The Design Modeling And Simulation Of The Vibrator In Micro-Vibration Platform

With the development of the new function materials, ginat mangnetosrictive material have brought out the large maket prospect in the magnetism-machine transition area because of the large flexible strain, high energy density wide frequency band intelligent response and some other special preponderance. Vibration exciter designed is a kind of new exciters, which can change the electric energy into mechanical energy based on flexible effect of ginat mangnetosrictive material. The study of the vibration can not only be good for expanding the use of ginat mangnetosrictive material, but also help complete the new technology of the production of foamed concrete slab.Based on the functional requirement of the micro damping platform raised by the productive technology of foamed concrete slab, this paper confirmed the performance indexes which the micro damping platform should reach. Also it draw up the whole plane from the choice of vibrator types, the establishment of vibration mode and some others aspects. It studied the flexible phenomenon, generating mechanism and performance characteristic of ginat mangnetosrictive material and provided the important design date and theoretical basis for the design of exciter.Based on the existing basic structure of the electrodynamic type exciter, It did the analysis and design of the exciter's integral structure scheme, raised the design and optimization of the geometric parameters of ginat mangnetosrictive material sticks and coils, magnetic circuit design and the desigen method and theory of the critical components such as preloading institution; It analized the temperature rise of the exciter and finished the temperature control device design based on some usual compensation methods of the thermal deformation.This paper briefly described the finite element analysis, ANSYS software and the related electromagnetic field finite element analysis theory. It did the simulation analysis of the exciter's magnetic field distribution, and got its distribution of the driven and bias magnetic fields which was so important for the performance study of the exciter. Meanwhile, the analysis showed that, at the middle of the exciter, the magnetic field distributed evenly and is less than the magnetic field intensity each end which is related to the low magnetic permeability. For studying the response characteristic of the exciter quantify cationally, this paper used analsis modeling method to suild the exciter's static mathematic model and got the corresponding transfer function equation. Also, it used simulink functional module of MATLAB to do dynamic performance simulation analysis, through the analysis. This paper comfirmed prelimirary the system dynamic response performance, and raised the effective method to improve the dynamic response time and system stability, Also it provide the theoretical basis for the farther study of the inlligent control system of the exciter.