Modelling and testing of a soft suspension design for a reaction/momentum wheel assembly
Modelling and testing of a soft suspension design for a reaction/momentum wheel assembly
The micro-vibrations generated by equipment onboard spacecraft can significantly affect the performance of sensitive payloads; in particular mid to high frequency band micro-vibrations, are difficult to model and control. This study focuses on the micro-vibrations emitted by a wheel assembly (WA) implementing a soft (flexible) suspension system. Both the soft and a “conventional” rigid design were tested using a Seismic Micro-Vibration Measurement System (SMVMS). A Newton–Euler method was employed to develop an analytical model of the WA and the test system, which was then used to model and analyze the micro-vibrations emitted by the reaction/momentum WA, due to the static and dynamic imbalance of the flywheel. When compared with the traditional “rigid” design, the soft suspension system is shown to effectively reduce the high frequency disturbances, and the mathematical model effectively represents the fundamental harmonic disturbances. In addition, the results confirm that the SMVMS shows relatively high measurement accuracy
4596-4610
Zhou, Wei-Tong
51d435d9-905f-48ac-992c-05b99f587ddd
Aglietti, Guglielmo
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Zhang, Zhe
361db637-2b55-4cad-a0d4-9042f16617d5
August 2011
Zhou, Wei-Tong
51d435d9-905f-48ac-992c-05b99f587ddd
Aglietti, Guglielmo
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Zhang, Zhe
361db637-2b55-4cad-a0d4-9042f16617d5
Zhou, Wei-Tong, Aglietti, Guglielmo and Zhang, Zhe
(2011)
Modelling and testing of a soft suspension design for a reaction/momentum wheel assembly.
Journal of Sound and Vibration, 330 (18-19), .
(doi:10.1016/j.jsv.2011.03.028).
Abstract
The micro-vibrations generated by equipment onboard spacecraft can significantly affect the performance of sensitive payloads; in particular mid to high frequency band micro-vibrations, are difficult to model and control. This study focuses on the micro-vibrations emitted by a wheel assembly (WA) implementing a soft (flexible) suspension system. Both the soft and a “conventional” rigid design were tested using a Seismic Micro-Vibration Measurement System (SMVMS). A Newton–Euler method was employed to develop an analytical model of the WA and the test system, which was then used to model and analyze the micro-vibrations emitted by the reaction/momentum WA, due to the static and dynamic imbalance of the flywheel. When compared with the traditional “rigid” design, the soft suspension system is shown to effectively reduce the high frequency disturbances, and the mathematical model effectively represents the fundamental harmonic disturbances. In addition, the results confirm that the SMVMS shows relatively high measurement accuracy
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e-pub ahead of print date: 18 May 2011
Published date: August 2011
Organisations:
Aeronautics, Astronautics & Comp. Eng, Astronautics Group
Identifiers
Local EPrints ID: 336624
URI: http://eprints.soton.ac.uk/id/eprint/336624
ISSN: 0022-460X
PURE UUID: 61c0f170-3e0c-454f-be0a-03e146e43c02
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Date deposited: 11 Apr 2012 07:58
Last modified: 14 Mar 2024 10:45
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Contributors
Author:
Wei-Tong Zhou
Author:
Guglielmo Aglietti
Author:
Zhe Zhang
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