A synergistic method for vibration suppression of an elevator mechatronic system

Knezevic, Bojan; Blanuša, Branko; Marcetic, Darko

doi:10.1016/j.jsv.2017.06.006

Cited by 31 publications

(17 citation statements)

References 20 publications

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“…One part is of special interest, and that is the research on the changes in hoist velocities, i.e. defining the control system [23]. The above method can be used for determining an optimal form for changing the hoist velocity, with the aim of reaching maximum capacity, i.e.…”

Section: Computer Simulations Of Mine Elevator Dynamic Behavior and Results Correlationmentioning

confidence: 99%

Dynamic Modelling, Experimental Identification and Computer Simulations of Non-Stationary Vibration in High-Speed Elevators

Đokić

Vladić

Kljajin

et al. 2021

SV-JME

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Modelling the dynamic behaviour of elevators with high lifting velocities (contemporary elevators in building construction and mine elevators) is a complex task and an important step in the design process and creating conditions for safe and reliable exploitation of these machines. Due to high heights and lifting velocities, the standard procedures for dynamic exploitation are not adequate. The study presents the method of forming a dynamic model to analyse nonstationary vibrations of a rope with time-varying length with nonholonomic boundary conditions in the position where the rope is connected with the cabin (cage) and in the upcoming point of its winding onto the pulley (drum). A unique method was applied to identify the basic parameters of the dynamic model (stiffness and damping) based on experimental measures for a concrete elevator. Due to the verification of this procedure, the experiment was conducted on a mine elevator in RTB Bor, Serbia. Using the obtained computer-experimental results, the simulations of the dynamic behaviour of an empty and loaded cage were shown. In addition, the study shows the specific method as the basis for forming a control program that would enable the decrease in vertical vibrations during an elevator starting and braking mode.

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Section: Computer Simulations Of Mine Elevator Dynamic Behavior and Results Correlationmentioning

confidence: 99%

Dynamic Modelling, Experimental Identification and Computer Simulations of Non-Stationary Vibration in High-Speed Elevators

Đokić

Vladić

Kljajin

et al. 2021

SV-JME

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“…Therefore, elevator horizontal vibration suppression has become one of the key problems to be solved urgently in the field of ultra-high-speed elevator. 1,2 At present, control methods for elevator horizontal vibration reduction include passive vibration reduction 3 and active control. 4,5 Guide shoe spring and rubber block are often used to isolate the car system in passive vibration reduction.…”

Section: Introductionmentioning

confidence: 99%

Research on predictive sliding mode control strategy for horizontal vibration of ultra-high-speed elevator car system based on adaptive fuzzy

Wang

Ming-qin

Zhang

et al. 2021

Measurement and Control

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In order to effectively suppress horizontal vibration of the ultra-high-speed elevator car system. Firstly, considering the nonlinearity of guide shoe, parameter uncertainties, and uncertain external disturbances of the elevator car system, a more practical active control model for horizontal vibration of the 4-DOF ultra-high-speed elevator car system is constructed and the rationality of the established model is verified by real elevator experiment. Secondly, a predictive sliding mode controller based on adaptive fuzzy (PSMC-AF) is proposed to reduce the horizontal vibration of the car system, the predictive sliding mode control law is achieved by optimizing the predictive sliding mode performance index. Simultaneously, in order to decrease the influence of uncertainty of the car system, a fuzzy logic system (FLS) is designed to approximate the compound uncertain disturbance term (CUDT) on-line. Furthermore, the continuous smooth hyperbolic tangent function (HTF) is introduced into the sliding mode switching term to compensate the fuzzy approximation error. The adaptive laws are designed to estimate the error gain and slope parameter, so as to increase the robustness of the system. Finally, numerical simulations are conducted on some representative guide rail excitations and the results are compared to the existing solution and passive system. The analysis has confirmed the effectiveness and robustness of the proposed control method.

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“…Kang and Sul [21] proposed a vibration suppression strategy for improving the ride comfort of an elevator using car acceleration feedback compensation. Knezevic et al [22] proposed the synergistic solution based on the jerk control and upgrade of the speed controller with a band-stop filter to restore lost ride comfort and speed control caused by vibration. Zhang et al [23] designed the active car shock absorber with a linear motor to effectively suppress high-speed traction elevator vibration.…”

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

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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.

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A synergistic method for vibration suppression of an elevator mechatronic system

Cited by 31 publications

References 20 publications

Dynamic Modelling, Experimental Identification and Computer Simulations of Non-Stationary Vibration in High-Speed Elevators

Dynamic Modelling, Experimental Identification and Computer Simulations of Non-Stationary Vibration in High-Speed Elevators

Research on predictive sliding mode control strategy for horizontal vibration of ultra-high-speed elevator car system based on adaptive fuzzy

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

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