Browse > Article
http://dx.doi.org/10.3744/SNAK.2012.49.5.384

Development of Noise Analysis Program by using Power Flow Analysis in Medium-to-high Frequency Ranges  

Kwon, Hyun-Wung (Department of Naval Architecture and Ocean Engineering, Seoul National University)
Song, Jee-Hun (Department of Naval Architecture & Ocean Engineering, Chonnam National University)
Hong, Suk-Yoon (Department of Naval Architecture and Ocean Engineering, Seoul National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.49, no.5, 2012 , pp. 384-390 More about this Journal
Abstract
Power Flow Analysis (PFA) is introduced for solving the noise and vibration analysis of structures in medium-to-high frequency ranges. The vibration analysis software, $PFADS_{C{+}{+}}$ R4 based on Power Flow Finite Element Method (PFFEM) and the noise prediction software, $NASPFA_{C{+}{+}}$ R1 based on Power Flow Boundary Element Method (PFBEM) are developed. In this paper, the coupling equation which represents relation between structural energy and acoustic energy is developed for vibro-acoustic coupling analysis. And vibro-acoustic coupling analysis software based on PFA and coupling equation is developed. Developed software is composed of translator, cavity-finder, solver and post-processor over all. Translator can translate FE model into PFADS FE model and cavity-finder can automatically make NASPFA BE model from PFADS FE model for noise analysis. The solver module calculates the structural energy density, intensity of structures, the fictitious source on the boundary and the acoustic energy density at the field in acoustic cavities. Some applications of vibro-acoustic coupling analysis software to various structures and cruise ship are shown with reliable results.
Keywords
PFA; PFFEM; PFBEM; Vibro-acoustic coupling analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Lee, H.-W. Hong, S.-Y. Park, D.-H. & Kwon, H.-W., 2008. Energy flow boundary element method for vibration analysis of one and two dimension structures. Shock and Vibration, 15(1), pp.33-50.   DOI
2 Maidanik, G., 1962. Response of ribbed panels to reverberant acoustic fields. Journal of the Acoustical Society of America, 34(6), pp.809-826.   DOI
3 Nefske, D.J. & Sung, S.H., 1989. Power flow finite element analysis of dynamic systems : basic theory and application to beams. Journal of Vibration, Acoustics, Stress and Reliability in Design, 111(1), pp.94-100.   DOI
4 Park, D.-H. Hong, S.-Y. Kil, H.-G. & Jeon, J.-J., 2001. Power flow model and analysis of in-plane waves in finite coupled thin plates. Journal of Sound and Vibration, 244(4), pp.651-668.   DOI   ScienceOn
5 Seo, S.-H. Hong, S.-Y. & Kil, H.-G., 2003. Power flow analysis of reinforced beam-plate coupled structures. Journal of Sound and Vibration, 259(5), pp.1109-1129.   DOI   ScienceOn
6 Fernando, B., 1996. The Structural-Acoustic Energy Finite Element Method and Energy Boundary Element Method. Ph.D. Purdue University.
7 Bouthier, O.M. & Bernhard, R.J., 1995a. Simple models of the energetics of transversely vibrating plates. Journal of Sound and Vibration, 182(1), pp.149-164.   DOI   ScienceOn
8 Bouthier, O.M. & Bernhard, R.J., 1995b. Simple models of energy flow in vibrating membranes. Journal of Sound and Vibration, 182(1), pp.129-147.   DOI   ScienceOn
9 Belov, V.D. Rybak, S.A. & Tartakovskii, B.D., 1977. Propagation of vibrational energy in absorbing structures. Soviet Physics Acoustics, 23(2), pp.115-119.
10 Kwon, H.-W. Hong, S.-Y. Lee, H.-W. & Song, J.-H., 2011. Power flow boundary element analysis for multi-domain problems in vibrational built-up structures. Journal of Sound and Vibration, 330(26), pp.6482-6494.   DOI   ScienceOn