水力式升船机平衡重系统单竖井模型振动试验研究

Single shaft model experimental study on vibration of hydraulic floating ship lift balance weight system

水力式升船机是我国提出的具有自主知识产权、利用水能作为提升动力和安全保障措施的新型垂直升船机形式。针对该型升船机研究现状,设计制作平衡重系统单竖井简化模型,对其进行不同频率不同振幅正弦振动试验。结果表明:低频产生的振动响应比高频明显,且振幅越大振动响应越激烈;当试验频率接近模型结构自振频时,竖井与浮筒间隙水体晃荡剧烈,浮筒上下运动明显,承船厢也随之上下晃动,这对升船机的平衡安全运行具有不容忽视的影响,需要进一步深入研究。

The hydraulic floating ship lift is a new-type vertical ship lift using water as the ascending power and safety measures, which was put forward with independent intellectual property rights in China, In view of the current research on this type of ship lift, we design a simplified model of single shaft balance weight system to conduct the sine vibration test on different frequencies and amplitudes.Experimental results show that the response from the low-frequency vibration response is obvious than that from the high frequency, and the greater the amplitude, the more intense the vibration response is. When the test frequency approaches the the model＇ s self- vibration frequency, water between the shaft and buoy water swing severely and the buoy moves up ＆ down obviously, and the ship chamber also moves up and down with it.All the above movements will exert a significant influence on the balanced and safe operation of the ship lift, so an in-depth research is needed.