摘要
从弹性壳体的无量纲控制方程出发,研究了一类薄环板与扁薄锥壳组合结构在横向均布载荷和温度载荷作用下的大挠度非线性振动问题.采用打靶法对周边固定的问题进行了数值求解,分析和讨论了组合结构的固有频率与外载荷、锥底和环板半径比例、扁壳锥度的非线性关系以及结构刚度的变化.
Based on dimensionless governing equations of an elastic shell, nonlinear vibration of a structure composed of a thin annular plate and a shallow conical shell under the action of uniform transverse load is studied. The shooting method is used to obtain the numerical solutions for vibration problem with clamped edge boundary condition, and the effects of transverse load, ratio of plate radius to the shell base radius, and cone's vertex angle on the natural frequencies of the structure are investigated and discussed. Finally, variations in the structural rigidity are discussed, also.
出处
《甘肃工业大学学报》
CAS
北大核心
2003年第3期139-142,共4页
Journal of Gansu University of Technology
基金
甘肃省自然科学基金(ZS022 A25 002)
