基于侧斜的螺旋桨优化设计  

Optimization Design of Propeller Based on Skew

作　　者：任万龙 郝宗睿[1] 周忠海[1] 张浩[1] 刘英和[1] 

机构地区：[1]山东省科学院海洋仪器仪表所,山东青岛266001

出　　处：《船舶工程》2016年第S2期148-151,共4页Ship Engineering

基　　金：国家自然科学基金资助项目(51206101)

摘　　要：螺旋桨的螺距、纵倾、侧斜、剖面参数等众多几何参数综合决定着螺旋桨的水动力性能,在进行螺旋桨优化设计的过程中,需要以这些参数为优化变量进行优化。文章以粒子群算法为工具,基于面元法理论,以侧斜为优化变量,推力系数为限制条件,敞水效率为优化目标,对螺旋桨进行优化设计。侧斜用贝塞尔曲线拟合方式进行表达,给定一定的变化范围,符合优化过程中的实际变化。对优化结果进行分析,螺旋桨敞水效率提高,同时改善了桨叶表面的压力分布,有利于延迟空泡的产生;优化桨在0-1的进速中敞水效率均比原桨提高。The all geometric parameters like pitch,rake,skew,section of propeller determine the hydrodynamic performance of propeller.In the process of propeller optimization design,these parameters can be used as optimization variables to do the work of propeller optimization design.In this paper,which skew is used as optimization variables,trust coefficient is restrictive condition;open water efficiency is optimization objective,based on particle swarm optimization algorithm and panel method to do the optimization design of propeller.In fact,the Bessel curve method is used to express rake and skew practically with certain range of variation.After optimization,the optimization result is analyzed and shows that open water efficiency of propeller improved and the pressure distribution of propeller also improve which can delay cavity occur of propeller;in the range 0-1 of advance coefficient region open water efficiency of optimized propeller improve than original propeller.

关 键 词：侧斜 粒子群算法 面元法 螺旋桨 敞水效率 推力系数 

分 类 号：U664.33[交通运输工程—船舶及航道工程]