| 微小卫星解锁分离装置主结构设计分析及优化 |
| |
| 引用本文： | 陈 靖,张 翔,陈卫东,史瑾文. 微小卫星解锁分离装置主结构设计分析及优化[J]. 航天器环境工程, 2012, 29(6): 681-686 |
| |
| 作者姓名： | 陈 靖 张 翔 陈卫东 史瑾文 |
| |
| 作者单位： | 1.1. 南京航空航天大学 机电学院，南京 210016；2. 南京航空航天大学 高新技术研究院，南京 210016；3. 中国空间技术研究院，北京 100094 |
| |
| 基金项目： | 南京航空航天大学某型微小卫星研制项目 |
| |
| 摘 要： | 文章介绍了某小卫星包带式星箭解锁分离装置初样产品的设计方案，建立了该装置的有限元模型，并通过轴向压缩静力试验验证了该模型的有效性。卫星用质心处的集中质量点代替，对解锁分离装置进行了模态与静力分析，验证了其主结构设计的合理性，同时还具有较高的安全裕度和可优化空间。以卫星总质量为目标函数，解锁分离装置主结构各构件的壁厚为设计变量，并以初样产品的横向、轴向和扭转的基频以及其主结构强度满足设计要求为约束条件，进行了灵敏度分析和优化设计，优化后的解锁分离装置总质量减少了1.5 kg。
|
| 关 键 词： | 微小卫星；解锁分离装置；有限元模型；灵敏度分析；设计优化 |
| 收稿时间： | 2012-06-12 |
| 修稿时间： | 2012-06-29 |
Main structural design analysis and optimization of connection and separation mechanism of minisatellite |
| |
| Chen Jing,Zhang Xiang,Chen Weidong and Shi Jinwen. Main structural design analysis and optimization of connection and separation mechanism of minisatellite[J]. Spacecraft Environment Engineering, 2012, 29(6): 681-686 |
| |
| Authors: | Chen Jing Zhang Xiang Chen Weidong Shi Jinwen |
| |
| Affiliation: | 1.1. College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
| |
| Abstract: | This paper presents the initial design scheme of a clamp band system between the minisatellite and the launch vehicle. The finite element model （FEM） of this product is built. By performing an axial compression test, the validity of the finite element model is verified. After that, replacing the satellite with a concentrated mass point at the center of the mass, the rationality of the main structure design is validated through the modal analysis and the static analysis. It is shown that the structure has a large margin of safety and a potential for optimization. The sensitivity analysis and the design optimization are carried out by using the total mass of the satellite as the objective function, the component＇s thicknesses of the main structure as the design variables, the natural frequencies in the lateral, the longitudinal and the torsional directions keeping unchanged and the strength of the main structure meeting the design requirements as constraints. The optimization reduces the total mass of the product by 11%. |
| |
| Keywords: | minisatellite connection and separation mechanism finite-element model sensitivity analysis design optimization |
| 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》下载全文 |
