卫星控制中容错推进器配置的优化
Optimization of Fault-Tolerant Thruster Configurations for Satellite Control
- Tokyo Metropolitan University（东京都立大学）
机构由 AI 辅助整理，请以论文原文为准。
中文总结 AI 辅助
本研究提出一种基于能量势方法的优化框架，用于设计固定推进器的最优容错配置，以最大化全驱动或欠驱动卫星的可控性，并通过数值示例验证了有效性。
中文摘要 AI 辅助
航天器执行器的容错能力显著影响卫星的可靠性及任务成功的可能性。为增强执行器的容错能力，本研究推导了固定推进器的最优容错配置，以最大化全驱动或欠驱动卫星的可控性。所提方法优化了推进器产生的推力和力矩方向。因此，定义了关于推进器位置和方向的代价函数，其为相对于本体坐标系的生成控制力和力矩之和。最优配置通过连续使用受汤姆森问题启发的能量势方法获得。提供了一些数值示例，展示了所提公式和优化方法的有效性。
英文摘要
The fault tolerance of spacecraft actuators significantly affects the reliability of satellites and the likelihood of successful missions. To enhance the fault tolerance of the actuators, this study derives optimal fault-tolerant configurations of fixed thrusters that maximize the controllability of a fully-actuated or underactuated satellite. The proposed method optimizes thrust and torque directions generated by the thrusters. Thus a cost function in terms of the thruster locations and directions is defined as the summation of the generated control forces and torques with respect to the body-fixed frame. The optimal configuration is obtained by the successive use of an energy potential method that is motivated by Thomson's problem. Some numerical examples are provided that show the effectiveness of the proposed formulation and optimization method.
