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Modeling and characteristics analysis of fluid-induced vibration of ball valve under complex boundary conditions
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Yan SUN1, Sha-sha YIN1, Guo-yong JIN2, Miao JIN2, Kai-lang SUN2, Tian-gui YE2
Journal of Ship Mechanics | 2025, 29(2) : 321 - 335
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Journal of Ship Mechanics | 2025, 29(2): 321-335
• Hydro/Structural Acoustics •
Modeling and characteristics analysis of fluid-induced vibration of ball valve under complex boundary conditions
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Yan SUN1, Sha-sha YIN1, Guo-yong JIN2, Miao JIN2, Kai-lang SUN2, Tian-gui YE2
Affiliations
  • 1.Nuclear Power Institute of China, Chengdu 610218, China
  • 2.College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Published: 2025-02-20 doi: 10.3969/j.issn.1007-7294.2025.02.015
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Flow-induced vibration of valves is the main source of vibration and noise in pipeline system. The characteristics of flow-induced vibration of liquid valves are important for analyzing vibration and noise in pipeline system, designing and establishing low-noise system. By taking ball valve as the research object, a three-way spring and beam element model was used to simulate the elasticity bolt connection of ball valve inlet and outlet flange end face. Constrained boundary conditions of valves under actual working conditions were established though correcting constrained boundary stiffness with measured dry-humid modal results. Based on Finite Element Method (FEM) and Computational Fluid Dynamics (CFD) theory, the flow-induced vibration analysis model of ball valves was established to research the flow field and fluid-induced vibration characteristics and the correlative influence law of ball valve under variable opening and mass flow conditions. The results show that the three-way spring and beam element model can better simulate the actual installation boundary conditions of ball valve in water pipe. With the decrease of ball valve opening or the increase of mass flow rate, the disturbance of flow field becomes more obvious, and the vibration acceleration level at each measuring point increases.

ball valve  /  fluid-induced vibration  /  constraint boundary  /  dry-wet modal
Yan SUN, Sha-sha YIN, Guo-yong JIN, Miao JIN, Kai-lang SUN, Tian-gui YE. Modeling and characteristics analysis of fluid-induced vibration of ball valve under complex boundary conditions[J]. Journal of Ship Mechanics, 2025 , 29 (2) : 321 -335 . DOI: 10.3969/j.issn.1007-7294.2025.02.015
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Year 2025 volume 29 Issue 2
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Article Info
doi: 10.3969/j.issn.1007-7294.2025.02.015
  • Receive Date：2024-08-26
  • Online Date：2026-03-24
  • Published：2025-02-20
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  • Received：2024-08-26
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Affiliations
    1.Nuclear Power Institute of China, Chengdu 610218, China
    2.College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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