Application of Fourier Transform Method in Vibration Test of Elevator Structure
Aiming at the vibration of the elevator structure,the vibration characteristics of the elevator with the traction ratio of 1:1 are tested experimentally.On this basis,the power spectral density(PSD)test results of the elevator vibration characteristics are carried out by using the Fourier transform(STFT)method.A transverse and longitudinal coupling vibration detection method of the elevator structure is proposed,and the main frequency distribution and its influencing factors of the elevator component vibra-tion are studied.The results show that the transverse and longitudinal vibration of the car frame are low-frequency vibration,which is mainly caused by the elastic interaction between the frame and the frame.The longitudinal vibration form and amplitude of the car frame are basically the same as that of the platform frame,but the PSD of the transverse vibration has an obvious peak in the high-frequency region,while the transverse and longitudinal vibration frequencies of the lifting rope are higher.This study provides a reference for the design of elevator monitoring sensor and related data processing.
Nonlinear Vibration of ElevatorFourier TransformRandom VibrationTime Frequency Characteristic
万方数据
维普
