Power variances and decay curvature in a reverberant system

Oleg I. Lobkis, Richard L. Weaver, Igor Rozhkov

Research output: Contribution to journalArticlepeer-review

Abstract

Laboratory measurements of the variance of the power transmission coefficient for ultrasound in a reverberant elastic body are compared with extant theory and found to agree. The theory is then extended to describe the transition between behaviors at low and high modal overlap and to incorporate the effects of decay curvature. The new and more precise theory is found to agree poorly with measurements. Reasons for the poor agreement are discussed; it is concluded that the only viable hypothesis is that mode shape statistics are not described by real Gaussian random functions.

Original languageEnglish (US)
Pages (from-to)281-302
Number of pages22
JournalJournal of Sound and Vibration
Volume237
Issue number2
DOIs
StatePublished - Oct 19 2000

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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