介绍一种双自由度液压激振阀,分析其工作原理、建立数学模型,运用Matlab软件进行性能仿真。结果显示该激振系统可以通过调整电机转速和激振阀轴向开度,来实现振动频率和振幅值的独立控制,以满足不同级配物料对振动参数的要求。 This paper introduces a two degree of freedom hydraulic excitation valve, analyzes its working principle, establishes a mathematical model, and uses Matlab software to perform performance simulation. The results show that the excitation system can adjust the motor speed and the axial opening of the excitation valve to realize the independent control of vibration frequency and amplitude to meet the vibration parameters of different gradation materials.