ARTICLE
Vibration transients of reservoir-pipe-valve system caused by water hammer
| 1 | College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, China |
| 2 | Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing, China |
| 3 | Nanjing Electromechanical Hydraulic Engineering Center, Nanjing, China |
| 4 | China Nuclear Power Technology Research Institute Co., Ltd., Shenzhen, China |
CORRESPONDING AUTHOR
Xiaolu Zhang
College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, China
College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, China
Submission date: 2020-01-03
Final revision date: 2020-04-23
Acceptance date: 2020-04-23
Online publication date: 2020-10-15
Publication date: 2020-10-15
Journal of Theoretical and Applied Mechanics 2020;58(4):1037–1048
KEYWORDS
TOPICS
ABSTRACT
A severe oscillation, accompanied with an abnormal “click” sound, of a fuel feeding pipe
system during valve closing, when the feeding flowrate reaches a certain value, is observed
experimentally. A fluctuation model in which stiffness and damping coefficients of the vibration
system are time varying is proposed. Each coefficient is composed of two parts, one of
which is constant and the other is time varying. Based on this model, simulation transients
of the vibration displacement, velocity and pressure in the pipe are presented. Simulations
of the pressure transients are compared with experimental data detected by pressure transducer,
which shows that both have fluctuations in the transient process at a large flowrate.
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