Research PaperNo Access

Transverse Vibration Response of a Super High-Speed Elevator under Air Disturbance

School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101, Shandong Province, P. R. China

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Qing Zhang

School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101, Shandong Province, P. R. China

E-mail Address: zhangqing@sdjzu.edu.cn

Corresponding author.

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Ruijun Zhang

School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101, Shandong Province, P. R. China

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, and

Luzhong Zhang

Shandong Electronic Information Products Inspection Institute, Jinan 250014, Shandong Province, P. R. China

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https://doi.org/10.1142/S0219455419501037Cited by:30 (Source: Crossref)

Abstract

For a super high-speed elevator running in a hoistway, it will encounter air flows at high speed. The transverse force and pitching moment generated by the air intensify the transverse vibration of the elevator. In this paper, by fully considering the guide rail excitation and air disturbance, the transverse vibration of a super high-speed elevator under different working conditions is examined. Based on the Lagrange principle, a four degree-of-freedom (DOF) model is adopted for the transverse vibration of the elevator. Combined with computational fluid dynamics (CFD), the effects of various parameters corresponding to different working conditions on the aerodynamic forces acting on the transverse surfaces (the surfaces facing the guide rail) of the car is analyzed. Finally, the Newmark- $β$ $β$ method is employed to analyze the effect of air disturbances on the transverse vibration acceleration of the car under different working conditions. The results show that when the car is symmetrically positioned, the aerodynamic characteristics on both transverse surfaces of the car also appear to be symmetric. The operating speed and the distance between the car’s transverse surface and the hoistway wall (DCH) have a minor effect on the transverse vibration of the car, and the car is basically in a state of forced balance in the transverse direction. However, once the car deviates from the symmetric position, the balance will be violated, and the transverse resultant force and moment of the car will increase with the increase in the deviation amount. Among all these factors, the influence of the rotation angle on the elevator’s vibration acceleration is the most significant.

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