Error Analysis and Test Research on Space Brake Torque Measurement

The space brake is an important part for the stable adjustment of spacecraft motion attitude, which can convert the impact force into internal force consumption to stabilize spacecraft orbit attitude. In order to select the brake whose brake torque is within a reasonable range, it is necessary to measure the brake torque in the simulated space state. In this paper, the torque measurement method of space brake is studied, and the measurement error is analyzed; an effective method to reduce the error of torque measurement is raised, and the experimental measurement method is used for checking and verification. At last, the differences between the theoretical analysis and the test measurement results are compared, and the design elements are given, which paves the way for the subsequent test platform optimal design as well as development and production of products.