Study on Experimental Design and Verification of Attitude/Orbital Control System for a Solar Sail

太阳帆姿态/轨道控制系统实验设计与验证研究

• 批准号: 17560699
• 负责人: HOKAMOTO Shinji
• 金额: $ 2.3万
• 依托单位: KYUSHU UNIVERCITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560699/
• 关键词: Solar Sail; Attitude Control; Solar Radiation Pressure; Ground Experiment

First, this research examined the attitude and orbital dynamics of spinning solar sail spacecraft on earth-and interplanetary-orbit, which is investigated for future deep space exploration in Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA). Numerical simulations estimated the influence of its spinning rate and an uncertain offset between its center-of-mass (cm) and center-of pressure (cp) on the attitude variation.Then, considering an amount of the calculated influence, this research designed and assembled a ground experimental system for validation of an attitude control system for a spinning solar sail. The experimental system simulates a solar radiation pressure (SRP) force using earth gravity force; originally, air flow were supposed to be employed as modeling for SRP, but it was turned out that flow disturbance and vortex easily generates disturbance force and torque for the system. Besides, small inertia force acting its payload mass due to counter effect of sail acceleration is also experimentally simulated through gravity force compensation using a counter balance system. Furthermore, the system can control its cm/cp offset by moving the payload mass placed at the tip of a two-axis gimbaled control boom.The experimental system verified its fundamental performance as a ground-placed validation setup for a spinning solar sail system, in measuring induced torque and force in each axis for changing the cm/cp offset and spinning rate.

首先，这项研究审查了旋转太阳帆航天器在地球轨道和行星际轨道上的姿态和轨道动力学，这是日本宇宙航空研究开发机构空间和宇宙航行科学研究所（ISAS/JAXA）为未来深空探索而进行的研究。通过数值仿真分析了自转速率和质心与压心不确定性对姿态变化的影响，并在此基础上设计和搭建了自转太阳帆姿态控制系统的地面实验系统。该实验系统利用地球重力模拟太阳辐射压力（SRP），原本以气流作为SRP的模型，但发现气流扰动和涡流容易对系统产生扰动力和力矩。此外，还通过使用平衡系统的重力补偿，实验模拟了由于帆加速度的反作用而作用于其有效载荷质量的小惯性力。此外，该系统可以控制其厘米/cp的偏移量通过移动放置在一个两轴万向节的控制boomb.The实验系统验证了其基本性能作为一个旋转太阳帆系统的地面放置的验证设置，在测量诱导扭矩和力在每个轴上改变厘米/cp的偏移量和自旋率。