Abstract
Aiming at the inconsistency between the vibration of the car and the car frame in the actual operation of a high-speed elevator and the horizontal vibration caused by the roughness excitation of the guide rail, this study designs a gas–liquid active guide shoe and establishes a horizontal vibration model of the 8-DOF high-speed elevator car system separated from the car and the car frame. Then, the correctness of the model is verified by experiments. Based on this, a fuzzy neural network intelligent vibration reduction controller based on the Mamdani model is designed and simulated by MATLAB. The results show that the root mean square value, mean value, and maximum value of vibration acceleration are reduced by more than 55% after using the fuzzy neural network control method, and the suppression effect is better than that of BP neural network control. Therefore, the intelligent vibration absorption controller designed by this research institute can effectively suppress the horizontal vibration of high-speed elevators.
Highlights
Nowadays, the number of high-rise and super-high-rise buildings is increasing
Considering the non-coincidence of the centroid of the car and the car frame in the actual structure of the high-speed elevator and the difference in vibration response between the car and the car frame during actual operation, and applying the designed active guide shoes to the high-speed elevator, a horizontal vibration model of the 8-DOF high-speed elevator with active control separated from the car and the car frame is established
This study only considers the horizontal vibration between the elevator car system and the guide rail, that is, the vibration parallel to the direction of the car door
Summary
The number of high-rise and super-high-rise buildings is increasing. elevators are getting faster and faster. An active control model for the horizontal vibration of the high-speed elevator with a guide shoe system was established. A dynamic model of 6-DOF active control of horizontal vibration of the high-speed elevator (with the car and the car frame integrated) was established. The hydraulic active guide shoes designed have poor suppression effect on the horizontal vibration of high-speed elevator. Considering the non-coincidence of the centroid of the car and the car frame in the actual structure of the high-speed elevator and the difference in vibration response between the car and the car frame during actual operation, and applying the designed active guide shoes to the high-speed elevator, a horizontal vibration model of the 8-DOF high-speed elevator with active control separated from the car and the car frame is established. Simulation analysis is carried out in MATLAB to verify the effectiveness of the designed controller
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