Development of Noise and Vibration Prediction Software in Medium-to-High Frequency Ranges Using Power Flow Boundary Element Method

2003-01-1458

05/05/2003

Event
SAE 2003 Noise & Vibration Conference and Exhibition
Authors Abstract
Content
In this paper, Power Flow Boundary Element Method (PFBEM) is studied as a new tool of the noise and vibration analysis in medium-to-high frequency ranges, and the noise and vibration prediction software using this method is developed. The developed prediction system includes both direct and indirect approaches, and also offers the various functions like baffled condition, absorption boundary condition and so forth. To verify the accuracy, the developed prediction system is applied to the prediction of the vibration energy distributions in simple beams and thin plates, and the results are compared with the exact solutions of Power Flow Analysis (PFA). As practical examples, car cabins surrounded by the materials of different absorption coefficients are modeled and the distributions of smoothed acoustical energy density are successfully predicted.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-1458
Pages
11
Citation
Lee, H., Park, D., and Hong, S., "Development of Noise and Vibration Prediction Software in Medium-to-High Frequency Ranges Using Power Flow Boundary Element Method," SAE Technical Paper 2003-01-1458, 2003, https://doi.org/10.4271/2003-01-1458.
Additional Details
Publisher
Published
May 5, 2003
Product Code
2003-01-1458
Content Type
Technical Paper
Language
English