预报船舶在波浪中航行时相对运动的一个实用模型  

A MODEL FOR PREDICTING THE RELATIVE MOTION OF SHIPS IN REGULAR WAVES WITH FORWARD SPEED

作　　者：朱林生[1] 戴遗山 周正全[3] 孙伯起[3] 

机构地区：[1]华中理工大学 [2]哈尔滨船舶工程学院 [3]中国船舶科学研究中心

出　　处：《中国造船》1994年第2期9-19,共11页Shipbuilding of China

摘　　要：本文讨论了绕射波引起的船舶与自由面之间的相对运动分量。在用三维理论计算绕射效应时，自由面上仍用零航速时的条件，只是把其中的自然频率改成遭遇频率，更重要的是考虑了由此引起的船舶水线附近的流场奇异特性．数值结果表明，本文的模型计算结果稳定性与实验结果吻合很好．另外，由于模型中航速影响计及在遭遇频率中，因而本文模型对较高航速也是适用的．The relative motion between a ship and the sea surface for diffi-acted wave systems is discussed. Based on 3-D theory the zero speed free surface condition is still used in the calculation of diffraction emet, but the frequency of encounter is substituted for the naturalfrequency. Moreover, the singularity of potential flow in the vicinity of intersaction points between the body and free surface is considered. Comparisons for a simple mathematical full form are given, it shows that the proposed method gives significant improvement over other theoretical results and is in good agreement with experimental data.

关 键 词：船舶耐波性 相对运动 绕射波 

分 类 号：U661.322[交通运输工程—船舶及航道工程]