Prediction of losses in belt-type continuously variable transmission due to sliding between belt and disc

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Poll, G.; Kruse, T.; Meyer, C.: Prediction of losses in belt-type continuously variable transmission due to sliding between belt and disc. In: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 220 (2006), Nr. 3, S. 235-242. DOI: https://doi.org/10.1243/13506501JET141

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/3039

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Sum total of downloads: 88




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Abstract: 
The efficiency of belt-type continuously variable transmission (CVT) - apart from the power consumption of auxiliary systems such as hydraulics - predominantly depends on the energy dissipated during sliding at the belt-disc contacts. These sliding motions are a consequence of elastic deformations and misalignments because of clearances, resulting in a so-called spiral path of the belt elements on the discs and hence tangential and radial sliding motions. The performance of such systems can be predicted through an iterative computation by numerically solving a set of differential equations for the forces and motions coupled with a finite-element computation of the deformations. A comparison with elaborate measurements of deflections, belt motions, and losses shows that a relatively simple modified Coulomb type friction model with a steep gradient through the origin delivers sufficiently accurate results. The computations reveal the existence of 'locked' zones with extremely low 'creeping' motions. Thus, the mechanisms of power transmission in belt-type CVT are better understood and designers have a validated tool to optimize shaft and disc geometry concerning maximum efficiency. JET141© IMechE 2006.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: article
Publishing status: publishedVersion
Issue Date: 2006
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 50 56.82%
2 image of flag of United States United States 9 10.23%
3 image of flag of China China 8 9.09%
4 image of flag of Japan Japan 5 5.68%
5 image of flag of Czech Republic Czech Republic 4 4.55%
6 image of flag of Italy Italy 2 2.27%
7 image of flag of No geo information available No geo information available 1 1.14%
8 image of flag of Taiwan Taiwan 1 1.14%
9 image of flag of Russian Federation Russian Federation 1 1.14%
10 image of flag of Netherlands Netherlands 1 1.14%
    other countries 6 6.82%

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