Design and investigation of ground micro-gravity experimental system for large space spinning structures

IF 4.5 1区工程技术 Q1 ENGINEERING, MECHANICAL

Mechanism and Machine Theory Pub Date : 2024-12-24 DOI:10.1016/j.mechmachtheory.2024.105891

Guo Wei, Jialiang Sun, Xinyuan Li, Jiaojiao Guo, Dongping Jin

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引用次数: 0

Abstract

On-orbit dynamic stability of a spacecraft system with a large space structure is affected by external forces and actuator-induced perturbations. To effectively predict the on-orbit dynamic behavior of large space structures, it is urgent to validate them by ground experiments. This paper designs a novel micro-gravity experimental system for simulating the on-orbit operation state of a large space structure and conducting its ground vibration testing research. Firstly, the experimental system uses a spherical air-bearing and a gear-rotating device to achieve frictionless rotational motion of the large space structure. Secondly, two eccentric rotors are employed to simulate an actuator, serving as an on-orbit perturbation source to excite the dynamic characteristics of the large space structure. At the same time, a real-time digital image correlation (DIC) deformation measurement system captures the full-field displacement. Finally, an on-orbit dynamic experiment is conducted on the large space structure in the ground micro-gravity experimental system, and the effectiveness of the experimental system is validated through numerical simulation results.

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来源期刊

Mechanism and Machine Theory 工程技术-工程：机械

CiteScore

9.90

自引率

23.10%

发文量

450

审稿时长

20 days

期刊介绍： Mechanism and Machine Theory provides a medium of communication between engineers and scientists engaged in research and development within the fields of knowledge embraced by IFToMM, the International Federation for the Promotion of Mechanism and Machine Science, therefore affiliated with IFToMM as its official research journal. The main topics are: Design Theory and Methodology; Haptics and Human-Machine-Interfaces; Robotics, Mechatronics and Micro-Machines; Mechanisms, Mechanical Transmissions and Machines; Kinematics, Dynamics, and Control of Mechanical Systems; Applications to Bioengineering and Molecular Chemistry