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http://dx.doi.org/10.3744/SNAK.2003.40.1.036

Numerical Analysis on the Affection of Lumped Attachments to the Vibration Power Flow in Cross-stiffened Plate  

조대승 (부산대학교 조선해양공학과)
정상민 (SK 케미컬 환경소재연구소)
김재홍 (삼성중공업 조선플래트 연구소)
Publication Information
Journal of the Society of Naval Architects of Korea / v.40, no.1, 2003 , pp. 36-46 More about this Journal
Abstract
To investigate the affection of lumped mass and spring on the vibration power flow of cross-stiffened plate experiencing bending vibration, structural intensity analysis is done using the modal analysis based on assumed mode method. The numerical analysis is carried out varying the mass and spring constant and their attached positions. The results show that both the spring and the mass may cause to large variation of not only vibratory displacement but also vibratory power flow patterns in case of little change of natural frequencies, and the attachments near to excitation location can effectively reduce the magnitude of maximum structural intensity.
Keywords
Stiffened Plate; Structural Intensity; Lumped Attachment; Modal Analysis;
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