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Determining the damping factors for jointed metal plates

Walker, Scott J.I., Aglietti, Guglielmo S. and Cunningham, Paul R. (2006) Determining the damping factors for jointed metal plates In Proceedings of the 9th International Conference on Recent Advances in Structural Dynamics. University of Southampton, Institute of Sound and Vibration Research..

Record type: Conference or Workshop Item (Paper)

Abstract

It has been argued that many of the shortfalls in current dynamic models of built-up structures are due to the fact that the physics of joint dynamics are not fully understood or properly represented in the models. In fact in many applications the damping parameters are generally thought to be almost chaotic in nature, seemingly affected even by small changes in their immediate environment. The prediction of the damping factors of structural joints is therefore recognised as a challenging problem in the analysis of all built up structures and is of critical importance in predicting the fatigue life of an aircraft structure. The objective of this investigation is to use experimental data of joint damping to determine the proportional and non proportional damping factors for various jointed plate configurations. These configurations include a bolted joint at a range of torques as well as a riveted joint. The theoretical approach is outlined in the paper along with a general discussion of the experimental data trends. The paper concludes with an assessment of the accuracy of the method and its applicability to more complex structures.

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More information

Published date: 2006
Venue - Dates: Ninth International Conference on Recent Advances in Structural Dynamics, 2006-07-17 - 2006-07-19
Keywords: damping, joints, modelling
Organisations: Aerodynamics & Flight Mechanics, Astronautics Group

Identifiers

Local EPrints ID: 41520
URI: http://eprints.soton.ac.uk/id/eprint/41520
PURE UUID: e89be6cf-3e8b-4129-b328-ab05ed757859

Catalogue record

Date deposited: 22 Sep 2006
Last modified: 17 Jul 2017 15:30

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