摘要
本文利用表观弹性法的理论,给出圆柱体耦合振动的等效线路,讨论了圆柱耦合振动的频率方程及负载阻抗对共振频率的影响.并由等效线路计算了圆柱体输入机械阻抗及径向与纵向表现振速比随其几何尺寸变化的关系曲线.计算及实验结果表明,利用等效线路研究圆柱的耦合振动,物理意义明显,计算过程简单.
Based on the apparent elasticity method, the equivalent circuit of coupling vibration of a short column is presented. By using the equivalent circuit, the authors derived the frequency equation and analyzed the effect of load impedance on the resonant frequency of the short column and at the same time calculated the input impedance and the apparent radial-to-longitudinal vibrating velocity ratio as a function of l/α. The results show that the analyses and calculations of a short column can be simplified and rational designs of this kind of column as a radiator working in liquid medium can easily be attained. These experiments indicate that the measured frequency agrees well with the designed one and the rationally designed column is a kind of high power radiator in the liquid medium.
出处
《陕西师大学报（自然科学版）》
CSCD
1989年第2期33-37,共5页
Journal of Shaanxi Normal University(Natural Science Edition)
