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| 基于定常吸气方式的大跨桥梁风致颤振抑制方法 | |
| 引用本文： | 辛大波,欧进萍,李惠,李忠华.基于定常吸气方式的大跨桥梁风致颤振抑制方法[J].吉林大学学报(工学版),2011,41(5):1273-1278. |
| 作者姓名： | 辛大波 欧进萍 李惠 李忠华 |
| 作者单位： | 1. 哈尔滨工业大学土木工程学院,哈尔滨,150090 2. 哈尔滨工业大学土木工程学院,哈尔滨150090／大连理工大学土木水利学院,辽宁大连116024 3. 中油吉林化建工程有限公司,吉林省吉林市,132021 |
| 基金项目： | 国家自然科学基金项目(50908069) |
| 摘 要： | 以改善桥梁断面空气动力特性,提高大跨桥梁风致颤振稳定性为目的,提出了基于绕流控制原理的定常吸气方法。以我国虎门大桥为研究对象,采用基于计算流体动力学的数值方法模拟来流风与桥梁断面定常吸气共同作用下的桥梁断面绕流风场。采用Scanlan颤振分析方法分析了该桥梁在定常吸气作用下的颤振稳定性。计算结果表明,吸气作用使主流更加贴近壁面,降低了模型扭转运动下的气动扭矩,定常吸气提高了大跨桥梁的风致颤振稳定性。 |
| 关 键 词： | 道路工程 大跨桥梁 颤振 定常吸气 |
Suppression method for wind-induced flutter of long-span bridge based on steady air-suction |
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| XIN Da-bo,OU Jin-ping,LI Hui,LI Zhong-hua.Suppression method for wind-induced flutter of long-span bridge based on steady air-suction[J].Journal of Jilin University:Eng and Technol Ed,2011,41(5):1273-1278. | |
| Authors: | XIN Da-bo OU Jin-ping LI Hui LI Zhong-hua |
| Affiliation: | XIN Da-bo1,OU Jin-ping1,2,LI Hui1,LI Zhong-hua3(1.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China,2.School of Civil & Hydraulic Engineering,Dalian University of Technology,Dalian 116024,3.China Petroleum Jilin Chemical & Engineeing Construction Co.,Ltd.,Jilin 132021,China) |
| Abstract: | A steady air-suction method was proposed based on the wind flow control around the long-span bridge deck section to improve the aerodynamic characteristics of the bridge section and the flutter stability of the bridge.The Humen bridge in China was adopted as the research object.The wind field around the bridge section under the interaction of the wind inflow and the steady air-suction on the bridge deck undersurface was simulated using the numerical method based on the computational fluid dynamics.The flutt... |
| Keywords: | road engineering long-span bridge flutter steady air-suction |
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