Study on horizontal vibration characteristics of high-speed elevator with airflow pressure disturbance and guiding system excitation

Liu, Jie; Zhang, Ruijun; He, Qin; Zhang, Qing

doi:10.1051/meca/2019013

Cited by 20 publications

(17 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Utsunomiy et al [22] conducted a study of guide rail excitation's energy is mainly concentrated in the lowfrequency power. According to [23][24][25], the guide rail's surface roughness error approximately conforms to a normal distribution. The mean value is 0, and the standard deviation is 0.6 mm.…”

Section: Numerical Simulationmentioning

confidence: 99%

Intelligent control of horizontal vibration of high-speed elevator based on gas–liquid active guide shoes

Zhang

Cao

et al. 2021

Mechanics & Industry

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Numerical Simulationmentioning

confidence: 99%

Intelligent control of horizontal vibration of high-speed elevator based on gas–liquid active guide shoes

Zhang

Cao

et al. 2021

Mechanics & Industry

Self Cite

View full text Add to dashboard Cite

show abstract

“…Yani et al [14] investigated the nonlinear oscillation and stability of the elevator's drum as a singledegree-of-freedom swing system employing the parameter expansion method. Liu et al [15] established the horizontal vibration dynamic model of the high-speed elevator car by considering the relationships of lateral force and the overturning moment with horizontal displacement, deflection angle displacement, and rated speed.…”

Section: Introductionmentioning

confidence: 99%

A Vibration-Related Design Parameter Optimization Method for High-Speed Elevator Horizontal Vibration Reduction

Qiu

Wang

Zhang

et al. 2020

Shock and Vibration

View full text Add to dashboard Cite

High-speed elevator horizontal vibration (HsEHV) is a problem that seriously affects ride comfort. To solve this problem, a design parameter optimization method for HsEHV reduction was studied. A dynamic equation of HsEHV was established, and its response value was calculated using a precise integration method. The influence of the design parameters on horizontal vibration was also analyzed. An optimization model of the design parameters for HsEHV reduction was constructed, and the response surface model of objective function (the peak-to-peak value of horizontal vibration acceleration) was constructed using Latin hypercube sampling. We adopted a multiobjective genetic algorithm to optimize the design parameters for horizontal vibration reduction and used the min-max standardization method to select an optimal solution set. Finally, a KLK2 high-speed elevator made by Canny Elevator Co., Ltd., was utilized as an example to analyze the influencing factors of HsEHV, optimize the design parameters to reduce horizontal vibration, and verify the optimized results using numerical calculation and prototype testing.

show abstract

“…With the development of modernization, people's life rhythm is faster and faster, the use range of elevator is gradually expanded, and the use frequency is also higher and higher [2]. Subsequently, the requirements of elevator safety, comfort, and running speed are constantly improved [3,4]. How to balance the elevator performance among these three requirements is a problem that elevator workers all over the world have been thinking about.…”

Section: Introductionmentioning

confidence: 99%

Study on Theoretical Model and Test Method of Vertical Vibration of Elevator Traction System

Peng

Jiang

Yuan

et al. 2020

Mathematical Problems in Engineering

View full text Add to dashboard Cite

In order to study the dynamic characteristics of the elevator, the response characteristics of the elevator under normal operation and emergency braking conditions are analyzed. In this paper, the centralized mass discretization model is used to study the vibration characteristics of the elevator traction system under the external excitation. Firstly, the vibration equation of the elevator multi-degrees-of-freedom (abbreviated as DOF) system is established. en, the vibration characteristics of the three DOF system are analyzed, and the natural frequencies and modes are obtained. e free vibration equation and forced vibration equation are obtained, and the theoretical solutions are obtained. Finally, the test method proposed in this paper is used to test the normal operation and emergency braking of the elevator. e test results show that, under normal operation conditions, the measured speed and distance errors are not more than 4.2%, the up running distance measured by the elevator is larger than the actual value, while the down running distance is smaller than the actual value; under emergency braking condition, because the steel wire rope can only bear the pulling force, the peak acceleration fluctuation in the up emergency braking process is large, while the down emergency braking acceleration fluctuation is small. erefore, the elevator vibration analysis model and the vibration test method proposed in this paper can be used for the analysis of elevator dynamic performance, which has great reference value for the safety performance research of the elevator traction system.

show abstract

Study on horizontal vibration characteristics of high-speed elevator with airflow pressure disturbance and guiding system excitation

Cited by 20 publications

References 7 publications

Intelligent control of horizontal vibration of high-speed elevator based on gas–liquid active guide shoes

Intelligent control of horizontal vibration of high-speed elevator based on gas–liquid active guide shoes

A Vibration-Related Design Parameter Optimization Method for High-Speed Elevator Horizontal Vibration Reduction

Study on Theoretical Model and Test Method of Vertical Vibration of Elevator Traction System

Contact Info

Product

Resources

About