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Structural Engineering and Mechanics Volume 6, Number 6, September 1998 , pages 613-632 DOI: https://doi.org/10.12989/sem.1998.6.6.613 |
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Dynamic characteristics and response analysis of accelerating underwater structures |
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Liu ZX
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| Abstract | ||
| A coupling system for a structure accelerating through a fluid is considered which is composed of the structure and the fluid in a finite surrounding volume. Based on the variational principle, the finite element equations of hydrodynamic pressure and structural elastic vibration are deduced. A numerical method is given for the dynamic character and response of the structure which takes the coupled fluid into account. The effect of axial inertial forces on the dynamic character and response of rapidly accelerating structures is also considered. | ||
| Key Words | ||
| structure/fluid interaction, dynamic response, added mass | ||
| Address | ||
| Liu ZX, Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200030, Peoples R China Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200030, Peoples R China Univ Cardiff, Cardiff Sch Engn, Div Struct Engn, Cardiff, S Glam, Wales | ||