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双层储液罐的动力稳定分析
The Dynamic Stability Analysis of Two-Layer Cylindrical Liguid Tanker
【摘要】 对双层圆柱形储液罐动力稳定性进行了分析.使用有限元法和解析法相结合的方法,考虑阻尼产生的几何刚度矩阵,在竖向载荷下,求解动力稳定性问题.由于考虑阻尼产生的几何刚度矩阵,当结构自由度数目较大时,直接求解方程是困难的.使用二次摄动法使求解得到简化。
【Abstract】 An analysis is conducted on the dynamic stability of two-layer cylindrical liquid storage tankers. By combining finite element method with analgtics, with the geometric stiffness matrix produced by damping taken into account, the analysis is made to solvedynamic stability under vertical load. As is difficult to solve the equation when freedom of structure is big, quadratic pertarbation method is applied to simplify the solution.
【关键词】 双层壳;
动力稳定;
几何刚度矩阵;
二次摄动;
储罐;
【Key words】 Two-layer shells; Dynamic stability; Geometric stiffness matrix; Quadratic pertarbation; Storing liquid tanker;
【Key words】 Two-layer shells; Dynamic stability; Geometric stiffness matrix; Quadratic pertarbation; Storing liquid tanker;
- 【文献出处】 抚顺石油学院学报 ,Journal of Fushun Petroleum Institute , 编辑部邮箱 ,1995年01期
- 【分类号】TB123
- 【被引频次】3
- 【下载频次】47