具有非轴对称缺陷双曲冷却塔的动力有限元解
Dynamic Solution of Hyperbolic Cooling Tower with Nonsymmetric Imperfections by Finite Element Method
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摘要: 本文针对双曲冷却塔非轴对称缺陷的动力问题,提出了一种解决谐波间耦合问题的近似方法.利用这种方法,本文对具有一般局部几何缺陷双曲冷却塔旋转壳的频率和动力响应进行了分析和计算.Abstract: In this paper, an apprf dmate method is established to solve the couple problem between different harmonic waves in terms of the needs of nonsymmetric imperfections of cooling tower. By means of this method, the frequencies and response of rotational shell with local geometric imperfections are analysed and calculated.
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[1] 卢文达、高世桥,具有局部几河决陷旋转壳的自然频率分析,第二届全国计算力学会议论文177号,上海(1986,8). [2] 钱源耀,具有分市裂纹的双曲冷却塔的自由振动和阵风响应分析,第三届华东固体力学学术讨论会论文,安徽九华山(1986,10). [3] 李龙元、卢文达,加肋双曲冷却塔动力响应的渐近分析去——摄动有限元解,应用数学和力学,8,7(1987),603-610. [4] 卢文达、林宝庆,轴对称几何决陷对双曲冷却塔壳体阵风响应的影响,上海工业大学学报,3(1984).
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