Abstract

This paper considers the problem of determining the position of the center-of-mass and inertia tensor of a microsatellite mockup on an air-bearing testbed by using optical measurements. The position of the mockup’s center of mass can be shifted relative to the suspension’s center by using a system of electrodynamic linear actuators and loads fixed on them. Using the equations of motion of the mockup on an aerodynamic suspension and measurements of its angular position, the inertia tensor and center-of-mass position of the model are estimated. Based on these estimates, the linear actuators move to set the desired center-of-mass position relative to the suspension point. The developed algorithm for automatic balancing of the microsatellite mockup is experimentally investigated.

中文翻译：

---

空气轴承试验台上惯性张量的估计和微卫星样机的自动平衡

摘要

本文考虑了通过光学测量确定空气承载试验台上微卫星模型的质心和惯性张量的位置的问题。通过使用电动线性致动器和固定在其上的负载系统，可以使样机质心的位置相对于悬架的中心移动。使用模型在空气动力学悬架上的运动方程式及其角度位置的测量值，可以估算模型的惯性张量和质心位置。基于这些估计，线性致动器移动以设置相对于悬挂点的所需质量中心位置。实验研究了用于微卫星模型的自动平衡的已开发算法。