Study On Control Technique Of Vibration And Noise For Equipment On Flexible Base

In this dissertation,a research on decreasing vibration and noise for equipment mounted on a floor was studied. The methods used commonly in vibration analysis,four-pole parameters and machinery impedance were introduced,and the theories and methods mostly used at present for flexible system isolation were compared. The dynamic predigesting model for passive isolation of flexible base system was established,and the four-pole parameters and machinery impedance methods were adopted to analyse the system,the expression of the responsibility and power flow transmissibility was deduced.By means of the Matlab programming language,the responsibility and power flow transmissibility were simulated.Proposed the vibration contrl method of optimizing system parameters.The methods proposed in this dissertation,can meet the requirement of decreasing vibration and noise for flexible base,and have some practicability and reference value.