Departmental Bulletin Paper FEMを用いたSEA構造モデル構築法に関する研究
A Study on Method of Structure Model Construction for Statistical Energy Analysis using FEM

黒田, 勝彦  ,  並川, 修平

57 ( 1 )  , pp.33 - 38 , 2017-07-27 , 長崎総合科学大学附属図書館運営委員会
ISSN:2423-9976
NCID:AA1274191X
Description
This paper presents a structure model construction for statistical energy analysis (SEA) using FEM. Identifying SEA parameter regardless of the excitation method is demanded effectively. The proposed method is based on a combination of SEA and vibration response by random vibration analysis. This method is effective on an analytical cost performance for base excitation compared with the conventional force excitation method that is called rain-on-the-roof-excitation. In this study, the proposal method is validated through the two types of model, (i) simple flat plate consisting of one subsystem, and (ii) an L plate consisting of two subsystems. As a result, the method is shown to work quantitatively well to the internal loss factors and qualitatively well to the coupling loss factors.
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