Open AccessStudy on horizontal vibration characteristics of high-speed elevator with airflow pressure disturbance and guiding system excitation
Author(s) -
Jie Liu,
Ruijun Zhang,
Qin He,
Qing Zhang
Publication year - 2019
Publication title -
mechanics and industry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.256
H-Index - 18
eISSN - 2257-7777
pISSN - 2257-7750
DOI - 10.1051/meca/2019013
Subject(s) - vibration , airflow , deflection (physics) , acceleration , elevator , displacement (psychology) , natural frequency , excitation , acoustics , structural engineering , mechanics , engineering , physics , optics , mechanical engineering , classical mechanics , electrical engineering , psychology , psychotherapist
This paper aims to study the horizontal vibration dynamic characteristics of high-speed elevator by considering the combined effect of airflow and guiding system. The relationships of lateral force and overturning moment with horizontal displacement, deflection angle displacement and rated speed of the car are mathematically solved, and the horizontal vibration dynamic model of the car under the two excitations is established. For case model, the natural frequency and horizontal vibration response of the car are studied, and the guide-rail excitation frequency and car natural frequency are compared and analyzed. The results indicate that the higher the rated speed is, the more obvious the resonance phenomenon between the guide-rail and car will be in a certain range; the effect of airflow on horizontal vibration acceleration of the car with a speed lower than 6 m/s is small, but when the speed is over 6 m/s, the airflow will greatly affect the single-peak value of horizontal vibration acceleration, which is approximately a quadratic relationship; the deflection angle displacement has an increasing influence on horizontal vibration dynamic response with the increasing speed. The conclusions provide a theoretical guidance for the research and control on the horizontal vibration of high-speed elevator.