强耦合法在膜结构风振流固耦合分析中的程序实现与应用

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (6) : 213-217.

论文

强耦合法在膜结构风振流固耦合分析中的程序实现与应用

孙芳锦1,2;殷志祥3;顾明 1

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Implementation and application of strongly coupled program in fluid-structure interaction analysis in wind-induced vibration of membrane structures

SUN Fangjin1,2;YIN Zhixiang3; GU Ming1

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摘要

研究强耦合整体方法在膜结构风振流固耦合效应分析中的程序实现与应用。基于强耦合整体式方程，介绍了采用Fortran语言编写膜结构流固耦合效应计算程序的实现过程，以及程序实现中需要的数值计算方法。对计算程序中的重要求解步骤进行了分析，介绍了相应程序的实现过程。最后将强耦合整体方法计算程序应用于典型膜结构的风振流固耦合计算中，得到了结构在不同风向角下考虑和不考虑耦合效应时的风压系数，其结果与已有风洞试验结果基本一致。同时计算了膜结构的风振响应和周围流场的分布。结果证明提出的强耦合整体方法程序适用于计算膜结构风振中的流固耦合效应，结果正确可靠

Abstract

Implementation and application of strongly coupled program in fluid-structure interaction analysis in wind-induced vibration of membrane structures are studied. Based on simultaneous strongly coupled equations, program implementation process of calculating fluid-structure interaction in wind-induced vibration of membrane structures using Fortran, and the numerical methods needed in the program are both presented. Corresponding implementation process is given when important procedures in the calculation program are analyzed. Finally, the program is applied in the calculation of fluid-structure interaction in wind-induced vibration of a typical membrane structure. Wind pressure coefficients are computed when considering and not considering interaction effects under different wind azimuths, respectively. The results compare well with those obtained from the existing wind tunnel test. Meanwhile, wind-induced responses and flow distribution around the membrane structure are computed as well. It is shown that the presented strongly coupled method and its program are valid and accurate in computing fluid-structure interaction analysis in wind-induced vibration of membrane structures

导出引用

孙芳锦;殷志祥;顾明 . 强耦合法在膜结构风振流固耦合分析中的程序实现与应用[J]. 振动与冲击, 2011, 30(6): 213-217

SUN Fangjin;YIN Zhixiang;GU Ming. Implementation and application of strongly coupled program in fluid-structure interaction analysis in wind-induced vibration of membrane structures[J]. Journal of Vibration and Shock, 2011, 30(6): 213-217