Vibration Analysis of Plate with Irregular Cracks by Differential Quadrature Finite Element Method

被引：6

作者：

Xu, Zhongyuan ^{[1
,2
]}

Chen, Wei ^{[1
]}

机构：

[1] Harbin Engn Univ, Sch Econ & Management, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

SHOCK AND VIBRATION | 2017年 / 2017卷

关键词：

COMPOSITE STRUCTURES; GRADED PLATES; SHELLS; BEAMS;

D O I：

10.1155/2017/2073453

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A universal method combining the differential quadrature finite element method with the virtual spring technique for analyzing the free vibration of thin plate with irregular cracks is proposed. Translational and rotational springs are introduced to restrain the vertical displacement and orientation of the plate. The mass matrix and stiffnessmatrix for each element are deduced involving the effects of the virtual springs. The connection relationships between elements can be modified by setting the stiffness of the virtual springs. Thevibration of two rectangular plates with three irregular shaped cracks and different boundary conditions are presented. The results are compared with those obtained by ANSYS, where the good agreement between the results validates the accuracy and efficiency of the present method.

引用

页数：13

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