Experimental investigation of vibration power flow in thin technical orthotropic plates by the method of vibration intensity

Vibration intensity technique is used to measure vibration power transmission in thin single layer technical orthotropic plates for flexural waves. Measurement of flexural wave power is carried out in far-field conditions. All measurements are undertaken in the frequency domain using the cross-spect...

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Bibliographic Details
Published in:Journal of sound and vibration 2005-07, Vol.285 (3), p.669-695
Main Authors: Mandal, Nirmal Kumar, Rahman, Roslan Abd, Leong, M. Salman
Format: Article
Language:English
Subjects:
Energy transfer
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Measurement and testing methods
Orthotropic plates
Physics
Plates
Power transmission
Solid mechanics
Steels
Structural and continuum mechanics
Thin films
Vibration
Wave power
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Summary:Vibration intensity technique is used to measure vibration power transmission in thin single layer technical orthotropic plates for flexural waves. Measurement of flexural wave power is carried out in far-field conditions. All measurements are undertaken in the frequency domain using the cross-spectra of acceleration signals, facilitating the use of FFT analyzer. The two-transducer technique applicable to these plates is used for these measurements. Technical orthotropic (rectangular corrugation) plates of steel are used for the measurements. One isotropic plate of steel is also considered for comparison. Method of elastic equivalence technique is used. Both input power and vibration power transmission through the plates are estimated. Far-field power is normalized with the input power for flexural wave. Influence of flexural rigidity on vibration energy transfer is also investigated.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2004.08.041