| 罗政刚,薛志远,周 微,徐云慧,王再学.丁腈橡胶-Q235碳素结构钢复合阻尼材料的模态响应分析[J].橡胶科技,2024,22(12):0672-0677. |
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| 丁腈橡胶-Q235碳素结构钢复合阻尼材料的模态响应分析 |
| Modal Response Analysis of Nitrile Rubber-Q235 Carbon Structural Steel Composite Damping Material |
| 投稿时间：2024-10-08 修订日期：2024-10-08 |
| DOI：10.12137/j.issn.2095-5448.2024.12.0672 |
| 中文关键词: 丁腈橡胶 Q235碳素结构钢 复合阻尼材料 固有频率 模态响应 有限元 |
| 英文关键词: NBR Q235 carbon structural steel composite damping material natural frequency modal response finite element |
| 基金项目:江苏省功能弹性体材料制备与应用工程研究中心建设项目（202151） |
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| 中文摘要: |
| 基于有限元数值模拟软件建立丁腈橡胶-Q235碳素结构钢复合阻尼材料几何模型，利用Mooney-Rivlin本构模型进行中低阶模态分析，分析非完全嵌入（有相对滑移）和完全嵌入（无相对滑移）下不同厚度橡胶层的固有频率和形变状态。结果表明：橡胶层在完全嵌入状态下的固有频率较非完全嵌入状态下增大；非完全嵌入状态下橡胶层的模态振型以弯曲为主，完全嵌入状态下的模态振型以径向偏移和倾斜为主；复合阻尼材料的橡胶层低阶模态响应下的形变量随着橡胶层厚度的增大而减小。 |
| 英文摘要: |
| The geometric model of nitrile rubber-Q235 carbon structural steel composite damping material was established based on finite element numerical simulation software，the Mooney Rivlin constitutive model was used for mid and low order modal analysis to analyze the natural frequencies and deformation states of rubber layers with different thicknesses under incomplete embedding（with relative slip） and complete embedding（without relative sli）.The results showed that the natural frequency of rubber layer increased in the fully embedded state compared to the non fully embedded state.The modal vibration mode of rubber layer in the non fully embedded state was mainly bending，while the modal vibration mode in the fully embedded state was mainly radial displacement and inclination.The deformation of rubber layer under low order modal response of composite damping material decreased with the increase of rubber layer thickness. |
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