大功率推板式波浪生成实验系统的建模分析

Modeling and Analysis of Experimental System in High Power Push-board Wave Maker

基于电液控制式造波新方法,建立了推板式波浪生成实验系统的数学模型,并利用Simulink软件进行了数值求解和分析,得到了主要参数对波浪生成实验系统的影响。结果表明:阀芯油口轴向尺寸越大,推板的摆幅越大,生成的波浪越高;在不同的电动机的旋转频率下,频率越高,推板的摆幅和变化周期相对越小,新型的波浪生成实验系统能够在一定频率范围内进一步提高推板的振幅,从而生成更高的波浪。研究结果对大功率推板式波浪生成实验系统设计和验证有参考意义。

In order to meet the demands of high power wave simulation,a new wave generation method was proposed by using the control of a new valve. And the mathematical model of the experimental system of the push-type wave maker was established. And the influence of different control parameters on the dynamic performance of the system was numerically solved by means of Simulink software tools. The analysis results show that larger axial opening width of the valve comes greater plate amplitude and higher wave. Under the control of the rotating frequency of the motor,the higher the frequency at which the spool of the valve rotates is,the smaller the magnitude and the cycle of the plate. The new rotary-valve controlled wave maker can increase the amplitude of the push-type plate in a certain frequency range which generates higher wave. The result of this study is of significance for designing the high power push-type wave generating experimental system and verifying the dynamic performance of the actual test platform.