Research on Vibration Isolation Performance of the Constrained Damping Base for the High Pressure Plunger Pump
Based on the principle of damped shear deformation energy dissipation,a new constrained damping base is proposed to alleviate the excessive vibration response of the polymer injection platform deck when multiple plunger pumps work together.The vibration response analysis model of plunger pump-constrained damping base-polymer injection platform is established by Abaqus software.The effects of the damping material loss factor,the thickness of damping layer and the number of extended layers on the vibration isolation characteristics of the constrained damping base are explored.The study shows that with the increase of the damping material loss factor,the thickness of the damping layer and the number of extended layers,the vibration isolation performance of the constrained damping base will be enhanced gradually.When the damping material loss factor is 1.0,the thickness of the damping layer is 20 mm,and the number of extended layers is 3,the vibration damping effect of the constrained damp-ing base reaches the optimum,and its vibration isolation rate is as high as 46.63％,which can signifi-cantly reduce the vibration response of the polymer injection platform.
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