Sensitivity analysis of vibro-acoustic systems in statistical energy analysis framework

Chavan, Arun T.; Manik, Dhanesh N.

doi:10.1007/s00158-009-0362-8

Cited by 11 publications

(1 citation statement)

References 20 publications

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“…On the other hand, as one of the most effective methods to solve the complex vibro-acoustic coupled problems in high-frequency domains, the statistical energy analysis (SEA) method (Lyon, 1975;Chavan and Manik, 2010) based on energy flow is widely applied in the fields of aerospace, automobile, shipping, etc (Hwang, 2001;Hynna et al, 1995;DeJong, 2003). It is a simple method to estimate the mean vibrational energy stored in the modal groups constituting subsystems based on the statistical considerations and energy balance, where SEA equations can state the power balance of constitute subsystems.…”

Section: Introductionmentioning

confidence: 99%

Statistical energy analysis for vibro-acoustic coupled system with fuzzy parameters

Wang

Wu²,

Wang³

et al. 2018

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Purpose This paper aims to propose a novel statistic energy analysis method with fuzzy parameters to study the dynamic and acoustic responses of coupled system with fuzzy parameters, which can expand the applied range of statistic energy analysis method in engineering to some extent. Design/methodology/approach On the basis of the property of membership level, the uncertain fuzzy parameters are expressed as the interval forms. Interval mathematics and interval expansion principle are adopted to solve the problem with interval parameters. At last, two numerical examples, which include a two-plate coupled system and a single-partition sound-insulation system, are carried out to demonstrate the feasibility and validity of the presented method. Findings Interval mathematics and interval expansion principle are adopted to solve the problem with interval parameters. Originality/value By integrating the interval analysis, optimization technique and Taylor expansion method, two non-probabilistic, set-theoretical statistical energy analyses are proposed for predicting the dynamical and acoustical response of the complex coupled system with uncertain parameters in high-frequency domain.

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