摘要
在完成结构刚度矩阵计算的前提下,以桁架结构和矩形截面悬臂板为模型,利用有限元程序ANSYS进行建模,分析了不同类型的结构在温度变化作用下的响应,从而得知温度变化对桁架结构的模态参数影响不大,而对矩形截面悬臂板梁的模态参数有一定的影响。
After the rigidity matrix calculations, the FEM analysis program ANSYS is used to create models, with the truss structure and box cross-sectioned cantilever board beam as models. Then the authors simulate these structures＂ responses to temperature changes, from the result of which it is found that the change of environmental temperature has little influence on the modal parameters of the truss, but has certain influence on the modal parameters of the cantilever board beam, which cannot be neglected.
出处
《国防交通工程与技术》
2007年第1期26-29,共4页
Traffic Engineering and Technology for National Defence
关键词
桁架
悬臂板
刚度矩阵
温度影响
模态参数
truss
cantilever board beam
rigidity matrix
influence of temperature
modal parameters
