The Vibration Synchronization And The Control Of Amplitude In Sharp Resonance Vibration Machine

Vibration is the most common movement. Over last decade, vibration-utilization engineering has been featheredly developed. As a kind of special industrial equipment, vibration machine has been applied widely. It is more superior to traditional machine which is designed by theory of resonance vibration.Sharp resonance vibration machine can obtain larger amplitude with smaller exciting force under the principle of resonance. Tradition vibration machine is always working far beyond the resonance point. However, the resonance frequency can be limited at the range 0.8 to 0.9 of rarely using near-resonant vibration machines. Now, with the development of computer science and control technology, the control costs decreased rapidly. The problems of near-resonant vibration amplitude stability can be solved by computer control. So the frequency ratio can be increased significantly even closed to 1. The sharp resonance vibration machine has the advantage that the excitation force is smallest when frequency ratio approximate equivalent to 1 (the resonance frequency ratio is 0.9-1.1) if the system exist damp.This paper is on the basic of the theory of resonance vibration, the differential equation of dynamic is obtained. Parameters such as amplitude of the upper and lower body mass than the natural vibration frequency, quality ratio, damping ratio which affect to the amplitude stability of the upper and lower body mass are calculated. Charts of the amplitude change of each mass body with the parameters variable are given by Matlab. Also analyze the amplitude of the impact of plastid when the material quality on the system is changed. In addition, analyze the synchronization and stability of sharp resonance machine, and then the two main impact parameters are given.A Fuzzy Self-tuning PID Parameter (FSPID) controller is designed by Simulink and Fuzzy toolbox in MATLAB. According to the simulation result that uses the transfer function of system, it can accomplish making the amplitude of mass bodies stable at any given value in real-time control. The amplitude stability control platform is composed of test-bed application of sharp resonance, frequency converter, the acceleration sensor charge amplifier. And experiment software is developed by Labview. Both the simulation and experiment result have illustrated that the FSPID controller can meet the requirements and its performance is superior to the traditional PID controller.