| Structure Improvement of Primary Rubber Spring for Rail Vehicles |
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| DOI： |
| Key Words: primary rubber spring；structure improvement；rigidity test；fatigue life |
| Author Name | Affiliation | | WANG Jun | Xiangtan University；Zhuzhou Times New Material Technology Co.，Ltd | | SUN Haiyan | Zhuzhou Times New Material Technology Co.，Ltd | | CHENG Haitao | Zhuzhou Times New Material Technology Co.，Ltd | | TAN Fang | Zhuzhou Times New Material Technology Co.，Ltd | | CHANG Hao | Zhuzhou Times New Material Technology Co.，Ltd | | ZHU Hongji | Xiangtan University |
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| Abstract: |
| The initial structural characteristics and flaws of a primary rubber spring for rail vehicles were analyzed，a structure improvement program to improve stiffness and fatigue properties of initial structure was proposed，and the new structure was obtained by finite element analysis. In the new structure, streamlined profile and smooth transition were applied to reduce the stress concentration on rubber profile. It greatly reduced the strain and effectively extended fatigue life of the product. |
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