根据规定的性能控制,对受到干扰的重力场探测形成稳定性的研究
The Review of scientific instruments
|October 20, 2023
概括
太空碎片威胁着重力场探索的双卫星阵列. 规定的性能控制提高了稳定性,确保任务成功,尽管影响.
科学领域:
- 天体动力学和太空系统工程 天体动力学和太空系统工程
- 太空任务设计和控制
- 轨道力学和碎片冲击分析
背景情况:
- 双卫星构成对于高精度的重力场探测至关重要.
- 由于在低地球轨道上普遍存在太空碎片环境,这些结构的运行完整性受到重大威胁.
- 现有的控制策略可能无法充分解决随机碎片冲击带来的复杂动态和不确定性.
研究的目的:
- 调查和增强用于在太空碎片威胁下的重力场探测的双卫星阵列的正常运行方式.
- 开发和分析一种适应性态度控制方法,包括规定的性能功能,以减轻碎片冲击干扰.
- 评估长期稳定性和在现实的空间碎片环境中正常运行的可能性.
主要方法:
- 建立20个变量的非线性动态方程,考虑双卫星系统的相对态势动态.
- 引入了一种规定的性能函数,以限制瞬态和稳定状态相对态度错误,简化形成运动.
- 基于规定的性能功能的自适应态度控制策略的设计和应用,以确保车队的稳定性.
主要成果:
- 在特定的低地球轨道碎片干扰条件下分析干扰特征和预期稳定性.
- 模拟结果显示,正常形成运行的概率在第一年约为78.45%,在前三年内为45.59%.
- 建议的规定的性能控制方法有效地提高了双卫星组合的稳定性和可靠性.
结论:
- 规定的性能控制方法为模拟和分析双卫星阵列的正常运行提供了一种有效的方法.
- 这种控制策略增强了重力场探测任务的弹性,以应对持续存在的空间碎片威胁.
- 这些发现支持在具有挑战性的太空环境中使用双卫星阵列的可行性和安全性.
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