Effect of Skew Distribution on Strength of Ice Class Propellers
In order to study the effect of skew on the strength property of the ice class propeller,a program is written to realize the full parametric operation of the propeller finite element mesh,and the irrelevance of the finite element calculation is verified.On this basis,by changing the distribution of the propeller blade skew and performing the finite element strength calculation according to the five load loading conditions specified by the China classification society(CCS)regulations,the variation law of the propeller blade deformation and maximum stress with skew is obtained.The results show that there is an optimal non-zero skew that minimizes the concentrated stress or deformation on the propeller under specific operating conditions.The conclusion implies that the stress concentration on the propeller can be reduced by adjusting the propeller skew distribution.
ice class propellerside-slope scale factorstrengthstress