reducing the order of a large structural finite element model is important in improving the efficiency of finite element analysis in the field of structural dynamics and vibration.
对大型复杂结构振动有限元模型进行减缩降阶,是使结构有限元模型可有效地用在结构动力分析和振动计算方面的一个重要措施。
this paper presents a effective method dealing with step elastic supports in structural finite element analysis by inducing elastic support stiffness and structural displacement support matrices.
本文通过引入弹性约束刚度矩阵和结构位移约束列阵,提出了结构有限元分析中处理阶跃型弹性约束的一种有效方法。
the dynamic calculations of the model and prototype structures are also made using structural finite element analyses programs and the results are compared and analyzed with the test.
同时,应用结构有限元分析程序对模型及原型结构进行动力计算,并将两种结果进行比较分析。
applying the theory of structural finite element method, the corresponding structural analysis program system is developed.
结合结构有限元的理论,研制了相应的结构分析程序系统。