ENERGY FLOW ANALYSIS METHOD OF IDENTIFICATION OF STRUCTURE BORNE SOUND SOURCE

›› 1999, Vol. 35 ›› Issue (3): 29-33.

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ENERGY FLOW ANALYSIS METHOD OF IDENTIFICATION OF STRUCTURE BORNE SOUND SOURCE

Li Tianyun;Liu Li;Liu Shiguang

Huazhong University of Science and Technology

Published:1999-05-01

Abstract

Abstract: An analysis method is proposed to identify structure-borne sound source based on vibrational energy flow theory. The cross-spectrum expression of energy flow is deduced when two linear accelerometers are arrayed to measure energy flow. Major error sources and method of their reduction are provided. The accuracy of measurement is verified by an experiment and a main procedure to identify structure-borne sound source is provided.

Key words: Identification, Reducing vibration and noise, Structure-borne sound, Vibrational energy flow

CLC Number:

U661.4

Li Tianyun;Liu Li;Liu Shiguang. ENERGY FLOW ANALYSIS METHOD OF IDENTIFICATION OF STRUCTURE BORNE SOUND SOURCE[J]. , 1999, 35(3): 29-33.

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