文章摘要
Radial Stiffness Measuring Method of Rubber Joint for Rolling Stock Based on Regression Analysis
Received:December 27, 2020  Revised:December 27, 2020
DOI：10.12136/j.issn.1000-890X.2021.07.0538
Key Words: rolling stock；rubber joint；radial stiffness；stiffness measuring；regression analysis；linear correlation
Author NameAffiliationE-mail
LIANG Jianyao* Zhuzhou Times New Material Technology Co., Ltd liangjianyao@csrzic.com 
WANG Xili Zhuzhou Times New Material Technology Co., Ltd  
DENG Mengjun Zhuzhou Times New Material Technology Co., Ltd  
LIN Sheng Zhuzhou Times New Material Technology Co., Ltd  
ZHAI Jiqin Zhuzhou Times New Material Technology Co., Ltd  
YANG Fang Zhuzhou Times New Material Technology Co., Ltd  
SU Zhimin Zhuzhou Times New Material Technology Co., Ltd  
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Abstract:
      Through data analysis，it was found that there were linear correlations between the radial stiffness（with sleeve tooling） and the axial stiffness（without sleeve tooling） of the integral rubber joint for rolling stock，and between the radial stiffness with sleeve tooling and the radial stiffness without sleeve tooling of the integral rubber joint. Through regression analysis，the regression equations between the radial stiffness and the axial stiffness of the integral rubber joint，and the radial stiffness（with sleeve tooling） and the radial stiffness（without sleeve tooling） of the integral rubber joint were obtained. The radial stiffness and press fitting stiffness of the radial preloaded rubber joint and axial preloaded rubber joint were also linearly related，and the radial stiffness of the rubber joint could be calculated by the press fitting stiffness through the regression equations. This regression analysis method could improve the measuring efficiency of the radial stiffness of the rubber joint，and the fitting deviation was within ±5%.
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