Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles
In racing motorcycles, the maximization of power transmission from the engine to the rear wheel is one of the critical aspects for improving the performance. Therefore, it is important to improve as much as possible the efficiency of the chain drive, consisting of a front sprocket on the output shaf...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Shahid Chamran University of Ahvaz
2022-07-01
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| Series: | Journal of Applied and Computational Mechanics |
| Subjects: | |
| Online Access: | https://jacm.scu.ac.ir/article_17379_2149309322c1b088965eef85a084af12.pdf |
| _version_ | 1818000332922290176 |
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| author | Lorenzo De Rossi Alexander Schramm Alessandro De Felice |
| author_facet | Lorenzo De Rossi Alexander Schramm Alessandro De Felice |
| author_sort | Lorenzo De Rossi |
| collection | DOAJ |
| description | In racing motorcycles, the maximization of power transmission from the engine to the rear wheel is one of the critical aspects for improving the performance. Therefore, it is important to improve as much as possible the efficiency of the chain drive, consisting of a front sprocket on the output shaft of the transmission and a rear sprocket connected to the rear wheel, linked by a roller chain. In this study, a multibody model of a chain drive of a racing motorcycle involving high rotational speeds is developed and validated. The energy losses are analyzed, highlighting their dependency on working conditions, and the efficiency is studied as a function of number of teeth on the sprockets, mounting of the chain and sprockets, selected speed ratio, and chain pitch. As a result, it is found that the efficiency is improved by a larger number of teeth with an equal speed ratio, by reducing the chain pitch (while keeping the sprocket diameters constant), and by larger diameter sprockets (in every working condition, including those of high rotational speeds, in contrast to findings in previous literature). Variations in clearances in the chain influence the efficiency, while variations of center distance between sprockets is not influential if the clearances are kept constant. |
| first_indexed | 2024-04-14T03:20:28Z |
| format | Article |
| id | doaj.art-fc1eb9c050704925a480ef35f7a437ed |
| institution | Directory Open Access Journal |
| issn | 2383-4536 |
| language | English |
| last_indexed | 2024-04-14T03:20:28Z |
| publishDate | 2022-07-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | Journal of Applied and Computational Mechanics |
| spelling | doaj.art-fc1eb9c050704925a480ef35f7a437ed2022-12-22T02:15:20ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362022-07-01831091110210.22055/jacm.2022.39795.346717379Multibody Efficiency Analysis of Chain Drives in Racing MotorcyclesLorenzo De Rossi0Alexander Schramm1Alessandro De Felice2Department of Engineering Enzo Ferrari, University of Modena and Reggio Emilia, Via Vivarelli 10, Modena, 41125, ItalyDepartment of Engineering Enzo Ferrari, University of Modena and Reggio Emilia, Via Vivarelli 10, Modena, 41125, ItalyDepartment of Engineering Enzo Ferrari, University of Modena and Reggio Emilia, Via Vivarelli 10, Modena, 41125, ItalyIn racing motorcycles, the maximization of power transmission from the engine to the rear wheel is one of the critical aspects for improving the performance. Therefore, it is important to improve as much as possible the efficiency of the chain drive, consisting of a front sprocket on the output shaft of the transmission and a rear sprocket connected to the rear wheel, linked by a roller chain. In this study, a multibody model of a chain drive of a racing motorcycle involving high rotational speeds is developed and validated. The energy losses are analyzed, highlighting their dependency on working conditions, and the efficiency is studied as a function of number of teeth on the sprockets, mounting of the chain and sprockets, selected speed ratio, and chain pitch. As a result, it is found that the efficiency is improved by a larger number of teeth with an equal speed ratio, by reducing the chain pitch (while keeping the sprocket diameters constant), and by larger diameter sprockets (in every working condition, including those of high rotational speeds, in contrast to findings in previous literature). Variations in clearances in the chain influence the efficiency, while variations of center distance between sprockets is not influential if the clearances are kept constant.https://jacm.scu.ac.ir/article_17379_2149309322c1b088965eef85a084af12.pdfchain driveefficiencymultibody analysismotorcycle dynamicsdriveline |
| spellingShingle | Lorenzo De Rossi Alexander Schramm Alessandro De Felice Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles Journal of Applied and Computational Mechanics chain drive efficiency multibody analysis motorcycle dynamics driveline |
| title | Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles |
| title_full | Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles |
| title_fullStr | Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles |
| title_full_unstemmed | Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles |
| title_short | Multibody Efficiency Analysis of Chain Drives in Racing Motorcycles |
| title_sort | multibody efficiency analysis of chain drives in racing motorcycles |
| topic | chain drive efficiency multibody analysis motorcycle dynamics driveline |
| url | https://jacm.scu.ac.ir/article_17379_2149309322c1b088965eef85a084af12.pdf |
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