数学物理学报 ›› 1998, Vol. 18 ›› Issue (2): 206-216.

• 论文 • 上一篇    下一篇

大几何参数的变厚度开顶扁薄壳的非线性屈曲问题的奇摄动解

康盛亮   

  1. 同济大学应用数学系 上海 200092
  • 收稿日期:1996-09-16 修回日期:1996-11-25 出版日期:1998-06-26 发布日期:1998-06-26

The Singular Perturbation Solutions for Nonlinear Buckling of a Truncated thin Shallow Shell of Variable Thickness with the Large Geometrical Parameter

Kang Shengliang   

  1. Tongji University, Shanghai 200092
  • Received:1996-09-16 Revised:1996-11-25 Online:1998-06-26 Published:1998-06-26

摘要: 该文利用修正多重尺度法研究了大几何参数的变厚度的具有刚性中心的开顶扁球壳,在均布载荷作用下的非线性稳定问题.求得了扁壳几何参数k值较大时,本问题的一致有效的渐进解,并进行了余项误差估计.

关键词: 变厚度扁壳, 非线性屈曲, 奇异摄动

Abstract: Using Modified method of mutiple scales,the nonlinear stability of a truncated shallow spherical shell of variable thickness with a nondeformable rigid body at the center under uniformly distributed loads is investigated in this paper. When the geometrical parameter k is large,the uniformly valid asymptotic solutions of this problem are obtained and the remainder terms are estimated.

Key words: Shallow shell of variable thickness, Nonlinear bucking, Singular perturbation