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Estimation of structure-borne noise in plates for far field conditions using the structural intensity method

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conference contribution
posted on 06.12.2017, 00:00 authored by Nirmal MandalNirmal Mandal, R Rahman, M Leong
Vibration power flow measurement is an important tool in identifying significant paths of vibration transmission from source through a structure. The measurement of vibration level itself may give limited information since stationary waves may be present giving rise to large amplitudes with no power transmitted. Structural intensity is a vector quantity where the power flow pattern may be identified by measuring the structural intensities on the structure. This paper examines the use of structural intensity in the theoretical estimation of vibration power flow in naturally orthotropic plates in the frequency domain under far field conditions. The theoretical power flow models could be used in technically orthotropic plates and corrugated plates for example by defining the elastic rigidity constants using the method of elastic equivalence [2].

Funding

Category 3 - Industry and Other Research Income

History

Parent Title

Inter-noise 98 : sound and silence : setting the balance : conference proceedings, Christchurch, New Zealand, 16-18 November 1998.

Start Page

703

End Page

706

Number of Pages

4

Start Date

01/01/1998

ISBN-10

0473054434

Location

Christchurch, New Zealand

Publisher

Causal Productions

Place of Publication

Rundle Mall, S. Aust.

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Conference; Institute for Resource Industries and Sustainability (IRIS); Institute of Noise and Vibration;

Era Eligible

No

Name of Conference

Inter-noise 98. Conference