Innovative Mechanical Design Strategy for Actualizing 80 kg-Class X-Band Active SAR Small Satellite of S-STEP
Innovative Mechanical Design Strategy for Actualizing 80 kg-Class X-Band Active SAR Small Satellite of S-STEP
复制标题
S-STEP 80公斤级X波段有源SAR小卫星实现的创新机械设计策略
DOI：
10.3390/aerospace8060149
复制
发表时间：
2021
期刊：
影响因子：
2.6
通讯作者：
Hyunjong Oh
中科院分区：
文献类型：
--
作者：
Seong;Jinwook Son;S. Song;Jin;Kyung;Hyunjong Oh
小型合成孔径雷达技术实验项目（S-STEP）使命旨在开发一种新的（天基80公斤级有源X波段合成孔径雷达）卫星，其主要成像模式为1米分辨率条带图。在S-STEP使命中，为了实现研制更快、更便宜、更好和更轻的小型SAR卫星系统的设计目标，提出并研究了创新的热机械设计方法。主要设计方案有总线与有效载荷一体化平板式结构、多功能发射/接收（TR）模块和具有整星隔振功能的专用无振轨道展开器（VFOD）。为了验证S-STEP创新机械设计的可行性，进行了考虑发射和在轨环境的结构分析。此外，开发测试结果，以确认所提出的VFOD设计方法的有效性。
The Small SAR Technology Experimental Project (S-STEP) mission aims to develop a new (space-based 80 kg-class active X-band synthetic aperture radar (SAR)) satellite with a main imaging mode of 1 m resolution stripmap. In the S-STEP mission, to achieve the design goal of developing faster, cheaper, better, and lighter small SAR satellite systems, innovative thermo-mechanical design approaches have been proposed and investigated. The major design approaches are the bus-payload integrated flat plate-type structure, multifunctional transmit/receive (TR) module, and dedicated vibration-free orbit deployer (VFOD) with the function of whole spacecraft vibration isolation. To validate the feasibility of the innovative mechanical design of S-STEP, a structural analysis considering launch and on-orbit environments is performed. In addition, development test results are presented to confirm the effectiveness of the proposed design approach for VFOD.