In-situ model identification and its applications to optimization of vibration isolation systems

Amir Khajepour; Orang Vahid

doi:10.1117/12.658529

17 March 2006 In-situ model identification and its applications to optimization of vibration isolation systems

Amir Khajepour, Orang Vahid

Proceedings Volume 6169, Smart Structures and Materials 2006: Damping and Isolation; 61690Y (2006) https://doi.org/10.1117/12.658529
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

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.

Citation Download Citation

Amir Khajepour and Orang Vahid "In-situ model identification and its applications to optimization of vibration isolation systems", Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 61690Y (17 March 2006); https://doi.org/10.1117/12.658529

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