考虑辐射散热叠层板热诱发振动的有限元分析  

FINITE ELEMENT METHOD ANALYSIS OF THERMALLY INDUCED VIBRATION OF LAMINATED PLATES CONSIDERING RADIATION

作　　者：赵寿根[1] 王静涛[1] 黎康[2] 刘一武[2] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191 [2]北京控制工程研究所,北京100080

出　　处：《力学学报》2010年第5期978-982,共5页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家重点基础研究计划(973-61378);凡舟基金(200705079)资助项目~~

摘　　要：通过在叠层板单层厚度方向上布置温度线的方法,求解了考虑辐射散热边界条件下的叠层板的瞬态温度场;在此基础上利用考虑剪切效应的高阶板位移场建立板振动的有限元方程,分析了叠层板的热诱发振动问题;通过算例与ANSYS三维耦合单元(Solid5)结果的对比表明,提出的计算模型和方法具有很好的计算效率和精度.Transient temperature field in laminated plates considering radiation is analyzed by laying temperature lines in every layer in this paper.Finite element equations are established by using high-order displacement field considering shear effect after the temperature analysis.Then thermally induced vibration of laminated plates is illustrated by solving the finite element equation with numerical method.It shows that the methods proposed in this paper have a better precision and more efficiency by comparing with numerical results of ANSYS with 3-D coupled element（Solid5）.

关 键 词：叠层板 辐射散热 热致振动 高阶位移场 有限单元法 

分 类 号：V214.3[航空宇航科学与技术—航空宇航推进理论与工程]