Energy flow boundary element method for vibration analysis of one and two dimension structures

Article type: Research Article

Authors: Lee, Ho-Won | Hong, Suk-Yoon | Park, Do-Hyun | Kwon, Hyun-Wung

Affiliations: Department of Naval Architecture and Ocean Engineering, Seoul National University, San 56-1 Shilim-dong, Seoul 151-742, Korea

Note: [] Corresponding author. Tel.: +82 2 880 8757; Fax: +82 2 888 9298; E-mail: [email protected]

Abstract: In this paper, Energy Flow Boundary Element Method (EFBEM) was developed to predict the vibration behavior of one- and two-dimensional structures in the medium-to-high frequency ranges. Free Space Green functions used in the method were obtained from EFA energy equations. Direct and indirect EFBEMs were formulated for both one- and two-dimensional cases, and numerically applied to predict the energy density and intensity distributions of simple Euler-Bernoulli beams, single rectangular thin plates, and L-shaped thin plates vibrating in the medium-to-high frequency ranges. The results from these methods were compared with the EFA solutions to verify the EFBEM.

Keywords: Energy Flow Analysis, Energy Flow Boundary Element Method, BEM, medium-to-high frequency, vibration energy density

Journal: Shock and Vibration, vol. 15, no. 1, pp. 33-50, 2008