一体化泵闸是一种新型水环境治理设备，该设备将水泵与平板闸门一体结合，装置紧凑、构造新颖。但该设备，边界约束弱，流动条件复杂，容易发生流激振动。本文通过三维有限元数值模拟、水动力特性及流激振动试验，系统研究了卧式表孔一体化泵闸结构不同工作条件下的静动力特性、水动力特性和流激振动特性，并采用HHT(Hilbert-Huang transform)方法对随机数据进行分析。此外，针对卧式一体化泵闸的临界工作淹没深度过高的问题，设计了三种消涡装置以降低临界淹没深度，方案三较原方案降低了58%，效果显著。
Abstract
The pump gate is a newly water environment management equipment with compact device and novel structure. This equipment is a combination of hydraulic plate and axial-flow pump. The weak boundary constraint and complex flow may induce the vibration of the pump gate. Therefore it’s necessary to carry out systematic research on the hydraulics and power safety of the pump gate. In this study, the hydrostatic properties, hydrodynamic and flow-excited vibration characteristics of the horizontal pump gate were researched systematically. The research methodology includes numerical simulation, hydrodynamic and hydroelastic vibration experiments. Random vibration theory and HHT method was used to analyze the signal data in experiments. In addition, to decrease the critical submergence depth of the horizontal integrated pump gate, three schemes of vortex elimination devices are designed to reduce the critical submergence depth. Which the third scheme is 58% lower than the original scheme, a efficitive solution .
Key words
horizontal pump gate, flow-excited vibration, numericalt analysis, /
time-frequency analyses, vortex elimination device
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 张德胜，耿琳琳，施卫东，等. 轴流泵水力模型压力脉动和振动特性试验[J]. 农业机械学报. 2015, 46(6): 66-72.
Desheng Zhang, Linlin Geng, Weidong Shi, et al. Experimental Investigation on Pressure Fluctuation and Vibration in Axial-flow Pump Model[J]. Transactions of the Chinese Society for Agricultural Machinery. 2015, 46(6): 66-72.（in Chinese）
[2] 李忠，杨敏官，张宁，等. 变工况下轴流泵装置振动特性实验研究[J]. 工程热物理学报. 2013, 34(5): 866-869.
Li Zhong, Yang Minguan, Zhang Ning, et al. Experimental Study on Vibration Characteristics of Axial-Flow Pump Under Different Operating Conditions[J]. Journal of Engineering Thermophysics. 2013, 34(5): 866-869.（in Chinese）
[3] 马斌，郭乙良. 水工闸门振动研究现状及发展趋势[J]. 水利水运工程学报. 2019(2): 55-64.
Bin M. A., Yiliang Guo. Current research status and development trend of hydraulic gate vibration[J]. Hydro-Science and Engineering. 2019(2): 55-64.（in Chinese）
[4] 沈春颖，何士华，杨婷婷，等. 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, He Shihua, Yang Tingting, et al. Model tests for synchronous measurement of fluid-structure interaction vibration of a plane vertical lift gate[J]. Journal of Vibration and Shock，2016, 35(19): 219-224.
[5] Chen Huixiang, Zheng Yuan, Zhou Daqing, et al. Design and development of an eco-gate pump installation based on computational fluid dynamics[J]. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2016, 231(14): 2636-2649.
[6] 张维杰，严根华，陈发展，等. 深孔弧形闸门静动力特性及流激振动[J]. 水利水运工程学报. 2016(2): 111-119.
Wei-Jie Zhang, Gen-Hua Yan, Fa-Zhan Chen, et al. Static and dynamic characteristics of high pressure radial gate and its flow-induced vibration[J]. Hydro-Science and Engineering. 2016(2): 111-119.（in Chinese）
[7] 房玉亭，李胜兵，黄祖光. 对水泵水轮机模型试验要求的认识[J]. 水力发电. 2006, 32(3): 48-50.
Yuting Fang, Shengbing Li, Zuguang Huang. The Understanding of Pump Turbine Model Test Conditions[J]. WATER POWER. 2006, 32(3): 48-50.（in Chinese）
[8] 林鹏，刘和云，胡东，等. 基于Hilbert-Huang变换的轴流泵流动诱导振动试验[J]. 振动与冲击. 2020, 39(6): 154-160.
Peng Lin, Heyun Liu, Dong H. U., et al. Experiment on the flow induced vibration of an axial-flow pump based on Hilbert-Huang transform[J]. Journal of Vibration and Shock. 2020, 39(6): 154-160.（in Chinese）
[9] 徐晓刚，徐冠雷，王孝通，等. 经验模式分解(EMD)及其应用[J]. 电子学报. 2009, 37(3): 581-585.
Xiao-Gang X. U., Guan-Lei X. U., Xiao-Tong Wang, et al. Empirical Mode Decomposition and its Application[J]. ACTA ELECTRONICA SINICA. 2009, 37(3): 581-585.（in Chinese）
[10] 李成业，练继建，刘昉，等. EMD与小波阈值联合滤波方法的改进及其在泄流结构振动分析中的应用[J]. 振动与冲击. 2013, 32(19): 63-70, 110.
Cheng-Ye L. I., Ji-Jian Lian, Fang Liu, et al. An improved filtering method based on EMD and wavelet-threshold and its application in vibration analysis for a flood discharge structure[J]. Journal of Vibration and Shock. 2013, 32(19): 63-70, 110.（in Chinese）
[11] Goel Arun. Prediction of Critical Submergence for Horizontal Intakes[J]. Water and Energy International. 2012, 69(6): 49-54.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(1577 KB)
