摘要
本文根据双曲冷却塔旋转壳在建造中将产生随机几何缺陷这一特点,对具有一般随机几何缺陷旋转壳的动力特性进行了分析。结果表明,考虑随机几何缺陷后,系统的低阶固有频率将降低,内力阵风响应因子将升高。
In this paper, dynamic characteristics of a rotational shell having random geometric imperfections are analysed, as viewed from its engineering structure. It is shown that, the basic natural frequency will decrease and the internal force response factor will increase if the random geometric imperfections are taken into consideration.
出处
《北京理工大学学报》
EI
CAS
CSCD
1989年第1期61-66,共6页
Transactions of Beijing Institute of Technology
关键词
冷却塔
旋转壳
几何缺陷
阵风响应
rotational shell,random,geometric imperfections, cooling tower, wind response.
