| 硅橡胶圆柱表面与光滑表面接触特性研究 |
| Contact characteristics between silicone rubberand smooth surface |
| 投稿时间：2016-08-25 修订日期：2016-08-25 |
| DOI： |
| 中文关键词: 橡胶 接触特性 光滑表面 Hertz理论 |
| 英文关键词: rubber contact characteristics smooth surface Hertz theory |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目）;山东省自然科学基金青年基金 |
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| 中文摘要: |
| 硅橡胶作为一种性能优越的密封材料,在很多领域广泛应用,而接触特性与密封性能关系密切。本文采用理论分析与实验研究相结合的方式来研究硅橡胶圆柱件与光滑表面的接触特性,重点分析压缩过程中接触压力及接触面积的变化规律。基于Hertz理论,得到接触压力以及接触面积的表达式；采用橡胶力学特性测试平台对硅橡胶圆柱件进行压缩实验,得到实际接触面积和接触压力。结果表明,接触面积和接触压力均随压缩量的增加而增加；相同压缩量下,材料的弹性模量对接触面积几乎没有影响,而接触压力与弹性模量成正相关。理论分析与实验结果具有很好的一致性,为密封件的设计和使用提供参考和依据。 |
| 英文摘要: |
| Silicone rubber is widely used as sealing material in many fields due to its excellent properties, and the sealing performance is closely related to contact characteristics. In this paper, both theoretical and experimental methods are used to study the contact characteristics between silicone rubber and smooth surface, focusing on revealing the variation of contact pressure and contact area during the compression process. The mathematical expressions of contact pressure and contact area are obtained based on Hertz theory, and then the compression test of silicone rubber is carried out used the rubber mechanical properties testing platform. The results show that the contact area and contact pressure increase with the increase of compression. Under the same compression, the elastic modulus of silicone rubber has little effect on the contact area, while contact pressure and elastic modulus are positively correlated. The theoretical results are in good agreement with the experimental conclusions, which provides reference for the seal design. |
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