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- Title
Non-linear Energy Sink Applied in the Vibration Suppression of a High-Speed Elevator System and Energy Harvesting.
- Authors
Tusset, Angelo M.; Fuziki, Maria E. K.; Lenzi, Giane G.; dos Santos, Guilherme P.; Balthazar, Jose M.; Brasil, Reyolando M. L. R. F.
- Abstract
Purpose: In this paper, the horizontal response of a vertical transportation (elevator) model with 4 degrees of freedom, excited by deformations in the rail guide, is numerically investigated, introducing in the system a Non-linear Energy Sink (NES), considered as an absorber of non-linear dynamic vibration, that acts simultaneously as a vibration absorber and as a source of power generation. Methods and Results: The levels of vibration and comfort in the elevator cabin, the efficiency of using a non-linear dynamic vibration absorber to reduce cabin vibrations, and its potential for generating energy are analyzed numerically. To consider the lateral displacement of the cabin, an external disturbance that represents the deformations and misalignment of the guide rails and the increase in the elevator speed is adopted, associating the lateral acceleration levels of the elevator with the comfort levels of the passengers according to ISO 2631 and BS 6841. Conclusions: The results of the numerical simulations demonstrated that the configuration of the appropriate parameters of the NES is essential to guarantee a better level of comfort to the passengers and the production of energy and that the increase in the speed associated with the use of the absorber of non-linear dynamic vibrations can improve the comfort level by reducing accelerations in the cabin.
- Subjects
ENERGY harvesting; ELEVATORS; VIBRATION absorbers; DEGREES of freedom; NONLINEAR systems; AIRCRAFT cabins
- Publication
Journal of Vibration Engineering & Technologies, 2023, Vol 11, Issue 6, p2819
- ISSN
2523-3920
- Publication type
Article
- DOI
10.1007/s42417-023-01066-5