Hydraulic vibration type high-power wave generation system and control method thereof

Abstract

The invention relates to a hydraulic vibration type high-power wave generation system and a control method thereof. The wave generation system comprises a wave pushing plate, a hydraulic cylinder, a control valve group, an oil supply device, a controller, a speed adjusting valve, a stepper motor and an oil tank; and the wave pushing plate is connected to a piston rod of the hydraulic cylinder, and can be driven to generate analog waves under linear reciprocating effect of the piston rod. A port A of the control valve groupis connected to a port E of the hydraulic cylinder; a port B of the hydraulic valve group is connected to a port F of the hydraulic cylinder; and the oil supply device can suck oil from the oil tank, and can supply the oil to the hydraulic cylinder through the control valve group. The wave generation system uses the control valve group, consisting of a valve element rotary reversing valve and four cartridge valves, for controlling the movement of the hydraulic cylinder, so that the wave generation system can havethe advantages of high reversing frequency control precision and wide control range of the valve element rotary reversing valve and high circulating capacity of the cartridge valves. The valve element rotary reversing valve is provided with a rotating valve element; and the stepper motor is connected to thevalve element of the valve element rotary reversing valve.

Description

technical field [0001] The invention belongs to the field of wave simulation, and in particular relates to a hydraulic vibration type high-power wave-making system and a control method thereof. Background technique [0002] In the fields of ships, ports, coastal engineering, ocean engineering, etc., wave-making technology is an important test technology, and the wave-making technology is simulated by the wave-making system as an important laboratory device. The wave-making system consists of a controller, a driving device and a wave pushing plate. Under the control of the controller, the driving device drives the wave pushing plate to move according to a certain control law, and the wave pushing plate pushes the fluid medium to form various forms of simulated waves. , used to study the effect of waves on water structures such as ships, docks and dams. [0003] According to the different driving devices, the wave-making system can be divided into two categories: the wave-mak...

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Problems solved by technology

[0005] The existing wave-making system based on hydraulic drive usually adopts the reversing valve in the form of a spool valve. The reversing valve in the form of a spool valve has a slow response speed, and it is difficult to achieve a high reversing frequency and better reversing accuracy.

Regardless of whether the reversing valve in the form of a slide valve adopts electromagnetic reversing or hydraulic reversing, while the reversing frequency is limited, it is also limited by the flow rate, and it is impossible to take into account the wave-making system on the reversing frequency and flow rate. Requirements, so that the existing wave-making system cannot simulate the wave when the expected waveform is more complicated

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