船体操纵运动水动力计算中的小展弦比机翼理论之改进及其应用  

A STUDY ON CALCLLATING HYDRODYNAMIC FORCES ACTING ON A SHIP IN MANEUVERING MOTION

作　　者：张耀东[1] 

机构地区：[1]上海交通大学

出　　处：《中国造船》1989年第3期53-60,共8页Shipbuilding of China

摘　　要：本文改进了用于计算船体操纵运动水动力的小展弦比矩形平板机翼理论,建立了自由涡线的流出角沿弦向变化的升力面模型,以此,对多个船体模型的定常操纵运动水动力作了数值计算,并探讨了浅水中的双体船的操纵运动水动力的理论计算。In this paper, the theory of small aspect ratio wing for calculating theforces acting on a maneuvering ship is investigated. A new theory of smallaspect ratio wing is developed assuming that the angles of trailing vorticeswith respect to the wing plate are variable along the chord The computedresults of several rectangular wings of small aspect ratio are compared withtest data and show better agreement than those obtained by Bollay′s, Gerstents arid Sugaits method. ,.Applying the next theor,y to calculate the maneuv=ering hydrodynamic to-.rces acting on catamarans in deep water and monohulls in shallow water, it'also gives satisfactory conclusions.' ,Furthermore, calculation of hydrodynamic forces acting on a maneuve-'~ring catamaran in shallow water is studied and some ~results are presented.

关 键 词：小展弦比机翼 操纵运动 涡线 水动力计算 机翼理论 自由涡 双体船 升力面 诱导速度 弦向 

分 类 号：U671[交通运输工程—船舶及航道工程]