摘要
本文利用修正多重尺度法研究了大几何参数的具有刚性中心的边缘铰接的开顶扁球壳,在复合载荷作用下的非线性稳定问题。求得了扁壳几何参数h值较大时,本问题的一致有效的渐近解.
A problem of practical interest for nonlinear axisymmetrical stability of atruncated shallow spherical shell of the largz geometrical parameter with an ar-ticulated external edge and a nondeformable rigid body at the center under com-pound loads is investigated in this paper. By using modified method of multiplescales, the uniformly valid assyinptotic solutions of this boundary value problemare obtained when the geoinetrical parameter k is large.
出处
《应用数学和力学》
CSCD
北大核心
1995年第5期431-442,共12页
Applied Mathematics and Mechanics
基金
国家自然科学基金
关键词
扁球亮
屈曲
奇摄动
非线性稳定
壳体
shallow shell, boundary layer, singular perturbation