转阀控制式脉冲波生成方法

Pulse Wave Generation Method Using Rotary Valve Control

脉冲波浪的模拟产生及其对海洋工程结构冲击的研究已成为研究的热点。为更真实地模拟高能量的冲击波浪,提出一种转阀控制式脉冲波生成方法,利用Matlab/Simulink工具进行新方法数学模型的数值分析,研制出转阀控制式推板造波试验装置,并进行试验验证。研究结果表明:转阀控制式推板造波系统能够实现波幅在确定推板频率下进一步提高,且易于叠加生成脉冲波浪;试验水槽中的水深对生成波浪的波幅有一定的影响,水深越深,生成脉冲波波幅也越高;脉冲波波幅的大小取决于系统中的阀口轴向开度和供油压力的控制,且阀口轴向开度和供油压力设定越大,脉冲波波幅越高。新的造波方法对指导大功率电液控制式造波装置实现更大能量脉冲波浪具有重要的工程价值。

The generation of pulsed waves and its impact on offshore engineering platform have become a research hot topic. For a more realistic simulation of high-energy impact waves, a pulse wave generation method of electro-hydraulic rotary valve control is proposed and the mathematical model of the wave maker system is established. The mathematical model is analyzed using Matlab/Simulink software tools and piston wave maker experimental facility with electro-hydraulic rotary valve control is developed to verify. The results show that new wave maker system can further improve the wave amplitude in a certain plate frequency and make it easy to generate the pulse waves; Depth of water in water tank is the factor for the wave amplitude, a larger the depth of the water would lead to larger the pulse wave amplitude; The pulse wave amplitude depends on the control of the axial opening width of the valve port and oil supply pressure of the system, and the greater the axial opening and the oil supply pressure, the higher the pulse wave amplitude. New method is of great significance to further guide the generation of achieving higher power pulsed waves.