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A General Methodology for Analysis of Structure-Borne Microvibration

Remedia, Marcello, Aglietti, Guglielmo S, Zhang, Zhe, Richardson, Guy and LePage, Brian A General Methodology for Analysis of Structure-Borne Microvibration In: 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.

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Driven by the increasingly stringent stability requirement of some modern payloads (e.g. the new generations of optical instruments) the issue of accurate spacecraft micro-vibration modelling has grown of importance. This article focuses on the dynamic coupling between a source of micro-vibration (e.g. reaction wheel) and a structure, taking into account the uncertainties related to both parts. In this context, an alternative to the Monte Carlo Simulation for complex structures has been developed, consisting in sub-structural approach to perturb the natural frequencies of specific subsystem reduced with the Craig-Bampton method. In order to prove the validity of the method and its application to the theory of the coupling, benchmark examples and practical applications will be described.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Surrey Space Centre
Authors :
Aglietti, Guglielmo
Depositing User : Marcello Remedia
Date Deposited : 01 Mar 2017 12:35
Last Modified : 16 Jan 2019 16:52

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