Dynamic Characteristics Of Motor Vibration Reduction Technology Research Based On The Vibration Damping Pad

Elastic supports play a very important role for the rotating machinery such aswind turbines and offshore drilling platforms. With the restriction of the workconditions, the motor vibrations and noises of the rotating machinery are often reducedby using the elastic supports, and avoid the accidents. Thus, the simulations andexperiment are implemented to optimize the parameters of the elastic supports whichhave important practical significance to motor vibration, in order to obtain a systemicanalysis method to reduce the vibration of the motors. The main content and majorachievements of this paper are given as follows:(1) The vibration attenuation theory and its dynamical characteristics of thesupport cushions are introduced, while the steps of the design for the cushions aregiven in detail. Different stiffness values were calculated theoretically under differentcircumstances corresponding damping efficiency and carried damping pad size design.The elasticity modulus of the vibration attenuation can be derived, which is the basisof the subsequent simulations and experiments.(2) In this chapter, a three-dimensional solid model for the motor is established,and some set of finite element models which have different mesh quality are alsoconstructed. With the different influence of different mesh quality to the modelingmotor, it can be found that the computation results under the medium qualityfrequencies have similar effects with that under the higher qualified grid using thefinite element analysis. At the end, the modal of the rotor, stator and the motor areanalyzed respectively, and which vibrations are obtained at the same time.(3) The influence of the different stiffness for the intrinsic frequency are obtainedby the dynamical analysis of the motor vibration. The kinetic theory and dynamicssimulation software ADAMS is introduced briefly. The optimal stiffness values cancomputed automatically by setting optimal variables and the optimal value which itneeds, when the motor has optimum damping effect at a given speed.(4) The stiffness values obtained through the ADAMS optimization are used todesign the damping pad, and we can conclude that: the optimized damping parametersfor motor damping during the experiment has good effects under certain speeds, andthe motor requires a different speed under different working conditions.