The University of Southampton
University of Southampton Institutional Repository

A study of the damping linearity of jointed metal plates

A study of the damping linearity of jointed metal plates
A study of the damping linearity of jointed metal plates
Dynamic models are widely used in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not fully understood. This makes the phenomenon very hard to model theoretically from first principles. Experimental analyses are therefore widely used to underpin any work in this area. This study aims to build on the previous experimental work based on simple beam joints and analyses the damping trends for metal panels. This incorporates torsional effects into the system creating more complex displacements of the joint. Five panel configurations are investigated using an experimental approach that minimizes all external influences on the dynamics of the panels. Each mode loss factor is determined from these experimental tests and compared to the most established theoretical model in the field. The corresponding joint displacements and decay trends are also analysed, producing indications as to the likely dominant source of damping, suggesting that the mode shapes can be categorized based on their displacement and dominant damping source.
damping metal plates non-linear
0001-1452
1738-1746
Walker, Scott J.I.
f28a342f-9755-48fd-94ea-09e44ac4dbf5
Aglietti, Guglielmo S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Cunningham, Paul
ddb5752a-1b1f-4832-9ca5-d45f31682258
Walker, Scott J.I.
f28a342f-9755-48fd-94ea-09e44ac4dbf5
Aglietti, Guglielmo S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Cunningham, Paul
ddb5752a-1b1f-4832-9ca5-d45f31682258

Walker, Scott J.I., Aglietti, Guglielmo S. and Cunningham, Paul (2008) A study of the damping linearity of jointed metal plates. AIAA Journal, 46 (7), 1738-1746. (doi:10.2514/1.34323).

Record type: Article

Abstract

Dynamic models are widely used in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not fully understood. This makes the phenomenon very hard to model theoretically from first principles. Experimental analyses are therefore widely used to underpin any work in this area. This study aims to build on the previous experimental work based on simple beam joints and analyses the damping trends for metal panels. This incorporates torsional effects into the system creating more complex displacements of the joint. Five panel configurations are investigated using an experimental approach that minimizes all external influences on the dynamics of the panels. Each mode loss factor is determined from these experimental tests and compared to the most established theoretical model in the field. The corresponding joint displacements and decay trends are also analysed, producing indications as to the likely dominant source of damping, suggesting that the mode shapes can be categorized based on their displacement and dominant damping source.

This record has no associated files available for download.

More information

Published date: July 2008
Keywords: damping metal plates non-linear
Organisations: Aerodynamics & Flight Mechanics, Dynamics Group, Astronautics Group

Identifiers

Local EPrints ID: 58242
URI: http://eprints.soton.ac.uk/id/eprint/58242
ISSN: 0001-1452
PURE UUID: 4b97decc-768a-4e65-8a71-45862fe844f5

Catalogue record

Date deposited: 18 Aug 2008
Last modified: 15 Mar 2024 11:10

Export record

Altmetrics

Contributors

Author: Scott J.I. Walker
Author: Guglielmo S. Aglietti
Author: Paul Cunningham

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×