摘要
桨毂动力特性用八节点三维等参元与子空间迭代法进行数值模拟 ;进行了实验模态分析 ,从而确定了桨毂前六阶的固有频率及其对应的振型。
The finite element method with 8 nodes three dimensional isoparametric elements and subspace iteration is applied to digital simulation of dynamic characteristics of a propeller hub.The sizes of the stiffness matrices[K]and mass matrices[M]in the equations are very large.The natural frequencies of the first six orders and its corresponding modes of the hub have been obtained from the experimental modal analysis.By comparison the results of the experimental modal analysis and the digital simulation are of the same order.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1991年第4期331-336,共6页
Journal of Aerospace Power
