A simplified coupled crankshaft–engine block model

Bilel Bellakhdhar; Abdelwaheb Dogui; Jean-Louis Ligier

doi:10.1016/j.crme.2013.09.008

A simplified coupled crankshaft–engine block model

Bilel Bellakhdhar ¹ ; Abdelwaheb Dogui ¹; Jean-Louis Ligier ²

¹ Laboratory of Mechanical Engineering, National Engineering School of Monastir, University of Monastir, Avenue Ibn Eljazzar, 5019 Monastir, Tunisia
² Haute École dʼingénierie et de gestion du canton de Vaud (HEIG-VD), 1, route de Cheseaux, CH-1400 Yverdon-les-Bains, Switzerland

Comptes Rendus. Mécanique, Volume 341 (2013) no. 11-12, pp. 743-754.

Abstract

Modern highly loaded crankshafts and bearing improvement requires an accurate knowledge of the acting forces. This information is now provided by quick and robust design tools based on simplified coupled engine block–crankshaft models. In this paper, a model based on beam theory is proposed. Several considerations are addressed. Among these considerations are bearing misalignments, crankshaft bending stiffness, clearance, hydrodynamic sustention and bearing deformation stiffness. The model substitutes efficiently engine simulation in crankshaft and bearing preliminary design.

Received: 2011-12-19
Accepted: 2013-09-28
Published online: 2013-10-22

DOI: 10.1016/j.crme.2013.09.008

Keywords: Bearing loads, Crankshaft, Stiffness, Beam model, Deformation, Misalignment

Author's affiliations:

Bilel Bellakhdhar ¹; Abdelwaheb Dogui ¹; Jean-Louis Ligier ²

¹ Laboratory of Mechanical Engineering, National Engineering School of Monastir, University of Monastir, Avenue Ibn Eljazzar, 5019 Monastir, Tunisia
² Haute École dʼingénierie et de gestion du canton de Vaud (HEIG-VD), 1, route de Cheseaux, CH-1400 Yverdon-les-Bains, Switzerland

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     author = {Bilel Bellakhdhar and Abdelwaheb Dogui and Jean-Louis Ligier},
     title = {A simplified coupled crankshaft{\textendash}engine block model},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {743--754},
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     number = {11-12},
     year = {2013},
     doi = {10.1016/j.crme.2013.09.008},
     language = {en},
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Bilel Bellakhdhar; Abdelwaheb Dogui; Jean-Louis Ligier. A simplified coupled crankshaft–engine block model. Comptes Rendus. Mécanique, Volume 341 (2013) no. 11-12, pp. 743-754. doi : 10.1016/j.crme.2013.09.008. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2013.09.008/

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