带有环向肋的双曲冷却塔的线性稳定分析

卢文达; 顾皓中

带有环向肋的双曲冷却塔的线性稳定分析

上海应用数学和力学研究所, 上海工业大学

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出版历程
- 收稿日期: 1988-06-03
- 刊出日期: 1989-07-15

Buckling of Cooling Tower Shells with Ring-Stiffeners

Shanghai Institute of Appl. Math, and Mech., Shanghai University of Technology, Shanghai

摘要

摘要: 在对带有环向肋的双曲冷却塔的稳定问题的分析中,本文提出了线性前屈曲一致稳定理论.计算结果表明,本文的这种线性分析方法用于研究以承受风压为主的双曲冷却塔的临界载荷以及各种设计因素对塔壳屈曲的影响,其精度达到了非线性分析的水平,是工程分析中的一种很实用的有效方法.在此基础上,本文还较详细地讨论了加肋位置、数量及其自重对塔壳临界失稳风压值的影响,得到了一些于工程设计有用的结果.

Abstract: With the stability analysis of hyperbolic cooling tower shells with ring-stiffeners, our paper proposes the linear pre-buckling consistent theory. The numerical result shows that this linear analysis method is very effective and practical in engineering, for its precision of compulation is up to the level of the nonlinear analysis when it is used for the study of critical loads of the hyperbolic cooling tower which is mainly governed by wind pressure and for the study of the effect of some oilier factors concerned in design on the buckling of shells. Based on that, we have obtained a scries of conclusions which will greatly benefits the engineering design when discussing the effect on the critical windloading of the shell which is caused by the following factors such as the position of rings, the number of rings and the dead weight.

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参考文献(14)

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