Sustainable limitation of high-frequency oscillations of elevator cabin

Energy Management of Municipal Transportation Facilities and Transport - EMMFT 2017

Kaytukov, Batraz^1

Moscow State University of Civil Engineering, Yaroslavskoye Sh. 26, Moscow

129337, Russia^1

关键词: Amplification factors;    Excitation frequency;    High frequency HF;    High frequency oscillations;    Natural vibration frequency;    Number of storeys;    Reasonable value;    Scientific analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/90/1/012193/pdf
DOI  :  10.1088/1755-1315/90/1/012193

来源: IOP

【 摘 要 】

In this paper, a problem of sustainable limitation of vertical high-frequency oscillations of elevator cabin in buildings with various number of storeys is considered. To solve this problem, dynamic model of the elevator movement was developed. In the course of analytical and experimental studies, the main cause for emergence of undesirable high-frequency oscillations of a cabin was defined. The amplification factor which is the function of λ and length of cable was determined. The λ parameter is variable, and length of the cable changes depending on length passed by the cabin and is an amplification factor argument. For sustainable limitation of oscillations, use of dynamic dumper of lever type is proposed. Adjustment of the dumper natural vibration frequency in such a way that it is equal to the excitation frequency allows limiting of oscillations of the cabin and the elevator machine to reasonable value irrespective to position of a moving cabin in the shaft. Using dependences and plots which were obtained in the course of scientific analysis and experimental studies, reasonability of dumper application for sustainable limitation of high-frequency influence of the elevator machine on the base and obtaining of solutions of inertial forces equilibration problem was proved.