QIN Li\|sheng1, BIAN Yong\|ming2, CHEN Jiong3, LIU Guang\|jun2

(1. Shanghai TongXin Mechatronic Technology Co., Ltd., Shanghai 200949, China;

2. School of Mechanical Engineering, Tongji University, Shanghai 200092, China;

3. 53 Sub Unit, 73906 Unit of PLA, Nanjing 210028, China)

 

Abstract: Aiming at the complex hydraulic problem and vibration problem induced by water flow,the sluice gate of diversion bottom tunnel of Xiangjiaba Hydropower Station was focused on. The mathematical model of hydraulic lifting device with steel strand was built. The elastic coefficient and damping coefficient were analyzed. The amplitude\|frequency response and the preferential frequency range which would affect the hydraulic lifting equipment on steel wire in the process of putting down of gate were determined. The anti\|vibration experiment system was built, and two cylinders were used to simulate the gate vibration under certain amplitude and frequency. The reliability of the hydraulic lifting device with steel strand was verified. The experimental results indicate that the effective length of the steel strand determines the clamping performance of the tendon anchorages. The lifting equipment could meet the construction requirements in flowing water by closed manner and the completion of construction of diversion tunnel plugging gate of Xiangjiaba Hydropower Station also confirms the validity of the analysis method and the simulated experiment.

Key words: hydraulic lifting device with steel strand; vibrationsimulation; vibration simulation experiment