Research And Simulation Of Fuzzy Vibration Control Based On PID Algorithm

When an earthquake occurs,its destructive power is huge and unpredictable,which poses a serious threat to human life and safety.However,traditional structural vibration control algorithms often face the difficulty of accurate modeling.Therefore,by introducing the principle of fuzzy control and combining with PID control,a vibration fuzzy control algorithm based on PID control is put forward.This algorithm takes into account the characteristics of PID control and reduces the number of fuzzy reasoning.By simplifying the calculation model,the fuzzy control rules can be formulated to achieve the purpose of adjusting and optimizing the structure damping effect.In order to analyze the damping effect of active fuzzy PID control algorithm for structural vibration control,an analysis model of dynamic response vibration type fuzzy control for a 20-storey steel frame structure is established,and a hydraulic actuator device is installed on each layer,which is controlled by the fuzzy PID controller.By establishing the motion equation of the structure,the active control rule of the fuzzy PID is formulated,and the optimal active control force is determined according to the minimum mechanical energy criterion of the seismic response of the structure.Six seismic waves which conform to the seismic acceleration response specification spectrum are selected to carry out the dynamic response analysis of the structure,programming with MATLAB software,numerical simulation of the fuzzy PID algorithm using the fourth-order RungeKutta method with high precision,and comparison with the damping effect under AMD optimal control.The research results show that the first-order mode shape control of the structure using the fuzzy PID algorithm can achieve a satisfactory damping effect,which verifies the effectiveness of the fuzzy PID control algorithm.Figure 40;Table 16;Reference 54...