CAJ | 학술논문

对三级阀控液压振动台的控制策略进行了系统的研究，设计了应用于大流量液压振动台的一体式控制器。一体式控制器同时实现液压振动台伺服控制及振动控制功能，伺服控制中，针对三级电液伺服阀和伺服油缸提出一种双PID伺服控制策略，振动控制中，针对液压振动台良好的低频特性设计了基于闭环迭代控制的波形再现控制方法。通过一体式控制器对三级阀控液压振动台进行不同时程、不同频宽的波形再现试验，表明控制器对液压振动台具有很好的波形控制能力，实现液压振动台高精度波形再现。
대삼급벌공액압진동태적공제책략진행료계통적연구，설계료응용우대류량액압진동태적일체식공제기。일체식공제기동시실현액압진동태사복공제급진동공제공능，사복공제중，침대삼급전액사복벌화사복유항제출일충쌍PID사복공제책략，진동공제중，침대액압진동태량호적저빈특성설계료기우폐배질대공제적파형재현공제방법。통과일체식공제기대삼급벌공액압진동태진행불동시정、불동빈관적파형재현시험，표명공제기대액압진동태구유흔호적파형공제능력，실현액압진동태고정도파형재현。
The control strategy for a hydraulic shaker controlled with a 3-stage electro-hydraulic servo valve was studied here.An integrated controller was designed for a large-flow hydraulic shaker.The controller could simultaneously realize servo control and vibration control functions of the hydraulic shaker.In the process of the servo control,a dual-PID servo-control strategy was presented for the 3-stage electro-hydraulic servo valve and the servo cylinder.In the process of the vibration control,aiming at the good low-frequency characteristics of the hydraulic shaker,a waveform replication method based on a closed-loop iterative control was designed.Through the waveform replication tests with different time histories and different bandwidths on the hydraulic shaker controlled with the integrated controller,it indicated that the controller has a strong waveform control ability to achieve a high-precision waveform replication on the hydraulic shaker.