三桨船船模自航试验推进因子分析方法探讨

A Discussion on the Analysis Method of Three Screw Ship′s Prapulsive factor Based on Model Self Propulsion Test

三桨船船模自航试验时，由于三个螺旋桨之间会发生相互干扰，各螺旋桨的负荷及克服的阻力也不尽相同．本文对三桨船自航试验推进因子的分析方法进行了比较、分析；提出应首先按螺旋桨的有效推力来分配各桨克服的船的阻力，再进行推进因子分析的数据分析新方法．

When Carrying out the model self propulsion test of three screw ship, due to the interfere of the propellers, the load of each propeller or the resistance it overcomes may be different from each other. This paper gives a comparsion and a discussion on an data processing method of the model self propulsion test of three screw ship, and proposes a new data processing method which firstly determines the resistance overcomed by each propeller based on the propeller's effective thrust and then carries out the propulsive factor analysis.