Vibration Analysis of the Control Valve Coupled Models

Abstract:

A marine steam turbine control valve is taken as the research object in this paper, the vibration response is studied under pressure pulse excitation. The transient flow field analysis is made using the method of large eddy simulation to obtain the time-domain information of the pressure pulsation. Then, the analysis of vibration based on coupled modes, research vibration response and resonance problems of the control valve. The study found that the vibration of control valve is strongly in low frequency excitation, but high-frequency excitation makes relatively little impacts on it; The diffuser and downstream of valve is the main area of generating vibration.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 894-898
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.894
• Online since: June 2014
• Authors: Jia Dian Wang, Chong Liu, Xiao Zeng Xie
• Keywords: Control Valve, Fluid Structure Interaction (FSI), Large Eddy Simulation, Vibration

References

[1] Mao Jingru, TuShan, Liu Quanen etc. The experimental study of flow characteristics within control valve for steam tubine[J]. Journal of engineering thermophysics, 2002, 23 (6) : 687-690.

[2] Wang Yongzhou, YangRui, Zhang Yunlong. Reason analysis and prevention measure about the vibration of control valve[J]. Journal of valve, 2009, 05: 44-45.

[3] Ma Yushan, Fu Weiping, TuShan, Shi Yuejuan, Experimental study on vibration of pilot-cage type control valve[J]. Chinese Journal of Scientific Instrument, 2010, 12: 2828-2835.

[4] R.D. Blevins: flow-induced vibration (China Machine Press, Beijing 1983).

[5] S. Tu, B. Sun, J.R. Mao: Valve. Vol. 5 (2003), pp.9-12.

[6] H.H. Shi, R. Yang, S. Tu: Valve. Vol. 1 (2009), pp.13-15.