Effects of friction variability on isolation performance of rolling-spring systems

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• 作者：Biao Wei 魏标 ; Peng Wang 王鹏 ; Tian-han Yang 杨添洿/a>…
• 刊名：Journal of Central South University
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：23
• 期：1
• 页码：233-239
• 全文大小：1,196 KB
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• 作者单位：Biao Wei 魏标 (1) (2)
  Peng Wang 王鹏 (1)
  Tian-han Yang 杨添涵 (1)
  Gong-lian Dai 戴公连 (1) (2)
  Li-zhong Jiang 蒋丽忠 (1) (2)
  Ying Wen 文颖 (1)
  
  1. School of Civil Engineering, Central South University, Changsha, 410075, China
  2. National Engineering Laboratory for High Speed Railway Construction, Changsha, 410004, China
  
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Metallic Materials
  Chinese Library of Science
  
• 出版者：Central South University, co-published with Springer
• ISSN：2227-5223

文摘

By taking a rolling-spring isolation system as the study object, the effects of the non-uniform distribution of rolling friction coefficient on its isolation performance were analyzed by a compiled computer program. The results show that the errors associated with the structural maximum relative displacement, acceleration and residual displacement due to ignoring the friction variability sequentially grow. This rule is weakened by the spring action, however, the unreasonable spring constant will cause sympathetic vibration. Under the condition of large friction variability, in the calculation of the structural maximum relative displacement and acceleration, the friction variability should be considered. When the structural residual displacement is concerned, the variability of rolling friction coefficient should be fully considered regardless of the friction variability.