设计和测试模拟器用于微振动测试恒星传感器的设计和测试
He Zhu1,2, Shuai He1, Xiaoming Wang1
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Micromachines
|September 28, 2023
概括
一个新的六维微振模拟器准确地复制了恒星传感器的空间加速. 这种基于Gough-Stewart平台的系统提供了高精度和宽带宽,对于测试敏感的航空航天部件至关重要.
科学领域:
- 航空航天工程 航空航天工程
- 机械工程 机械工程
- 振动分析 振动分析
背景情况:
- 航天器的部件,如恒星传感器,面临微振环境.
- 精确模拟这些振动对于任务的成功至关重要.
- 现有的模拟方法可能缺乏多维能力.
研究的目的:
- 设计和验证一个多维微振模拟器.
- 为了能够有效地复制空间六维加速.
- 为了评估模拟器在恒星传感器应用中的性能.
主要方法:
- 重力卸载系统和基于Gough-Stewart平台的模拟器的综合设计.
- 模态分析以确定自然频率和模态形状.
- 建立动态方程和共同模拟验证.
- 使用频率响应功能的整个机器测试.
主要成果:
- 模拟器成功地重现了空间六维加速.
- 实现了 5-300 Hz 的输出带宽.
- 加速复制的最大误差为9.19%.
结论:
- 微振模拟器提供高精度和大模拟带宽.
- 它的紧型设计促进了运输和集成.
- 该平台准确地模拟了6度自由度的空间微振动,用于恒星传感器.
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