Work

Research on a Passive-Tuned Magnetorheological Damper for Whole-Spacecraft Vibration Isolation

Year: 2025

Type: article

Abstract: During the launch phase of a carrier rocket, the spacecraft carried by the rocket will be subjected to strong vibrations from the rocket body. Therefore, based on the special working conditions during the rocket launch phase, a passive-tuned magnetorheological (PT-MR) damper using the magnetorheological (MR) composite was proposed, which achieves stable and efficient operational performance using permanent magnets (PMs). Firstly, the influence of squeeze mode on the performances of the MR composite was analyzed for different vibration conditions. Then, by analyzing the squeeze strengthening effect of the MR composite and the influence of non-uniform radial gap size on the damping force, the mechanical model of the proposed damper was derived. Furthermore, the damper prototype was fabricated and its mechanical properties were tested, and the test results showed that the proposed damper can generate a damping force exceeding 800 N. Finally, the vibration isolation effectiveness of the proposed damper was verified from a system perspective by building the simulation model of whole-spacecraft vibration isolation.

Source: Actuators

DOI: 10.3390/act14120600

Authors: Lifan Wu, Xiaomin Dong, Kaixiang Wang, Jialong Wang, Xiangcheng Fang, Huan Zhou

Institutions: Chongqing University, State Key Laboratory of Mechanical Transmission, State Key Laboratory of Mechanical Structure Strength and Vibration, Xi'an Jiaotong University

Language: English

Topic: Vibration Control and Rheological Fluids

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,896