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Proceedings Paper

In-situ model identification and its applications to optimization of vibration isolation systems
Author(s): Amir Khajepour; Orang Vahid
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Paper Abstract

In this paper, based on a general formulation for linear complex systems, an in situ frequency-domain model identification method is introduced. In this technique, frequency response function (FRF) models of the subsystems are extracted without the need for disassembling the system. The FRF-based substructuring (FBS) synthesis and standard NVH testing are used to obtain FRF models of the overall system model. The model is linked to an optimization routine to predict the optimum set of vibration isolation devices for a desired objective function. Three automotive applications of this method are presented: engine mount optimization, body mount optimization, and engine rigid body inertia identification.

Paper Details

Date Published: 17 March 2006
PDF: 12 pages
Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 61690Y (17 March 2006); doi: 10.1117/12.658529
Show Author Affiliations
Amir Khajepour, Univ. of Waterloo (Canada)
Orang Vahid, Univ. of Waterloo (Canada)

Published in SPIE Proceedings Vol. 6169:
Smart Structures and Materials 2006: Damping and Isolation
William W. Clark; Mehdi Ahmadian; Arnold Lumsdaine, Editor(s)

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