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Transfer function phase prediction for a flat plate

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conference contribution
posted on 2010-07-26, 09:58 authored by L. Wang, Stephen Walsh
This paper reports an investigation into the phase accumulation characteristics in the transfer function of a flat plate for bending waves. The paper starts with an overview of previous research on the phase characteristics in an ideal vibrational wave field i.e. either a completely direct field or a completely diffuse field. This initial research is extended by considering the phase accumulation characteristics of a non-ideal vibrational wave field i.e. a wave field between a direct field and a diffuse field. Various factors likely to influence the phase accumulation are discussed. Based on these factors and a pole and zero model of the direct field phase and the diffuse field phase, two mathematical models are presented for predicting the transfer function phase of a flat plate supporting a non-ideal wave field. Computer simulation results are given which compare the characteristics of the different models.



  • Aeronautical, Automotive, Chemical and Materials Engineering


  • Aeronautical and Automotive Engineering


WANG, L. and WALSH, S.J., 2004. Transfer function phase prediction for a flat plate. Proceedings of the 33rd International Congress and Exposition on Noise Control Engineering (Inter-Noise 2004), Prague, Czech Republic, 22-25 August 2004, Paper No. 139.


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This conference paper was presented at Inter-Noise 2004.


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