Design and verification of a negative resistance electromagnetic shunt damper for spacecraft micro-vibration

Stabile, A, Aglietti, GS, Richardson, G and Smet, G (2016) Design and verification of a negative resistance electromagnetic shunt damper for spacecraft micro-vibration Journal of Sound and Vibration, 386. pp. 38-49.

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Abstract

Active control techniques are often required to mitigate the micro-vibration environment existing on board spacecraft. However, reliability issues and high power consumption are major drawbacks of active isolation systems that have limited their use for space applications. In the present study, an electromagnetic shunt damper (EMSD) connected to a negative-resistance circuit is designed, modelled and analysed. The negative resistance produces an overall reduction of the circuit resistance that results in an increase of the induced current in the closed circuit and thus the damping performance. This damper can be classified as a semi-active damper since the shunt does not require any control algorithm to operate. Additionally, the proposed EMSD is characterised by low required power, simplified electronics and small device mass, allowing it to be comfortably integrated on a satellite. This work demonstrates, both analytically and experimentally, that this technology is capable of effectively isolating typical satellite micro-vibration sources over the whole temperature range of interest

Item Type:	Article
Subjects :	Electronic Engineering
Divisions :	Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :	Authors Email ORCID Stabile, A UNSPECIFIED UNSPECIFIED Aglietti, GS UNSPECIFIED UNSPECIFIED Richardson, G UNSPECIFIED UNSPECIFIED Smet, G UNSPECIFIED UNSPECIFIED
Date :	6 October 2016
Identification Number :	https://doi.org/10.1016/j.jsv.2016.09.024
Copyright Disclaimer :	© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Related URLs :	Publisher
Depositing User :	Symplectic Elements
Date Deposited :	21 Sep 2016 10:13
Last Modified :	01 Dec 2016 10:03
URI:	http://epubs.surrey.ac.uk/id/eprint/812264

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