Ground test apparatus for high speed rotating satellite payloads to counteract wind drag
By rotating the satellite payload at the same speed but in the opposite direction in the ground testing device, the influence of air drag torque is eliminated, solving the testing errors under normal pressure and the inconvenience of testing in low-pressure tanks, and realizing high-precision performance testing of the entire cycle and all parameters.
CN122402818APending Publication Date: 2026-07-17SHANGHAI AEROSPACE SYST ENG INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI AEROSPACE SYST ENG INST
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies cannot eliminate the influence of air resistance torque under normal pressure, leading to test errors and system debugging deviations. At the same time, low-pressure tank testing is inconvenient and has simulation errors.
Method used
By designing a ground testing device, the satellite payload is rotated at the same speed but in the opposite direction to eliminate the influence of air drag torque, and the parameters are adjusted using feedback data from the angle sensor.
Benefits of technology
It enables realistic simulation of load dynamics under normal pressure, improving test accuracy and efficiency, reducing costs, and supporting full-cycle performance testing.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122402818A_ABST
Abstract
本发明提供一种抵消风阻的高速旋转卫星有效载荷的地面测试方法，其构建与卫星有效载荷同步反向旋转的测试平台，使载荷上的大尺寸天线相对于天线保持静止，从而消除空气阻力矩对测试的影响。该装置包括转动轴、角度传感器、电机、轴承、导电环和外壳体。测试平台与有效载荷以相同转速、相反方向旋转，通过角度传感器实时检测旋转状态并反馈至控制系统进行参数调试。本发明无需使用低气压罐，简化测试流程，降低测试成本，提高测试效率，实现真实负载动力学特性测试，提升测试结果的可靠性和在轨预测能力，适用于大尺寸、高速旋转的卫星有效载荷在常压环境下的全周期性能测试。
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