圆柱形弹性贮液容器的自振特性分析

贮液容器，无论是由钢材制成的或是由钢筋混凝土建造的。在工业或工程上都有着广泛的应用，如石油化工工业中的储油罐，给水工程中的水即为典型例子。在核动力工程中的压水堆或快增残堆，所用的主容器都可看成为一种特殊的贮液容器。它与一般容器很大的区别在于除贮液外，在堆内还设置一些构件。这对结构分析计算速写为不小的困难。本文根据剪切悬壁梁理论且考虑液动压力效应，建立了弹性圆柱形贮液容器的自振方程及相关特征值矩阵，

Free Vibrational Characteristic Analysis for an Elastic Cylindrical Liquid Storage Tank

Liquid storage tanks, which are either manufactured from steel or made of reinforced concrete, have wide applications in industry or in engineering areas. For example, the storage tanks for storing oil in petrochemical industry, pool - type storage tanks in water - supply engineering are typical cases, in the nuclear power industry in pressure water reactor or in fast breeder reactor the tanks can be considered as an special tank. With exclusion of liquid it includes many structural elements. It is very difficult to analysis for this tank. In accordance with shearing cantilever -beam theory and considering the effects of liquid dynamic presure, free vibrational equation and interrelated characteristic value matrix for elastic cylindrical liquid storage tank are both established in this paper. Two tanks to be made of reinforced concrete and steel respectively as numerical examples are computered. The result shows that more flexible a liquid storage tank is, more liquid pressure influences its frequency.