and the nonlinear characteristics of the vertical stiffness are analyzed. The vertical instability of hourglass spring is discussed by the combination of test and finite element analysis.