Experiment and Simulation Research on the Modal Resonance Hydraulic Pulsation Attenuator
In order to attenuate hydraulic pressure pulsation,the structure of modal resonance hydraulic pulsation attenuator is proposed based on the principle of resonance attenuation.The resonance plate has multiple modes which widen the attenuation frequency range.When the pulsation frequency of the hydraulic system approaches to one of the modal frequencies,the corresponding mode will be aroused to attenuate the pulsation energy.Selecting suitable materials and designing the resonant structure can make its natural frequencies distributed evenly and densely,so that the pulsation attenuator has perfect performance for wide frequency range.The acoustic-vibration coupling simulation and experimental tests show that the modal resonance hydraulic pulsation attenuator has the advantages of compact structure,wide attenuation frequency range,and excellent silencing performance.