铁道科学与工程学报2016，Vol.13Issue(8)：1492-1498,7.
地铁浮置板用钢弹簧隔振器力学特性试验研究
Experi mental study on mechanical characteristics of the subway-using steel spring vibration isolator
摘要
Abstract
Stiffness and damping of steel spring vibration isolator are important parameters which have significant influence on vibration damping performance of floating slab track structure.In order to clarify the mechanical characteristic of steel spring vibration isolator,the experimental study was conducted by using electro-hydraulic servo fatigue machine in this paper.The influence of loading frequency,the load amplitudes and accumulated times of fatigue loading on the stiffness of steel spring vibration isolator and damping factor were studied.The re-sults show as follows:When the load amplitude is constant,the dynamic stiffness and the damping factor increase with increasing of loading frequency.When the loading frequency is constant,the dynamic stiffness and damping factor of vibration isolator decrease with increasing of load amplitudes.The dynamic stiffness and the damping factor decreases gradually with increasing the number of fatigue loading.The influence of loading frequency,load amplitudes and the accumulated times of fatigue loading on the characteristics of steel spring vibration isolator pa-rameters can be fitted into a polynomial relationship,respectively.关键词
钢弹簧隔振器/动刚度/损耗因子/加载频率/载荷幅值Key words
steel spring vibration isolator/dynamic stiffness/damping factor/loading frequency/load ampli-tudes分类
交通工程引用本文复制引用
何庆烈,朱胜阳,蔡成标,张嘉伟..地铁浮置板用钢弹簧隔振器力学特性试验研究[J].铁道科学与工程学报,2016,13(8):1492-1498,7.基金项目
国家重点基础研究发展计划（973计划）项目（2013CB036202）；中央高校基本科研业务费资助项目（2682015ZD12）；西南交通大学研究生创新实验实践项目 （）
