Numerical and experimental validation of a hybrid finite element-statistical energy analysis method

The finite element (FE) and statistical energy analysis (SEA) methods have, respectively, high and low frequency limitations and there is therefore a broad class of "mid-frequency" vibro-acoustic problems that are not suited to either FE or SEA. A hybrid method combining FE and SEA was rec...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2007-07, Vol.122 (1), p.259-270
Main Authors: Cotoni, Vincent, Shorter, Phil, Langley, Robin
Format: Article
Language:English
Subjects:
Acoustics - instrumentation
Computer Simulation
Elasticity
Energy Transfer
Exact sciences and technology
Finite Element Analysis
Fundamental areas of phenomenology (including applications)
Models, Statistical
Monte Carlo Method
Noise
Physics
Reproducibility of Results
Solid mechanics
Structural and continuum mechanics
Vibration
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The finite element (FE) and statistical energy analysis (SEA) methods have, respectively, high and low frequency limitations and there is therefore a broad class of "mid-frequency" vibro-acoustic problems that are not suited to either FE or SEA. A hybrid method combining FE and SEA was recently presented for predicting the steady-state response of vibro-acoustic systems with uncertain properties. The subsystems with long wavelength behavior are modeled deterministically with FE, while the subsystems with short wavelength behavior are modeled statistically with SEA. The method yields the ensemble average response of the system where the uncertainty is confined in the SEA subsystems. This paper briefly summarizes the theory behind the method and presents a number of detailed numerical and experimental validation examples for structure-borne noise transmission.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.2739420