基于波动法的静水压力下环肋圆柱壳耦合振动特性研究

PDF(1407 KB)

振动与冲击 ›› 2014, Vol. 33 ›› Issue (21) : 142-147.

论文

基于波动法的静水压力下环肋圆柱壳耦合振动特性研究

梁斌1，李戎2，刘小宛1，NODA Nao-Aki2，徐红玉1

作者信息 +

Study on coupled vibration of ring-stiffened cylindrical shells subjected to hydrostatic pressure using wave propagation method

LIANG Bin1, LI Rong2, LIU Xiaowan1, NODA Nao-Aki2, XU Hongyu1

Author information +

文章历史 +

摘要

研究了静水压力下环肋圆柱壳的振动特性。在Flügge理论的基础上，考虑流体的影响，通过变换轴向波数，先后采用波动法和牛顿迭代法得到了不同边界条件下环肋圆柱壳的固有频率值。经过与已有文献数据进行对比，验证了本文研究的有效性和正确性。通过算例，分析了静水压力、肋条截面尺寸和数目、边界条件等因素对水下环肋圆柱壳固有频率的影响。

Abstract

Based on the Flügge’s shell theory, coupled vibration characteristic of submerged ring-stiffened cylindrical shell under hydrostatic pressure is examined. By means of conversion switch on axial wave number, the coupled frequency of submerged FG cylindrical shell with various boundary conditions is obtained, using wave propagation method and Newton method. Results are compared to known solutions, where these solutions exist. The natural frequency of ring-stiffened cylindrical shell is studied. The effects of hydrostatic pressure, size and number of rib and boundary condition on the natural frequencies of submerged ring-stiffened cylindrical shell are illustrated by examples.

导出引用

梁斌;李戎;刘小宛;NODA Nao-Aki;徐红玉. 基于波动法的静水压力下环肋圆柱壳耦合振动特性研究[J]. 振动与冲击, 2014, 33(21): 142-147

LIANG Bin;LI Rong;LIU Xiaowan;NODA Nao-Aki;XU Hongyu. Study on coupled vibration of ring-stiffened cylindrical shells subjected to hydrostatic pressure using wave propagation method[J]. Journal of Vibration and Shock, 2014, 33(21): 142-147