Vibration Control of High-speed Elevators Taking Account of Electricity Consumption Reduction

Utsunomiya, Kenji; Okamoto, Ken‐ichi; Yumura, Takashi; Sakuma, Yoichi

doi:10.1299/kikaic.72.2048

Cited by 7 publications

(4 citation statements)

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“…An operating elevator is a moving body that exists in six degree of freedom (6DOF), and its degrees of freedom of motion can include up and down, left and right, front and rear directions as well as parallel motion and rotation and torsion around the axis. A commonly used method is to establish a coordinate system to build the dynamical equations with the centre of mass of the elevator as the origin of the coordinates (Utsunomiya et al, 2006).…”

Section: Mathematical Model Of Elevator Car Systemmentioning

confidence: 99%

“…Previous research results show that when the lift speed exceeds 3 m/s, the transverse vibration acceleration of the lift car will be significantly greater than that of the low-speed lift (Zhang et al, 2019b). Therefore, how to effectively suppress the horizontal vibration of the car becomes one of the important technical difficulties in the field of high-speed and highperformance lift product development Utsunomiya et al, 2006). In the past decades, a lot of research has been carried out on the horizontal vibration of high-speed elevators.…”

Section: Introductionmentioning

confidence: 99%

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Suppression of horizontal vibrations in high-speed elevators using active shock absorber to assist traditional damping systems

Ren,

Li,

et al. 2024

JIMSE

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PurposeThis paper aims to design an active shock absorber scheme for use in conjunction with a passive shock absorber to suppress the horizontal vibration of elevator cars in a smaller range and shorter time. The developed active shock absorber will also improve the safety and comfort of passengers driving in ultra-high-speed elevators.Design/methodology/approachA six-degree of freedom dynamic model is established according to the position and condition of the car. Then the active shock absorber and disturbance compensation-based adaptive control scheme are designed and simulated in MATLAB/Simulink. The results are analysed and compared with the traditional shock absorber.FindingsThe results show that, compared with traditional spring-based passive damping systems, the designed active shock absorber can reduce vibration displacement by 60%, peak acceleration by 50% and oscillation time by 2/3 and is more robust to different spring stiffness, damping coefficient and load.Originality/valueThe developed active shock absorber and its control algorithm can significantly reduce vibration amplitude and converged time. It can also adjust the damping strength according to the actual load of the elevator car, which is more suitable for high-speed elevators.

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Section: Mathematical Model Of Elevator Car Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Suppression of horizontal vibrations in high-speed elevators using active shock absorber to assist traditional damping systems

Ren,

Li,

et al. 2024

JIMSE

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show abstract

“…An active suspension system was developed and verified in [22,23] which is composed of six actuators to suppress the horizontal vibrations. To suppress the lateral vibration, an active roller guide system was proposed in [24,25] with significant advantages of controlling performance and electric consumption. It was observed in [26], that the fundamental vibration frequency of the front-back direction is lower than the lateral direction.…”

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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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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“…Active vibration control is a major method for suppressing the vibration. To isolate the cabin from horizontal vibrations caused by the roughness of the rails which guide the elevator cabin, a control system using a servo-motor (4), (5) , an active mass damper system (6), (7) and active roller guides (8) were trialed. The performances of these systems were examined and some of them were already being used in practice.…”

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 High-speed Elevators Taking Account of Electricity Consumption Reduction

Cited by 7 publications

References 0 publications

Suppression of horizontal vibrations in high-speed elevators using active shock absorber to assist traditional damping systems

Suppression of horizontal vibrations in high-speed elevators using active shock absorber to assist traditional damping systems

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

Active Vibration Control of an Elevator Car Using Two Rotary Actuators

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