Hydraulic Multi-way Excitation Valve and Control Characteristics Identification
Aiming at the problem that the existing rotary valve is difficult to control the frequency,amplitude and offset of the out-put excitation waveform at the same time,a new hydraulic multi-way excitation valve was proposed,the dynamic model of the valve con-trol excitation system was established,and the control characteristics of the output waveform frequency,amplitude and offset were simu-lated and analyzed.On this basis,the hydraulic multi-way excitation valve prototype was designed and manufactured,and then the con-trol characteristics of output waveform frequency,amplitude and offset were identified.The research and experimental results indicate that the proposed hydraulic multi-way excitation valve can control the frequency,amplitude and offset of the output excitation waveform.Among them,the waveform frequency is directly proportional to the valve core speed,and the frequency range is from 1 Hz to 100 Hz;the amplitude of the waveform is proportional to the axial displacement of the valve core and the oil supply pressure;the waveform offset is also proportional to the difference in axial displacement between the two valve cores.
hydraulic multi-way excitation valvedynamic modelingidentification of control characteristicsdynamic characteristis
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