| 飞船电源系统太阳电池银焊点的热应力分析 |
| |
| 引用本文： | 张雨晗,张淑杰,包轶颖.飞船电源系统太阳电池银焊点的热应力分析[J].航天器环境工程,2012,29(6):655-657. |
| |
| 作者姓名： | 张雨晗 张淑杰 包轶颖 |
| |
| 作者单位： | 1.1. 同济大学 航空航天与力学学院，上海 200092；2. 上海宇航系统工程研究所，上海 201108 |
| |
| 基金项目： | 中央高校基本科研业务费专项资金 |
| |
| 摘 要： | 太阳电池阵是航天器电源系统的重要结构部件。文章以某飞船的太阳电池板为研究对象，根据其在热真空可靠性试验中的温度条件，对太阳电池与互连片连接处的银焊点部位进行了热应力和热变形仿真计算，并与试验现象进行了对比分析，证实了交替变化的高低温会导致银焊点的虚接触，从而使太阳电池阵不能正常工作。该研究成果可为航天器太阳电池银焊点的连接设计和焊点的检验提供参考。
|
| 关 键 词： | 航天器 太阳电池 互连片 银焊点 热变形 热应力 |
| 收稿时间： | 6/9/2012 12:00:00 AM |
| 修稿时间： | 2012/11/13 0:00:00 |
Thermal stress at silver welding spot on solar cell of the power system of a spaceship |
| |
| Zhang Yuhan,Zhang Shujie and Bao Yiying.Thermal stress at silver welding spot on solar cell of the power system of a spaceship[J].Spacecraft Environment Engineering,2012,29(6):655-657. |
| |
| Authors: | Zhang Yuhan Zhang Shujie and Bao Yiying |
| |
| Institution: | 1.1. School of Aerospace and Applied Mechanics, Tongji University, Shanghai 200092, China |
| |
| Abstract: | As an important part of the power system of a spacecraft, the solar cell array is studied in this paper based on the temperature conditions of the thermal vacuum reliability test. The thermal stress and the thermal deformation at the silver welding spot between the solar cell and the inter-link chip are analyzed. The results show that the thermal cycling can make the silver welding spots separate or contact, so the solar array can not work normally. The results provide some insight for the design and test for welding spot of a solar array. |
| |
| Keywords: | spacecraft solar cell inter-link chip silver welding spot thermal deformation thermal stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《航天器环境工程》浏览原始摘要信息 |
| 点击此处可从《航天器环境工程》下载免费的PDF全文 |
