Wave-like modelling of cascaded, lumped, flexible systems with an arbitrarily moving boundary

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Title: Wave-like modelling of cascaded, lumped, flexible systems with an arbitrarily moving boundary
Authors: O'Connor, William
Permanent link: http://hdl.handle.net/10197/2885
Date: 20-Jun-2011
Abstract: This paper considers cascaded, lumped, flexible systems, which may be short and non-uniform, which are driven by an arbitrarily moving boundary. Such systems exhibit vaguely wavelike behaviour yet defy classical wave analysis. The paper proposes novel ways to analyse and model such systems in terms of waves. It presents two new wave models for non-uniform systems, one series and one shunt, defining their component wave transfer functions, and thereby providing a way to define, identify and measure component waves. Features of the models are compared. The series and shunt configurations are mutually consistent and can be combined into a single composite wave model. The models are exact, but elements within them remain arbitrary to some degree, implying slight differences in the wave decomposition of the system. Some good model choices are proposed and explored. Wave speed and wave impedance are briefly considered, as are ways to measure component waves. Implications are discussed.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: Elsevier
Copyright (published version): 2011 Published by Elsevier Ltd.
Keywords: Lumped systems;Wave analysis;Wave dynamics;Moving boundaries;Active vibration damping;Flexible systems
Subject LCSH: System analysis
Wave mechanics
Damping (Mechanics)
Waves--Mathematical models
DOI: 10.1016/j.jsv.2011.01.021
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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