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Vibration Intensity Analysis of Penetration Beam-plate Coupled Structures  

홍석윤 (서울대학교 조선해양공학과)
강연식 (서울대학교 조선해양공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.21, no.1, 2002 , pp. 73-81 More about this Journal
Abstract
The transmission of vibration energy through beam-plate junctions in vibration intensity analysis called power new analysis (PFA) has been studied. PFA is an analytic tool for the prediction of frequency averaged vibration response of built-up structures at medium to high frequency ranges. The power transmission and reflection coefficients between the semi-infinite beam and plate are estimated using the wave transmission approach. For the application of the power coefficients to practical complex structures, the numerical methods, such as finite element method are needed to be adapted to the power flow governing equation. To solve the discontinuity of energy density at the joint, joint matrix is developed using energy flow coupling relationships at the beam-plate joint. Using the joint matrix developed in this paper, an idealized ship stem part is modeled with finite element program, and vibration energy density and intensity are calculated.
Keywords
Beam-plate coupled structure; Vibration intensity analysis; Energy flow analysis; Power transmission and reflection coefficients; Joint matrix; Power flow finite element method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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