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

doi:10.1007/s10409-024-24026-x

IMECH-IR > 微重力重点实验室

	Dynamic equivalence conditions for an air-bearing simulator emulating scaled drag-free control dynamics
	Chen MW(陈明伟)1,2; Zhang C(章楚)1 ; He JW(贺建武)1,2 ; Yang C(杨超)1 ; Duan L(段俐)1,2 ; Kang Q(康琦)1,2
通讯作者	Zhang, Chu([email protected])
发表期刊	ACTA MECHANICA SINICA
	2025
卷号	41 期号:1 页码:19
ISSN	0567-7718
摘要	The ground-based experimental tests are crucial to verify the related technologies of the drag-free satellite. This work presents a design method of the ground simulator testbed for emulating the planar dynamics of the space drag-free systems. In this paper, the planar dynamic characteristics of the drag-free satellite with double test masses are analyzed and non-dimensionalized. 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 paper. And 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 method. Then, the dynamic equivalence conditions between the space prototype system and the ground model system are derived from Pi theorem. To satisfy these conditions, the scaling laws of two systems and requirements for the inverted pendulum are put forward. Besides, the corresponding control scaling laws and a closed-loop control strategy are deduced and applied to establishing the numerical simulation experiments of underactuated system. Subsequently, the comparative simulation results demonstrate the similarity of dynamical behavior between the scaled-down ground model and the space prototype. As a result, the rationality and effectiveness of the design method are proved, facilitating the ground simulation of future gravitational wave detection satellites.
关键词	Drag-free satellite Ground simulation Pi theorem Dynamical similarity Scaling law
DOI	10.1007/s10409-024-24026-x
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:001317151200005
关键词[WOS]	ORBIT PERFORMANCE ; SPACE ; LISA
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
资助项目	National Key Research and Development Program of China[2021YFC2202604] ; Strategy Priority Research Program of Chinese Academy of Sciences[XDA1502110101]
项目资助者	National Key Research and Development Program of China ; Strategy Priority Research Program of Chinese Academy of Sciences
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Zhang, Chu
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/96710
专题	微重力重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Chen MW,Zhang C,He JW,et al. Dynamic equivalence conditions for an air-bearing simulator emulating scaled drag-free control dynamics[J]. ACTA MECHANICA SINICA,2025,41,1,:19.Rp_Au:Zhang, Chu
APA	陈明伟,章楚,贺建武,杨超,段俐,&康琦.(2025).Dynamic equivalence conditions for an air-bearing simulator emulating scaled drag-free control dynamics.ACTA MECHANICA SINICA,41(1),19.
MLA	陈明伟,et al."Dynamic equivalence conditions for an air-bearing simulator emulating scaled drag-free control dynamics".ACTA MECHANICA SINICA 41.1(2025):19.