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

1
State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
2
Canny Elevator Co., Ltd., Suzhou 215000, China
*
Authors to whom correspondence should be addressed.
Energies 2020, 13(18), 4821; https://doi.org/10.3390/en13184821
Received: 9 August 2020 / Revised: 9 September 2020 / Accepted: 13 September 2020 / Published: 15 September 2020
(This article belongs to the Section Smart Grids and Microgrids)
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. View Full-Text
Keywords: energy-based vibration model; coupling vibration; precise integration; traction system; high-speed elevator energy-based vibration model; coupling vibration; precise integration; traction system; high-speed elevator
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MDPI and ACS Style

Qiu, L.; He, C.; Yi, G.; Zhang, S.; Wang, Y.; Rao, Y.; Zhang, L. Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property. Energies 2020, 13, 4821. https://doi.org/10.3390/en13184821

AMA Style

Qiu L, He C, Yi G, Zhang S, Wang Y, Rao Y, Zhang L. Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property. Energies. 2020; 13(18):4821. https://doi.org/10.3390/en13184821

Chicago/Turabian Style

Qiu, Lemiao, Ci He, Guodong Yi, Shuyou Zhang, Yang Wang, Yong Rao, and Lichun Zhang. 2020. "Energy-Based Vibration Modeling and Solution of High-Speed Elevators Considering the Multi-Direction Coupling Property" Energies 13, no. 18: 4821. https://doi.org/10.3390/en13184821

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