Mechanics & Industry
Volume 20, Number 3, 2019
|Number of page(s)||11|
|Published online||29 May 2019|
Study on horizontal vibration characteristics of high-speed elevator with airflow pressure disturbance and guiding system excitation
College of Mechanical and Electronic Engineering, Shandong Jianzhu University, 250101 Ji'nan, PR China
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Accepted: 17 September 2018
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.
Key words: Horizontal vibration / high-speed elevator / airflow pressure disturbance / guiding system
© AFM, EDP Sciences 2019
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