Branje, Melanie, Sadeghieh, Mehrdad, Kishawy, Hossam, Macdonald, Brendan et Hosseini, Ali.
2025.
« Jerk-limited profiles for a grooved cam to operate a Stirling engine displacer piston ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
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Résumé
This paper discusses the importance of groove cam and follower mechanisms in emerging applications like driving the displacer piston of a Stirling engine used to recover wasted heat and transform it into electricity. While conventional cam profiles aim to minimize acceleration and jerk for cycloid and harmonic motion, these designs fall short of providing a continuous jerk in the transition from rise, dwell, and return. This paper utilizes B-spline parametric curves to achieve cam profiles with continuous jerk. Continuous jerk is beneficial in this application because it limits the vibrations, sliding between cam and follower, and wear between the groove surfaces when the follower jumps throughout the cycle. Cam profile optimization is further investigated by altering the displacer piston stroke length and follower pressure angle and observing efficiency fluctuations. Manufacturing considerations including dynamic balancing, temperature, and material wear are discussed as these can affect the engine’s performance.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Date de dépôt: | 18 déc. 2025 15:08 |
| Dernière modification: | 18 déc. 2025 15:08 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32365 |
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