| Influence of Low Temperature and Frequency on Stiffness of Rubber Elastic Components |
| Received:July 16, 2019 Revised:July 16, 2019 |
| DOI：10.12136/j.issn.1000-890X.2020.05.0323 |
| Key Words: rubber elastic components；low temperature；frequency；static stiffness；dynamic stiffness |
| Author Name | Affiliation | E-mail | | PANG Feng | China National Accreditation Center for Conformity Assessment | | | PENG Liqun* | Zhuzhou Times New Material Technology Co. ， Ltd
National Rail Transport Polymer Materials and Product Quality Supervision and Inspection Center（Hunan） | pengliqun8805@163.com | | LIN Dawen | Zhuzhou Times New Material Technology Co. ， Ltd
National Rail Transport Polymer Materials and Product Quality Supervision and Inspection Center（Hunan） | | | WANG Yeqing | Zhuzhou Times New Material Technology Co. ， Ltd
National Rail Transport Polymer Materials and Product Quality Supervision and Inspection Center（Hunan） | |
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| Abstract: |
| The test principle of the static and dynamic stiffness of rubber elastic components was introduced，and a new type of low temperature stiffness test fixture was designed to carry out static and modal tests on rubber elastic components. The effect of temperature on the static and dynamic stiffness of rubber elastic components was investigated，and the effect of frequency on the dynamic stiffness was also studied.The results showed that the structure of the test fixture met the test requirements. When the temperature decreased，the static and dynamic stiffness of rubber elastic components increased. When the frequency increased，the dynamic stiffness of rubber elastic components increased in the low frequency band，and beyond certain frequency the dynamic stiffness decreased and finally tended to be stable. The turning point of the dynamic stiffness-frequency curve moved toward the low frequency direction when the temperature decreased beyond －40 ℃. |
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