摘要
本文采用有限元素法对某型螺旋桨及其改型桨桨叶的振动特性进行了计算和分析 ,以考查改型桨桨叶在使用中是否会出现危险的共振故障。
The subspace iteration method and Jacobi′s method are used to solve the eigenvalue problem for the vibration of a propeller blade,in which the superparametric quadratic thick shell element with eight nodes and forty degrees of freedom is used to govern the motion equation,considering the effects of shear transverse deformation on the accuracy.The frequencies and vibration modes calculated by the program written by authors are in quite good agreement with the experimental results,and they can be used to judge whether the resonance occurs in the operation of the propeller,considering the effects of aerodynamic force excitation only.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1991年第4期342-344,共3页
Journal of Aerospace Power
