【作者】 许英健；

【导师】 张卫东；

【作者基本信息】 上海交通大学 ， 控制工程， 2012， 硕士

【摘要】 航天器在空间中工作主要依靠安装在太阳翼上的太阳能电池提供能源。随着航天器能源需求的不断提高,航天器太阳翼面积的不断扩大,大型太阳翼在转动过程中对于航天器本体造成的影响成为航天技术中一项重要的研究课题。本文围绕着用于地面模拟实验的航天器太阳翼动态影响测量系统的设计,主要研究了测量系统的结构设计、驱动机构轴系偏移干扰的处理、测控软件的开发三个核心问题。首先,分析了太阳翼在空间环境中的干扰力矩情况,确定了太阳翼运行中对驱动机构的主要影响为转动惯性力矩,讨论了以相同惯量物体模拟刚性太阳翼转动惯量的可行性。通过与气浮平台方案的对比分析,提出对传感器测量数据进行重力补偿来消除重力影响的设计方案,并依据此方案设计了航天器太阳翼动态影响测量系统的总体结构。其次,研究了系统中存在的驱动机构轴系偏移问题。通过使用测量数据和工作机理相结合的分析方法确定了干扰的主要特征,并针对驱动机构启动周期的测量需求,设计了阈值延时启动IIR高通滤波器,通过调整阈值函数和延时时间有效消除了驱动机构轴系偏移的干扰。最后,基于本文提出的滤波算法,采用VC++作为开发平台,开发了航天器太阳翼动态影响测量系统的配套测控软件,软件提供了测量数据动态显示、驱动机构转速控制、数据分析统计、数据存储输出等功能。更多还原

【Abstract】 When working in space, Spacecraft mainly depend on the solar cells which are installed on solar wings to provide energy. As the spacecraft energy demand continues to increase, the area of spacecraft solar wings continues to expand. Large-scale solar wings’impact to the spacecraft body has become an important research topic in aerospace technology.In order to implement the spacecraft solar wings dynamic effects measurement system, which is used in ground simulation experiment, this paper focuses on the research of solar wings’ground simulation, drive mechanism shaft offset processing, monitoring and control software design.First, this paper analyzes the disturbance torque conditions when large-scale solar wings operate in space environment, and demonstrate the effectiveness of using the same inertia simulation solar wings. By comparing with the flotation platform program, propose using sensor to eliminate gravity, and design spacecraft solar wings dynamic effects measurement system.In addition, study on drive mechanism shaft offset problem. By the analysis of measurement data and working mechanism, obtain the characteristics of the disturbance. Design a threshold delay start digital IIR filter to supply the demand when driving mechanism start.Finally, based on the above algorithm,monitoring and control software is developed using C + + to support the spacecraft solar wings dynamic effects measurement system. The software is so powerful that provides dynamic data display, drive mechanism control, data analysis and statistics, data storage and output functions, etc.更多还原