Flow-induced vibration of a steam control valve

Yonezawa, Koichi; Ogawa, Ryohei; Ogi, Kanako; Takino, Tomofumi; Tsujimoto, Yoshinobu; Endo, Takahide; Tezuka, Kenichi; Morita, Ryo; Inada, Fumio

doi:10.1016/j.jfluidstructs.2012.06.003

Cited by 64 publications

(35 citation statements)

References 12 publications

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“…Crucially, they find motion that represents a coupling between the acoustic modes of the pipe and the valve. Yonezawa et al (2012) document instability occurring in a steam control valve with a flexible support, although in that case the flow direction is opposite to the usual PRV applications. Nevertheless, the authors' experiments confirm that the cause of instability is effectively negative damping of the valve head from the flow fluctuation in the pipe.…”

Section: Experimental Evidencementioning

confidence: 99%

“…Several recent articles in which the authors were able to reproduce various forms of valve instability using CFD include the works by Song et al (2014); Srikanth and Bhasker (2009);Beune et al (2012); Yonezawa et al (2012); Bazsó and Hős (2012); Wu et al (2015). CFD even allows the accurate predictions of two-phase situations, as in Dempster and Elmayyah (2013) or the analysis of other types of valves, see Qian et al (2014).…”

Section: Computational Fluid Dynamicsmentioning

confidence: 99%

“…We should stress though that parallels of the mechanisms of instability we describe through interaction between fluid flow and springmass systems occur in other industrial devices and sectors. Documented cases occur for example in nuclear engineering Galbally et al (2015), steam power Yonezawa et al (2012); Bolin and Engeda (2015), automotive fuel transmission Dazhuan et al (2015) and hydraulic power transmission Mehrzad et al (2015). Similar instabilities can also be present in other valve topologies e.g.…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Dynamic behaviour of direct spring loaded pressure relief valves connected to inlet piping: IV review and recommendations

Hős

Champneys

Paul

et al. 2017

Journal of Loss Prevention in the Process Industries

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. AbstractRecent progress by a number of different groups and authors is reviewed on the stability properties of direct-spring pressure relief valves connected to pressure vessels with or without piping systems. Various different notions of stability and mechanisms for instability are revealed both in the case of gas and liquid service. It is stressed that it is not the valve itself that is stable or unstable, rather the harmful vibrations arise through interactions between the valve and its surroundings -the inlet piping, the reservoir, and any outlet piping. A distinction is drawn between underlying instability mechanisms and how these may be triggered during transient operations. The purpose of the work is to provide a coherent simplified account that will be of practical use for proposing new operational guidelines and mitigation strategies. Among these various mechanisms, oscillatory instability due to the interaction with a quarter-wave acoustic mode in the inlet piping is argued to be the most important to mitigate.

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Section: Experimental Evidencementioning

confidence: 99%

Section: Computational Fluid Dynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Dynamic behaviour of direct spring loaded pressure relief valves connected to inlet piping: IV review and recommendations

Hős

Champneys

Paul

et al. 2017

Journal of Loss Prevention in the Process Industries

View full text Add to dashboard Cite

show abstract

“…Some other researchers revealed that the pressure pulsation is a very dominant factor for producing vibration in flow control valves. According to the research results from Yonezawa et al [11], both occurrence conditions for the forced vibration and self-excited vibration of a Venturi-type valve were clarified. It was found that the greater pressure pulsations caused by the unsteady flow and negative damping acting on the valve head played a major role in the transition between the forced vibration and self-excited vibration of the Venturi-type valve.…”

Section: Introductionmentioning

confidence: 99%

Suppression of Squeal Noise Excited by the Pressure Pulsation from the Flapper-Nozzle Valve inside a Hydraulic Energy System

Chen

Xiang

et al. 2018

Energies

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Squeal noise often occurs in a two-stage electrohydraulic servo-valve, which is an unfavorable issue of modern hydraulic energy systems. The root causes of such noise from the servo-valve are still unclear. The objective of this paper is to explore the noise mechanism in a servo-valve excited by the pressure pulsations from the hydraulic energy system perspective. The suppressing capability of squeal noise energy is investigated by changing the pressure pulsation frequency and natural frequency of the flapper-armature assembly. The frequencies of the pressure pulsations are adjusted by setting different speeds of the hydraulic pump varying from 10,400-14,400 rpm, and two flapper-armature assemblies with different armature lengths are used in the tested hydraulic energy system. The first eight vibration mode shapes and natural frequencies of the flapper-armature assembly are obtained by numerical modal analysis using two different armature lengths. The characteristics of pressure pulsations at the pump outlet and in the chamber of the flapper-nozzle valve, armature vibration and noise are tested and compared with the natural frequencies of the flapper-armature assembly. The results reveal that the flapper-armature assembly vibrates and makes the noise with the same frequencies as the pressure pulsations inside the hydraulic energy system. Resonance appears when the frequency of the pressure pulsations coincides with the natural frequency of the flapper-armature assembly. Therefore, it can be concluded that the pressure pulsation energy from the power supply may excite the vibration of the flapper-armature assembly, which may consequently cause the squeal noise inside the servo-valve. It is verified by the numerical simulations and experiments that setting the pressure pulsation frequencies different from the natural frequencies of the flapper-armature assembly can suppress the resonance and squeal noise.

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“…Wachel J.C's [2] research showed that the vibration induced by fluid was one important cause of pipe vibration. Koichi Yonezawa [3] studied main steam control valve(MSCV) vibration at different boundary conditions with unsteady fluid, which showed that the unsteady fluid in valves would cause random pressure pulsation in pulse waves. David Galbally [4] studied pressure pulsation and vibration response of the safe-relief valve of main stream system in BWR unit, which shown that the valve vibration response could reach up to 20g, besides, there was a non-periodic pulse-vibration behavior inside the valve at a sinusoidal pressure pulsation caused by internal acoustic resonance.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis of High Pressure Cylinder Steam Inlet Pipes During Turbine Startup in Nuclear Power Plant

Chen¹,

Dong²,

Lin³

et al. 2017

dtmse

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Abstract. Vibration and dynamic strain measurement of high pressure cylinder (HPC) steam inlet pipes(SIP) is carried out during turbine startup in a nuclear power plant. The operation state of the pipes was analyzed and evaluated combined with the unit electric power, the turbine speed and the opening of control valves. The result shows that the pipe vibration velocity exceeds the allowable limit during the turbine startup and low electric power platform. And pipe vibration is synchronous to the control valves quick operation. The alternating stress is lower than the allowable value during the whole process. Pipe vibration is mainly caused by the steam flow excitation when the control valves operate quickly

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Flow-induced vibration of a steam control valve

Cited by 64 publications

References 12 publications

Dynamic behaviour of direct spring loaded pressure relief valves connected to inlet piping: IV review and recommendations

Dynamic behaviour of direct spring loaded pressure relief valves connected to inlet piping: IV review and recommendations

Suppression of Squeal Noise Excited by the Pressure Pulsation from the Flapper-Nozzle Valve inside a Hydraulic Energy System

Vibration Analysis of High Pressure Cylinder Steam Inlet Pipes During Turbine Startup in Nuclear Power Plant

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