Six Degrees of Freedom Ship Motion Mathematical Model in Irregular Wave!
For developed irregular waves,wave heights or wave amplitudes are gained using the wave spectrums. Based on the hypothesis of Froude-Krylov,ship shape is predigested box. Wave forces and moments to ship motion can be calculated. They are added in the motion mathematical models,and ship six degrees of freedom mathematical models are given. Using the fourth order Runge - Kutta integration method solves differential equations. The mathematical models were applied to Full Mission Ship Handling Simulator. Six degrees of freedom of the ship: the location,attitude and speed and acceleration are passed to the navigation simulator in the other modules,in order to achieve interaction between human and computer. As an example,a cargo ship that its displacement was ten thousands tons were simulated in three sea states,the time histories of motion are good and the viewing scene is very vivid. The results are shown that the mathematical models can meet the engineering demands.
Ship maneuverability Ship motion mathematical model Irregular wave Six Degrees of Freedom Ship-handling simulator Human-machine interactive
Zhang Xiufeng Jin Yicheng Yin Yong
Navigation College,Dalian Maritime University,Dalian 116026,China
国际会议
南宁
英文
324-327
2010-12-10（万方平台首次上网日期，不代表论文的发表时间）