The paper employs three dimensional hydroelastic theory to describe the afterbody structure and surrounding water unifiedly to establish a hydroelastic analysis approach.It lays emphasis on the development of the meth...The paper employs three dimensional hydroelastic theory to describe the afterbody structure and surrounding water unifiedly to establish a hydroelastic analysis approach.It lays emphasis on the development of the method for calculating the afterbody vibration and the development of a software system for the hydroelastic analysis of the afterbody vibration with pre and post processing systems.A special beam element device connecting FE model and beam model to simulate the ship structures is proposed and the general principles are given to determine the relevant parameters of the special beam elements.The afterbody vibration of a ship and its dynamic responses under the excitation of the propeller induced forces are calculated by the software system developed by the author.The numerical results obtained are compared with the measured results.They are in good agreement.Thereby,the reliability and practicability of the method and software system developed in the paper are validated.展开更多
文摘The paper employs three dimensional hydroelastic theory to describe the afterbody structure and surrounding water unifiedly to establish a hydroelastic analysis approach.It lays emphasis on the development of the method for calculating the afterbody vibration and the development of a software system for the hydroelastic analysis of the afterbody vibration with pre and post processing systems.A special beam element device connecting FE model and beam model to simulate the ship structures is proposed and the general principles are given to determine the relevant parameters of the special beam elements.The afterbody vibration of a ship and its dynamic responses under the excitation of the propeller induced forces are calculated by the software system developed by the author.The numerical results obtained are compared with the measured results.They are in good agreement.Thereby,the reliability and practicability of the method and software system developed in the paper are validated.
