The Design and Performance of a Fuzzy Active Vibration Isolation System Considering Time-delay Effect
To achieve better vibration control of precision instruments,a fuzzy active vibration isolation system that considers time-delay effect is proposed.This system employs neural networks to predict the platform's motion state in real time at the next moment based on the current output of the fuzzy controller and the platform's output data.This allows for the application of control forces in advance to actively manage the platform's motion.Simulation experiments demonstrate that the neural network's predictions are accurate,reliable,and supported by a well-designed system that effectively predicts real-time signals and suppresses signal oscillations.The system integrates the compensatory effects of neural networks for time delay and the capability of fuzzy controllers to handle uncertainties,enabling intelligent vibration control of precision instruments.
Active vibration isolationTime-delay effectNeural networkFuzzy controllerPrecision instruments