一种四自由度卫星模拟装置

By designing a four-degree-of-freedom satellite simulation device, and using air buoyancy combined with reverse counterweight and symmetrical pulley system, the satellite was able to translate along the X, Y, and Z axes and rotate around the Z axis on the ground. This solved the problems of low accuracy and high maintenance cost in existing microgravity simulation technologies, and provided high-precision attitude control.

CN116495206BActive Publication Date: 2026-07-17BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
Filing Date
2023-04-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing satellite microgravity simulation devices are unable to achieve equivalent simulation in all dimensions, especially in terms of attitude control of the four degrees of freedom: translational motion along the X, Y, and Z axes and rotation around the Z axis. They also suffer from problems such as high friction, high maintenance costs, and low accuracy.

Method used

Design a four-degree-of-freedom satellite simulation device. Based on the air flotation method, combined with reverse counterweight and symmetrically distributed pulley system, the device achieves four-degree-of-freedom motion by controlling the gas supply time and pressure of the air supply and nozzle through the pressure system, including translation along the X-axis, Y-axis and Z-axis and rotation around the Z-axis.

Benefits of technology

It achieves high-precision microgravity simulation of satellites on the ground, reduces the impact of friction, lowers maintenance costs, and improves the simplicity and accuracy of attitude control.

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Abstract

本发明涉及一种四自由度卫星模拟装置,包括基体框架、气足、喷嘴、两个定滑轮组、目标载荷配重组件、两个反向配重组件、压力系统;两个定滑轮组的第一端分别通过绳索连接到目标载荷配重组件;两个定滑轮组的第二端分别通过绳索连接到两个反向配重组件;通过两个反向配重组件实现目标载荷组件在竖直方向的重力平衡。按照姿态调整需求设置压力系统对各个喷嘴的供气通断时间,使所述装置实现沿X轴、Y轴、Z轴的平移以及绕Z轴的转动这四个自由度的位置与姿态控制。本发明实现了卫星在地面上的微重力模拟,同时还实现了对卫星位置、姿态四自由度的控制,为开展地面试验提供硬件基础。
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