| 45% SiCp/Al复合材料的微动磨损试验设计与验证 |
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| 引用本文： | 陈立,李志慧,陈国钦,夏振涛,彭效海,刘玉庆,邵红亮. 45% SiCp/Al复合材料的微动磨损试验设计与验证[J]. 宇航学报, 2020, 41(12): 1588-1593. DOI: 10.3873/j.issn.1000-1328.2020.12.013 |
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| 作者姓名： | 陈立 李志慧 陈国钦 夏振涛 彭效海 刘玉庆 邵红亮 |
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| 作者单位： | 1. 上海卫星装备研究所,上海 200240;2. 哈尔滨工业大学金属复合材料与工程研究所,哈尔滨 150080 |
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| 摘 要： | 针对运载发射阶段卫星锁轴机构45%SiCp/Al复合材料与TC4材料之间可能存在的微动摩擦磨损与切向接触刚度问题,本文在调研和仿真分析的基础上,设计等效的扫频微动摩擦磨损试验系统。通过夹持力的标定保证最大影响因素接触应力的一致,采用扫频振动模拟摩擦副受载工况,并对45%SiCp/Al复合材料试件表面形貌进行振前振后检测。试验结果表明,45%SiCp/Al复合材料在较高的形状精度和表面粗糙度条件下,能够承受较大载荷的微动摩擦,摩擦副结合面具有良好的切向接触刚度。
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| 关 键 词： | 45%SiCp/Al 微动磨损 扫频 切向接触刚度, |
| 收稿时间： | 2019-11-06 |
Experiment Design and Verification of Fretting Wear of 45% SiCp/AlComposites |
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| CHEN Li,LI Zhi hui,CHEN Guo qin,XIA Zhen tao,PENG Xiao hai,LIU Yu qing,SHAO Hong liang. Experiment Design and Verification of Fretting Wear of 45% SiCp/AlComposites[J]. Journal of Astronautics, 2020, 41(12): 1588-1593. DOI: 10.3873/j.issn.1000-1328.2020.12.013 |
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| Authors: | CHEN Li LI Zhi hui CHEN Guo qin XIA Zhen tao PENG Xiao hai LIU Yu qing SHAO Hong liang |
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| Affiliation: | 1. Shanghai Institute of Satellite Equipment, Shanghai200240,China;2. Institute of Metal Matrix Composite Science and Engineering,Harbin Institute of Technology, Harbin 150080,China |
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| Abstract: | In order to verify the potential problem of frettingwear and tangential contact stiffness between 45%SiCp/Al composites and TC4 for a satellite locking mechanism duringlaunch, an equivalent sweep frequency fretting weartest system is designed based on investigation and simulation in this paper. Toensure the consistency of major factor contact stress,the holding force is calibrated firstly; the load condition of friction pair issimulated by sweep vibration, and the surface measurement of 45%SiCp/Al test sample is carried out before andafter vibration experiments. The experimental result shows 45%SiCp/Al can bear relatively large loadfretting wear with higher shape precision and surface roughness, and the jointsurface of friction pair has good tangential contact stiffness. |
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