Dynamic equivalence conditions for an air-bearing simulator emulating scaled drag-free control dynamics

作     者：Mingwei Chen Chu Zhang Jianwu He Chao Yang Li Duan Qi Kang 陈明伟;章楚;贺建武;杨超;段俐;康琦

作者机构：Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Engineering ScienceUniversity of Chinese Academy of SciencesBeijing 100190China 

基　　金：supported by the National Key Research and Development Program of China (Grant No.2021YFC2202604) the Strategy Priority Research Program of Chinese Academy of Sciences (Grant No.XDA1502110101) 

出 版 物：《Acta Mechanica Sinica》 (力学学报(英文版))

年 卷 期：2025年第41卷第1期

页      码：192-210页

摘      要：The ground-based experimental tests are crucial to verify the related technologies of the drag-free *** work presents a design method of the ground simulator testbed for emulating the planar dynamics of the space drag-free *** this paper,the planar dynamic characteristics of the drag-free satellite with double test masses are analyzed and nondimensionalized.A simulator vehicle composed of an air bearing testbed and two inverted pendulums is devised on the basic of equivalent mass and equivalent stiffness proposed firstly in this *** the dynamic model of the simulator equivalent to the sensitive axis motion of the test mass and the planar motion of the satellite is derived from the Euler-Lagrange ***,the dynamic equivalence conditions between the space prototype system and the ground model system are derived from Pi *** satisfy these conditions,the scaling laws of two systems and requirements for the inverted pendulum are put ***,the corresponding control scaling laws and a closed-loop control strategy are deduced and applied to establishing the numerical simulation experiments of underactuated ***,the comparative simulation results demonstrate the similarity of dynamical behavior between the scaled-down ground model and the space *** a result,the rationality and effectiveness of the design method are proved,facilitating the ground simulation of future gravitational wave detection satellites.

主 题 词：Drag-free satellite Ground simulation Pi theorem Dynamical similarity Scaling law 

学科分类：08[工学] 082504[082504] 0825[工学-环境科学与工程类] 

核心收录：

D　O　I：10.1007/s10409-024-24026-x

馆 藏 号：203143791...