Frequency dependent stiffness and damping of railpads

被引：80

作者：

Fenander, A ^{[1
]}

机构：

[1] CHALMERS UNIV TECHNOL, CHALMERS RAILWAY MECH, S-41296 GOTHENBURG, SWEDEN

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT | 1997年 / 211卷 / 01期

关键词：

railpads; stiffness; damping; measurements; mathematical model; fractional calculus;

D O I：

10.1243/0954409971530897

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The vertical stiffness and damping of studded rubber railpads have been measured, both in a complete track and in a test rig, as functions of frequency under different static preloads. Also, for more compact polymer-based railpads, track measurements were performed. The stiffness of the studded railpads was found to increase strongly with preload, but only weakly with frequency. The loss factor of the studded railpads was found to be nearly independent of preload and to increase only slightly with frequency. A fractional derivative model of the dynamic behaviour of the railpad is proposed.

引用

页码：51 / 62

页数：12

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