The Analysis Of Dynamics And Control Of Amplitude In Anti-Resonant Mechanical

Vibration is the most common movement forms in daily life.Vibration-utilization engineering developed adequately in recent decade years. As a special machine, vibrating machines are widely used in industry. However, the vibration of mechanical equipments not only affects the accuracy, structural strength and service life, but also brings mischief of the surrounding equipments and buildings. Noise and vibration will also affect the health of human beings. Therefore, isolating vibration effectively is necessary.Installed the device that consisted of springs, dampers and quality pieces on vibration machines or equipments in order to absorb the majority of vibration energy produced by the system. Vibrating machines designed according to anti-resonance theory have more superiorities than traditional ones, so it becomes a hot research topic. But anti-resonance vibrating machines have the same imperfection that the amplitudes are not stability, so we must study the theory and validate experiment adequately before practicing it on appliance.This paper analyses the dynamic parameters of anti-resonance vibrating machine using anti-resonance theory and method, and I have derived differential equations according to the Lagrange equations. To calculate the amplitude of vibration and get the parameters that affect the amplitude's stability such as anti-resonance sensitivity ratio, quality ratio, dump ratio.Using MATLAB graphics function draws the changes of the amplitudes of system when the parameters are changed. The paper I also have optimized the dynamic parameters of the entire anti-resonance vibrating machine to get the optimal parameters using MATLAB optimal function. When the quality of the amplitude changes, using MAPLE to calculate the changes that the quality of transport material, and adjusting the frequency of vibration to meet the control demands. According to the differential equations, I have derived the state space equations of the anti-resonance vibrating machine system. Use the SIMULINK and Fuzzy Toolbox supplied by MATLAB to design the fuzzy self-tuning PID controller to imitate the system in accordance with the Space equation.Using inverter, acceleration sensor, charge amplifiers, industrial computer and other equipments, LABVIEW data acquisition module and output control module, real-time acquired the amplitude of anti-vibration resonance in a given frequency. Through its output function to control the inverter's frequency, meets the requirements of the Anti-resonant Mechanical's up body and down body's amplitudes.