基于CFD的舵机选型方法

摘要

本文通过对常规舵机选型方法局限性的分析,提出一种新的舵机选型方法.先利用CFD技术得出舵杆力矩曲线,然后在确定舵机舵柄、油缸参数的情况下,做出系列不同系统压力下的舵机扭矩曲线,最后通过舵杆力矩曲线与系列舵机扭矩曲线的对比,确定舵机系统压力和舵机扭矩.该方法可实现舵的选型设计由船舶设计方、舵机生产方及船舶建造方三方共同参与完成.%In this paper, a new method of steering gear selection is proposed based on the analysis of the limitation of conventional steering gear selection methods. First, get rudder moment curve by CFD calculating. Then, make a series of steering torque curve under different system pressures after the rudder tiller and cylinder parameters were determined. At last, by comparing the rudder moment curve with series of steering torque curves, obtain steering torque and steering system pressure. Three parties, the ship designer, steering gear manufacturer and ship builder, are involved together in steering gear selection which is required by this method.