摘要
针对船舶横摇转动惯量进行测量,传统的实验法实验条件复杂且结果误差较大,因此提出2种更适合于计算船舶横摇转动惯量的方法。一是基于UG进行船模三维建模求解转动惯量,操作简单,效率高,由计算机自主完成;二是通过理论计算近似得出船舶模型横摇的转动惯量。总结了2种方法的优缺点,同时对2种方法进行误差分析,得到2种经济高效的计算转动惯量的方法。并将建好的三维模型导入有限元软件,进行船舶横摇仿真分析,研究船舶横摇的运动规律。
In view of the current measurement of the ship's roll moment of inertia,the traditional experimental method is difficult to calculate and the result error is large.Two methods are more suitable for calculating the ship's roll moment of inertia.Firstly,based on UG,the three-dimensional modeling of ship model is used to solve the moment of inertia.The operation is simple and the efficiency is high,which is completed by the computer.Secondly,the moment of inertia of the ship model is obtained by theoretical calculation.Summarizing the advantages and disadvantages of the two methods,and comparing the two methods for error analysis,two cost-effective methods for calculating the moment of inertia are obtained.The built 3D model is imported into the finite element software,and the ship rolling simulation analysis is carried out to study the motion law of ship rolling.
作者
徐亚杰
Xu Yajie(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2020年第8期92-96,共5页
Agricultural Equipment & Vehicle Engineering
关键词
船舶横摇
三维建模
误差分析
转动惯量
仿真分析
ship roll
three-dimensional modeling
error analysis
moment of inertia
simulation analysis
