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A Hydroelastic Response Analysis of Ships with Forward Speed in Regular Waves  

Lee, S.C. (한국해양대학교 국가지정연구실)
Bae, S.Y. (부경대학교 조선해양시스템공학과)
Publication Information
Journal of Power System Engineering / v.14, no.5, 2010 , pp. 48-55 More about this Journal
Abstract
When a large ship is advancing in waves, ship undergoes the hydroelastic response, which has influences on structural stability and the fatigue destruction etc. of the ship. Therefore, to predict accurate hydroelastic response, it is necessary to analyze hydroelastic response including fluid-structure interaction. In this research, a ship is divided into many hull elements to calculate the fluid forces and wave exciting forces on each elements using three-dimensional source distribution method. The calculated fluid forces and wave exciting forces are assigned to nodes of hull elements. The neighbor nodes are connected with elastic beam elements. We analyzed hydroelastic responses, and those are formulated by using finite element method. Particularly, to estimate the influence of forward speed on the hydroelastic responses, we use two different methods : Full Hull Rotation Method(FHRM) and Sectional Hull Rotation Method(SHRM).
Keywords
Hydroelastic Response; Fluid-structure Interaction; Finite element Method; Three-dimensional Source Distribution Method;
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