平面直升闸门流固耦合振动同步测试模型试验研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (19) : 219-224.

论文

沈春颖 1,2 ，何士华1，杨婷婷1，王韦2

作者信息 +

Model Test Study on Synchronous Measurement of Fluid-Structure Interaction Vibration of Plane Vertical Lift Gate

Shen Chunying 1，2 , He Shihua 1 ,Yang Tingting 1 ,Wang Wei 2

Author information +

文章历史 +

摘要

采用三维PIV测速系统和多通道振动数据采集系统，同时监测平面直升闸门在下游淹没出流条件下，水流流场分布及闸门振动参数。结果表明：相同工况下，当闸后旋涡顺水流方向越靠近闸门，此方向的振动位移将达到最大值，峰值比振动位移的均值高出3-4倍，离旋涡中心纵坐标越近的测点，其振动参数的峰值较大。随着闸下水流平均流速与湍动能的增加，对同一测点，闸门振动加速度、速度以及位移的峰值都是沿着水流正方向或水流负方向逐步增加的。闸门底缘附近振动的幅度与闸门开度密切相关，闸门开度达到一定值后，对闸门振动已无较大的影响。试验的结论为探索闸门振动机理提供了依据。

Abstract

The synchronous measurement research on the distribution of flow field after the vertical lift gate and gate vibrating parameters for the condition of submerged discharge at the same time is conducted based on the three-dimensional PIV velocity measuring system and multi-channel vibrating data acquisition system . The results show that: when the vortex along the flow direction is closer to the gate in the same working condition, vibrating displacement of the direction will reach the maximum value, and peak value is 3-4 times higher than average vibrating displacement.The closer the measuring point is to the ordinate of the vortex center , the larger the peak of vibrating parameters is .With the increase of the average velocity and turbulent kinetic energy of flow under the gate, the peak value of vibrating acceleration, velocity and displacement on the same measuring point are increase gradually along the positive direction or negative direction of flow. The gate vibrating amplitude near the gate-lip is closely related to the gatage. when the gatage reach a certain value, it has no great influence on gate vibration.The conclusion of experiment provide the basis for exploring the mechanism of gate vibration.

导出引用

沈春颖 1,2,何士华1，杨婷婷1，王韦2. 平面直升闸门流固耦合振动同步测试模型试验研究[J]. 振动与冲击, 2016, 35(19): 219-224

Shen Chunying 1，2,He Shihua 1,Yang Tingting 1,Wang Wei 2. Model Test Study on Synchronous Measurement of Fluid-Structure Interaction Vibration of Plane Vertical Lift Gate[J]. Journal of Vibration and Shock, 2016, 35(19): 219-224

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