Demonstration of vibro-acoustic reciprocity including scale modeling

J. Liu, L. Zhou, D. W. Herrin

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations


The principle of vibro-acoustic reciprocity is reviewed and applied to model sound radiation from a shaker excited structure. Transfer functions between sound pressure at a point in the far field and the velocity of a patch were determined reciprocally both for the to-scale structure and also for a half-scale model. A point monopole source was developed and utilized for the reciprocal measurements. In order to reduce the measurement effort, the boundary element method (BEM) was used to determine the reciprocal transfer functions as an alternative to measurement. Acceleration and sound intensity were measured on patches of the vibrating structure. Reciprocally measured or BEM generated transfer functions were then used to predict the sound pressure in the far field from the vibrating structure. The predicted sound pressure compared favorably with that measured.

Original languageEnglish
JournalSAE Technical Papers
StatePublished - 2011
EventSAE 2011 Noise and Vibration Conference and Exhibition, NVC 2011 - Rapids, MI, United States
Duration: May 16 2011May 19 2011

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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