| 二滩工程钢引桥风振试验研究 |
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| 引用本文： | 詹德新,王献孚.二滩工程钢引桥风振试验研究[J].实验流体力学,1996(1). |
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| 作者姓名： | 詹德新 王献孚 |
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| 作者单位： | 武汉交通科技大学 |
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| 摘 要： | 二滩水电站木材过坝机械系统中，斜坡段钢引桥节段模型风洞试验分别在光滑流和大湍流度条件下进行，包括涡激振和抖振试验，以及颤振临界风速和颤振导数测定。试验求得的结果可作为该钢引桥结构动力计算风振稳定性分析的依据。试验中提出的颤振导数提取的方法，是在风洞弹簧悬挂系统中附加动力天平条件下求得的，这是一种新的尝试。
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| 关 键 词： | 钢引桥 风振试验 颤振导数 |
TUNNEL TEST ON WIND-INDUCED VIBRATION OF STEEL BRIDGE |
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| Zhan Dexin,Wang Xianfu.TUNNEL TEST ON WIND-INDUCED VIBRATION OF STEEL BRIDGE[J].Experiments and Measur in Fluid Mechanics,1996(1). |
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| Authors: | Zhan Dexin Wang Xianfu |
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| Institution: | Wuhan Transportation University |
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| Abstract: | In this paper, wind tunnel section model test is made for a steel bridge in Er-tan project. The test includes vortex-excited vibration and buffeting in smooth flow and high intensity turbulent flow respectively,the critical flutter velocity and flutter derivatives are obtained.The conclusions provide basis for stable analysis of wind-induced vibration of the bridge.The method,obtainning flutter derivatives by adding dynamic balances in a spring-hang system in the test,is a new try. |
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| Keywords: | steel bridge wind-induced vibration flutter derivatives |
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