论文部分内容阅读
本文对一个叠层板型堆芯元件实验模型的干模态固有频率和振型进行了理论、数值分析，作者将该结构视为多层平行梁与整体单梁的对接问题，根据各梁的振型方程及对接处的连续性条件和平衡条件，建立了确定固有频率与振型系数的特征方程，并采用隐式选代法对其进行数值求解．文中给出了部分固有频率与振型曲线的计算结果，其固有频率与实验测试结果相当吻合．
In this paper, a theoretical and numerical analysis of the dry mode natural frequency and mode shape of an experimental model of a laminated core-type reactor is carried out. The author considers this structure as the connection between the multi-layer parallel beam and the integral single beam. The vibration mode equation and the continuity conditions and equilibrium conditions at the butt joint, a eigenvalue equation for determining the natural frequency and the mode shape coefficient is established and the implicit substitution method is used to solve the numerical equation. The calculation results of some natural frequencies and mode shapes are given in this paper. The natural frequencies are in good agreement with the experimental results.