Numerical Analysis of Pipeline Vibration Characteristics in Large Pumping Stations

doi:10.1088/1755-1315/304/4/042072

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	Numerical Analysis of Pipeline Vibration Characteristics in Large Pumping Stations
	Cundong, Xu 1,2; Junjiao, Tian 1,2; Dongmeng, Zhou 3; Zhipeng, Yao 1,2; Fengyou, Gu 1,2; Peng, Zhang 1,2
	2019-09-18
会议日期	May 10, 2019 - May 12, 2019
会议地点	Nanjing, China
关键词	Deformation Disasters Fluid mechanics Numerical methods Numerical models Pipelines Pumping plants Shore protection Fluid-solid coupling High frequency vibration Large pumping stations Optimization design Structural damage diagnosis Vibration characteristics Vibration isolations Vibration reductions
卷号	304
期号	4
DOI	10.1088/1755-1315/304/4/042072
英文摘要	This paper focuses on the high frequency vibration of the pipeline structure during operation of the large cascade pumping station. In order to explore its causes and inherent vibration characteristics, this paper takes #1 pressure pipeline of No.7 pump of Gansu Province Jingdian Project as the research object. The principle of additional mass method is used to establish a simplified fluid-solid coupling simulation model, and then the model is used to carry out numerical simulation test on the pipeline under different unit opening and closing conditions. After analyzing the numerical results of the simulation, the vibration mode and displacement deformation law are discovered and compared with the DASP field monitoring results. The results show that: under four representative working conditions, the vibration deformation of the pressure pipeline mainly occurs in the elbow section and the connecting section of the large and small tubes; the amplitude of the vibration mode increases with the increase of the modal order; furthermore, the water outlet pipe that is not easily vibrated in the high-order mode is gradually vibrated and deformed; in addition, the numerical simulation results are in good agreement with the field test results. This research can provide reference for the optimization design of pipeline vibration isolation and vibration reduction, and also provide a theoretical basis for the subsequent research on pipeline structural damage diagnosis and its safe operation. © Published under licence by IOP Publishing Ltd.
会议录	IOP Conference Series: Earth and Environmental Science
会议录出版者	Institute of Physics Publishing
语种	英语
ISSN号	17551307
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118132]
专题	兰州理工大学能源与动力工程学院
作者单位	1.College of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou; 450046, China; 2.Collaboration Innovation Center of Water Resources Efficient Utilization and Protection Engineering, Henan Province; 450046, China; 3.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Cundong, Xu,Junjiao, Tian,Dongmeng, Zhou,et al. Numerical Analysis of Pipeline Vibration Characteristics in Large Pumping Stations[C]. 见:. Nanjing, China. May 10, 2019 - May 12, 2019.