Vibration Control of Super-High-Speed Elevators : Car Vibration Control Method Based on Computer Simulation and Experiment Using a Full-Size Car Model

Yamazaki, Yoshiaki; Tomisawa, Masao; Okada, Kouji; Sugiyama, Yoshiki

doi:10.1299/jsmec1993.40.74

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…As a result, vibration boundary conditions described in Equation (17) are transformed into a non-homogeneous form v(x, t), which is further decomposed to a combination of term v 1 (x, t) with homogeneous boundary conditions, and term v 2 (x, t) with non-homogeneous boundary conditions:…”

Section: Evm With External Perturbationsmentioning

confidence: 99%

“…A specially designed input device with gaps installed near the upper end of the traction rope was proved to be efficient and robust in vibration control of the elevator [16]. A new control suppressor presented in [17] made use of the control force and actuator stroke to suppress vibration. The efficiency of controlling the first and second mode lift car vibration has been proved.…”

Section: Introductionmentioning

confidence: 99%

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Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property

Qiu

et al. 2020

Energies

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Vibration of a high-speed elevator is one of the major factors contributing to a safe, stable and comfortable ride. Vibration control and systematic optimization rely on the establishment of an accurate and reliable model. An energy-based vibration model (EVM) is proposed in this paper to describe the multi-directional coupling properties of high-speed elevators. After analyzing the structural and kinematic characteristics, a combination of the kinematic energy, elastic potential energy and virtual works is implemented to describe the vibrational characteristics. The Gaussian precise integration method is implemented to obtain accurate solutions because of the infinite degrees of freedom and the time-varying parameters. An example study is conducted using the KLK2 high-speed elevator. EVM is established to obtain the Max(Pk)/Pk and A95 indices of the X, Y, Z axis vibrational acceleration through simulations. A comparison is proposed between the proposed EVM method, conventional methods based on differential-equation vibration model (DVM) and real prototype experimental data. Results show that the proposed EVM method could achieve more accurate results than the conventional DVM method. Deviations of these indicators are less than 5%, which suggest the efficiency, precision and reliability of the proposed EVM.

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Section: Evm With External Perturbationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property

Qiu

et al. 2020

Energies

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“…e vibration suppression of the high-speed elevator is often achieved by developing and installing vibration dampers. Typical passive vibration dampers [33][34][35] include a guide shoe, a shock-absorbing spring, and an elevator car buffer. Typical active vibration dampers [2,16,36,37] include an electromagnetic guide shoe, an electromagnetic damper, and an active hydraulic guide roller.…”

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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“…The two masses rotate in opposite directions at the same speed to produce horizontal forces without generating any unwanted vertical forces. Compared to a design using a linear actuator, we expected to make the device more compact (9) .…”

Section: Introductionmentioning

confidence: 99%

Active Vibration Control of an Elevator Car Using Two Rotary Actuators

Nakano

Hayashi

Suda

et al. 2011

JSDD

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A new control device is proposed to isolate an elevator cabin from irregularities on a guide rail. The device consists of two rotary electric motors with disks and eccentric masses. One motor produces torque to rotate the eccentric mass according to the command signals from the controller for horizontal control, while the other rotates the mass to eliminate the unwanted vertical force. To design the optimal controller to reduce the horizontal vibration of the cabin, the dynamics of the cabin, including the proposed control device, are described by a linear equation. The performance of the proposed control system is examined through numerical simulations taking into consideration the nonlinear characteristics of the rotating masses, which are neglected in designing the controller, and through experiments with a miniature elevator cabin carrying the proposed actuator. The results indicate the proposed control device reduces the horizontal vibration without producing the unwanted vertical vibration.

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Vibration Control of Super-High-Speed Elevators : Car Vibration Control Method Based on Computer Simulation and Experiment Using a Full-Size Car Model

Cited by 5 publications

References 1 publication

Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property

Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property

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

Active Vibration Control of an Elevator Car Using Two Rotary Actuators

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