| 空间粉尘对航天器高温热管撞击效应的研究 |
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| 引用本文： | 白羽,杨德庄,叶铸玉,Н.Д.Сёмкин.空间粉尘对航天器高温热管撞击效应的研究[J].材料科学与工艺,2005,13(5):513-515. |
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| 作者姓名： | 白羽 杨德庄 叶铸玉 Н.Д.Сёмкин |
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| 作者单位： | 哈尔滨工业大学,空间材料与环境工程实验室,黑龙江,哈尔滨,15000l;Самарскнй Государственый Аэрокосмический Университет, Самарский,130086 |
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| 摘 要： | 本文利用爆炸式和电磁式加速器模拟研究空间粉尘粒子对高温热管的碰撞损伤效应.研究表明,微米级粉尘粒子难以击穿航天器高温热管管壁,但对热管表面的热控涂层光学性能变化有较大影响.亚毫米级粉尘粒子取决于速度的不同,高温热管由表面热控涂层光学性能下降一直到被击穿发生载热体的泄漏现象.针对高温热管在高速粉尘粒子撞击下的运行密封性和辐射功率等问题进行了试验研究及理论分析.测量结果表明,高温热管在工作温度T=900K时,被粉尘粒子击穿的速度由常温下的5.3 km/s降为4.8 km/s.
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| 关 键 词： | 空间粉尘 高温热管 高速撞击 地面模拟 |
| 文章编号： | 1005-0299(2005)05-0513-03 |
| 收稿时间： | 2003-10-20 |
| 修稿时间： | 2003年10月20 |
Effect of space dust impact on high temperature thermal pipes for spacecraft |
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| BAI Yu,YANG De-zhuang,YE Zhu-yu,H. D. Semkin.Effect of space dust impact on high temperature thermal pipes for spacecraft[J].Materials Science and Technology,2005,13(5):513-515. |
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| Authors: | BAI Yu YANG De-zhuang YE Zhu-yu H D Semkin |
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| Affiliation: | 1. Space Materials and Environment Engineering Lab, Harbin Institute of Technology, Harbin 150001, China; 2. Samara State Aerospace University,Samara 130086, Russia |
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| Abstract: | Under the space dust environment,liquid metal heat pipe in spacecraft suffered from the different damage degrees,and the airtight ness and radiated power of liquid metal heat pipe were studied with high speed dust ramming.The space dust ramming on liquid metal heat pipe was simulated on the explosion and electromagnetic accelerator.The experimental results show the phenomena appear in succession from optical property duration of surface thermal control coating to breakdown and leak of heating medium,which are dependence on the vacuity of space dust.Theoretical calculations show that the critical breakdown value of space dust decrease from 5.3km/s to 4.8km/s at work temperature of liquid metal heat pipe T=900 K. |
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| Keywords: | space dust liquid metal heat pipe high speed ram ground -based simulation |
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