한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2001년도 추계학술대회논문집 II
- /
- Pages.1061-1066
- /
- 2001
- /
- 1598-2548(pISSN)
파워흐름해석 프로그램을 이용한 2300 TEU 컨테이너선의 중고주파 대역 진동해석
Vibration analysis of 2300 TEU container ship using power flow analysis program in medium-to-high frequency ranges
초록
To predict vibrational energy density and intensity of beam-plate coupled complex structures in medium-to-high frequency ranges, Power Flow Finite Element Method(PFFEM) programs for plate, beam and some coupled structural elements are developed. The flexural, longitudinal and shear waves in plates are formulated and the joint element equations for multi-couped plates are fully developed. Also the wave transmission approach has been introduced to cover the energy transmission and reflection at the joint elements. Using the developed PFFEM program, vibration analysis for 2300TEU container ship model is performed and here the model data for this program are obtained by converting fonner FE model for structural analysis. This program predicts successfully the vibrational energy density and intensity upto 8,000 Hz for the ship model with over 50,000 DOF.
키워드