| 基于风洞试验和CFD技术的桥梁抖振荷载研究 |
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| 引用本文： | 刘婷婷,张文首. 基于风洞试验和CFD技术的桥梁抖振荷载研究[J]. 武汉理工大学学报, 2011, 0(1): 95-99 |
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| 作者姓名： | 刘婷婷 张文首 |
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| 作者单位： | 大连理工大学工业装备结构分析国家重点实验室; |
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| 基金项目： | 国家自然科学基金(90815023) |
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| 摘 要： | 结合风洞试验与CFD(Computational Fluid Dynamics)技术提出了一种新方法。该法首先利用CFD确定桥梁表面压力分布及节段模型弹性中心的三分力系数,然后根据风洞试验结果采用最小二乘法确定桥梁节点力荷载。该方法克服了CFD模拟得到的三分力系数通常与风洞试验结果不符的缺点,给出了确定桥梁节点力荷载的有效途径。
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| 关 键 词： | 风洞试验 计算流体动力学 三分力系数 抖振 最小二乘法 |
Research on Buffeting Loading on Bridge Decks Based on Wind Tunnel Test and CFD Technology |
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| LIU Ting-ting,ZHANG Wen-shou. Research on Buffeting Loading on Bridge Decks Based on Wind Tunnel Test and CFD Technology[J]. Journal of Wuhan University of Technology, 2011, 0(1): 95-99 |
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| Authors: | LIU Ting-ting ZHANG Wen-shou |
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| Affiliation: | LIU Ting-ting,ZHANG Wen-shou(State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | A new method of combined wind tunnel test and CFD technology is proposed.CFD calculations are firstly carried out to determine the surface pressure of the bridge and three static aerodynamic coefficients of elastic center in sectional models,then the least-squares method is used to determine nodal loads on bridges.The combined method overcomes the deficiencies that three static aerodynamic coefficients obtained by CFD are out of accord with the results obtained by wind tunnel test and gives an effective way... |
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| Keywords: | wind tunnel test computational fluid dynamics (CFD) three static aerodynamic coefficients buffeting least-squares method |
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