An Approximate Method of a Composite Plates Modal Analysis using Modified Spatial Function
There has been a great amount of study for modal analysis of a composite plate with a torsion spring due to plate-type structures with a torsion spring are widely used as aircraft wings,satellite,floors in bridges,ship hulls,building and so on.To perform modal analysis of a composite plate with a torsion spring,we need approximate methods and the finite element method because there are no exact solutions.The traditional researches have performed modal analysis of a composite plate with a torsion spring using approximate methods because approximate methods are more suitable than the finite element method in terms of parameters and sensitivity analysis.In this paper,we define the modified spatial function of a composite honeycomb sandwich panel with a torsion spring satisfied the geometrical and natural boundary conditions.Moreover this study presents an approximate method of modal analysis of a composite honeycomb sandwich panel with a torsion spring using defined spatial function and Ritz method.The present method can illustrate the natural frequencies and mode shapes of a composite honeycomb sandwich panel with a torsion spring including the stiffness of a torsion spring and specification of a composite plate such as dimension,aspect ratio and honeycomb cores characteristics.Furthermore this paper verifies the validity of a defined approximate method by comparing results of the finite element analysis.
Composite Honeycomb Sandwich Panel with a Torsion Spring Ritz Method Kirchhoff-Love Plate
Yongha Kim Myungjun Kim Sangbong Lee Kyungmin Hwang Jungjin Lee Jungsun Park
Graduate School of Korea Aerospace University,Goyang-si,Gyenggi-do,412-791,Repubilc of Korea Korea Aerospace Research Institute,45 Eoeun-dong,Yuseong-gu,Daejeon,305-806,Repubilc of Korea School of Aerospace and Mechanical Engineering,Korea Aerospace University,Goyang-si,Gyenggi-do,412-7
国际会议
2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)
上海
英文
1-7
2014-09-24（万方平台首次上网日期，不代表论文的发表时间）