摘要
研究了在任意轴对称边界条件下的圆柱壳的自由振动优化设计问题 ,即寻求圆柱壳的最优厚度分布使自振基频极大化。利用半解析元方法分析轴对称变厚度圆柱壳的自由振动 ,将求解自振基频归为求解广义特征值方程 ,使圆柱壳振动优化设计成为极大化最小特征值问题。典型算例表明了本方法的有效性。
The present study is concerned with the optimal design of cylindrical shell on free vibration with arbitrary axisymmetrical boundary conditions under the condition of the volume being constant.The problem involves the maxi minimal fundamental frequency of the cylindrical shell.Fundamental frequency of shell is analysed by the finite element method.Numerical results show the effectiveness of the method reported.
出处
《洛阳工学院学报》
2002年第3期94-97,共4页
Journal of Luoyang Institute of Technology
基金
河南省科技攻关项目 (0 0 40 5 170 0 )
