Abstract
We have introduced and patented a novel type of choppers with rotational shafts which can be operated at much higher speeds than classical choppers with rotational disks or with oscillatory elements. The aim of this preliminary study is to perform a Finite Element Analysis (FEA) using ANSYS of the fundamental issues of choppers with shafts, i.e. their structural stability and deformations—for their maximum possible rotational speed, of 120 krpm. The main steps of the FEA are pointed out. While different possible materials can be explored with regard to the maximum speed that the choppers are operated at, steel is considered in this study. The multi-parametric analysis is approached taking into account geometrical parameters of the device: radius and axial dimension of the shaft, shape, dimensions, and number of slits. The performances of the choppers with regard to their deformations and the highest possible rotational speed can be obtained from the analysis. Due to space limitations, preliminary results of this analysis for a one-slit shaft and the corresponding rules-of-thumb that can be extracted from it are briefly presented.
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Acknowledgements
This work is funded by the Romanian Authority for Scientific Research, CNDI grant PN-III-P2-2.1-BG-2016-0297 (http://3om-group-optomechatronics.ro/).
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Csukas, ES., Duma, VF. (2018). Finite Element Analysis of a Configuration of Optomechatronic Choppers with Rotational Shafts. In: Awrejcewicz, J. (eds) Dynamical Systems in Applications. DSTA 2017. Springer Proceedings in Mathematics & Statistics, vol 249. Springer, Cham. https://doi.org/10.1007/978-3-319-96601-4_6
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DOI: https://doi.org/10.1007/978-3-319-96601-4_6
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