University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Modeling methodologies for microvibration-related analyses of spacecraft structures

Remedia, Marcello, Aglietti, Guglielmo, Zhang, Z, LePage, B and Richardson, G (2012) Modeling methodologies for microvibration-related analyses of spacecraft structures

[img]
Preview
Text (licence)
SRI_deposit_agreement.pdf
Available under License : See the attached licence file.

Download (33kB) | Preview

Abstract

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 modeling has grown increasingly important. In this context micro-vibrations are low level mechanical disturbances occurring at frequencies from a few Hertz up to 1000 Hz. As the frequency content of these phenomena extends beyond the first few modal frequencies, FEA predictions become less accurate and alternative methods have to be considered. Other modeling and analysis techniques have been investigated and applied to vibration problems (Stochastic Finite Element Method (e.g. Monte Carlo Simulation), Statistical Energy Analysis (well-established method for high frequency ranges) and the Hybrid FE-SEA), with the aim of investigating medium and high frequency behavior. This work is part of a project whose aim is to establish appropriate procedures for the modeling and analysis of micro-vibration and validate these procedures against experimental data. All the methods cited above are implemented in this study and compared with experimental results, in order to assess the performance of the various methodologies for micro-vibration problems, covering the whole frequency range up to 1000 Hz. Some comparisons between experimental and computational results are performed using the MAC. Some other analyses, like linearity, reciprocity or effect of the harness are also described. The bench work model that has provided the experimental data is the satellite platform SSTL 300 and this paper outlines these related test campaigns.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Remedia, Marcellom.remedia@surrey.ac.ukUNSPECIFIED
Aglietti, Guglielmog.aglietti@surrey.ac.ukUNSPECIFIED
Zhang, ZUNSPECIFIEDUNSPECIFIED
LePage, BUNSPECIFIEDUNSPECIFIED
Richardson, GUNSPECIFIEDUNSPECIFIED
Date : 2012
Depositing User : Symplectic Elements
Date Deposited : 14 Oct 2016 10:49
Last Modified : 31 Oct 2017 18:46
URI: http://epubs.surrey.ac.uk/id/eprint/812391

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800