Study on Flow-Induced Vibration Characteristics of Hydraulic Hoist of Large-Span Upwelling Radial Steel Gate

Abstract:

In this paper we conduct study on flow-induced vibration of large-span upwelling radial steel Gate and its hydraulic hoist. Place an emphasis on vibration response characteristics under two working conditions of diversion and drainage, which proves the safety of hydraulic hoist gate vibration caused by gate vibration. Firstly, we study on dynamic characteristics of fluid-structure interaction of association system of gate and start and stop lever, reveals the discipline of the effect fluid having on structural dynamic characteristics. On this basis, flow-induced vibration characteristics under two conditions of with and without start and stop lever action considered. The results indicate that the gate vibration response with hydraulic hoist used decreases, which explains start and stop lever has certain effect of restraining vibration on gate vibration. In addition, under the working condition of drainage the vibration magnitude of start and stop lever is smaller than that of gate body, which explains there is damping action during transference of gate vibration through start and stop lever. The results find out that on the assumption of optimized gate structure and hydraulic arrangement, it is practicable, safe and reliable to adopt hydraulic hoist. The achievement has directive significance on similar projects construction in the future

• Periodical: Applied Mechanics and Materials (Volumes 117-119)
• Pages: 241-246
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.117-119.241
• Online since: October 2011
• Authors: Zhen Hai Gao, Gen Hua Yan, Peng Liu, Fa Zhan Chen, Fei Ming Lv
• Keywords: Flow-Induced Vibration, Fluid Structure Interaction (FSI), Hydraulic Hoist, Large-Span Upwelling Radial Steel Gate

References

[1] Yan Genhua, Yan Shiwu, Numerical Calculation of Resonance Vibration Frequency of Hydraulic Radial Gate Three-dimensional Hydro-elastic Interaction, Journal of Nanjing Hydraulic Research, January, 1993.

[2] Yan Genhua, Yan Shiwu, Dynamic Optimization of Hydraulic Sluicing Structure and Its Application on Radial Gate, Journal of Nanjing Hydraulic Research, Vol.2, 1993.

[3] Yan Genhua, Hydraulic Load and Gate Vibration, Hydro-science and Engineering, February, 2001.

[4] Yan Genhua, The Application Trend and Anti-vibration Measures of Large-span Gate in China, Hydro-science and Engineering, Vol.4, (2009)

[5] Yan Genhua, Chen Fazhan, Hu Qulie, Test and Research on Flow -excited Vibration of Working Gate of Upper Stream Pumping Unit in Qingcaosha Reservoir, International Symposium on Hydraulic Physical Modeling and Field Investigation, Nanjing, China，September 13-15, (2010)