The invention discloses an active gravity unloading method for a ground test of a flexible attachment detector, and belongs to the technical field of extraterrestrial detection. The implementation method comprises the following steps: constructing a flexible attachment detector structure; the flexible attachment detector comprises a body bearing plate, a buffer cylinder, a buffer support rigid body structure and a flexible connection structure. The motors are connected with the mass centers of the flexible rods and the mass centers of the nodes respectively, and force needing to be generated by each motor is calculated and determined according to a static balance equation. And establishing a gravity unloading ground test system for the flexible attachment detector. The test system comprises a supporting device, a moving device and a control system. The force generated by the motor dynamically unloads the gravity acting on the flexible attachment detector through the transmission of the suspension rope, the motor and the pulley block, thereby completing the gravity quantitative precise unloading of the ground test of the flexible attachment detector, and achieving the real simulation of the dynamic characteristics of the flexible attachment structure. Gravity is unloaded through multiple nodes, low-frequency motion can be achieved within a limited range, and large deformation of the structure can be compensated.
本发明公开的柔性附着探测器地面试验主动重力卸载方法,属于地外探测技术领域。本发明实现方法为:构建柔性附着探测器结构。柔性附着探测器包括本体承重板、缓冲筒和缓冲支架刚体结构,以及柔性连接结构。电机分别连接柔性杆质心和节点质心,根据静态平衡方程计算确定每个电机需要产生的力。建立柔性附着探测器重力卸载地面试验系统。试验系统包括支撑装置,运动装置和控制系统。电机产生的力通过悬吊绳、电机和滑轮组传动动态卸载作用在柔性附着探测器上的重力,完成柔性附着探测器地面试验的重力定量精准卸载,实现柔性附着结构动力学特性的真实模拟。本发明通过多节点卸载重力,既能在有限范围内实现低频运动,又能补偿结构的大变形。
Active gravity unloading method for ground test of flexible attachment detector
柔性附着探测器地面试验主动重力卸载方法
2024-04-12
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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