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Development of Noise and Vibration Prediction Software in Medium-to-High Frequency Ranges Using Power Flow Boundary Element Method
Technical Paper
2003-01-1458
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
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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.Also In
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V112-6; Published: 2004-09-15
Number: V112-6; Published: 2004-09-15
References
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- Park D.-H. Hong S.-Y. Kil H.-G. Jeon J.-J. “Power Flow Model and Analysis of In-plane Waves in Finite Coupled Thin Plates” Journal of Sound and Vibration 244 651 668 2001
- Park D.-H. Lee H.-W. Hong S.-Y. “Power Flow Boundary Element Method for Medium-to-High Frequency Analysis: Fundamental Theory and Applications” Proceeding of Internoise 2002