A Method to Determine the Two Components of the Crankshaft Load on a Bearing Cap in Firing Engines

Fluixá, Francisco V. Tinaut; Melgar, Andrés; Giménez, B.; Fernández, L.; Huidobro, H.

doi:10.4271/2000-01-1340

Cited by 5 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Crankshaft is assumed to continuous beam resting on rigid supports. This approximation is closer to real conditions [5][6][7]. Afterwards, the main bearing was modelled by non-linear springs [6].…”

Section: Introductionmentioning

confidence: 65%

“…This approximation is closer to real conditions [5][6][7]. Afterwards, the main bearing was modelled by non-linear springs [6]. Then, a coupled quasi-static crank model and a hydrodynamic bearing model were defined [8,9].…”

Section: Introductionmentioning

confidence: 94%

“…It is often assumed as a beam [15] or as an assembly of beam finite elements [16]. Sometimes; it is modelled as a system of rigid elements connected with flexion springs [6]. In this work, the crankshaft is assumed as a continuous beam composed of four sections (one for each throw) with elliptic cross-sections, resting on five supports simulating the main bearings.…”

Section: Modeling Of Crankshaft Systemmentioning

confidence: 99%

“…This is, of course, a rough approximation. The traditional bending stiffness determination method consists in carrying out a "three-point" bending test on the real crankshaft [6,8]: the crankshaft is resting on two V supports at the extreme mid-bearing positions. The bending effort is applied at the central pivot middle.…”

Section: The Crankshaft Bending Stiffnessmentioning

confidence: 99%

See 3 more Smart Citations

A simplified coupled crankshaft–engine block model

Bellakhdhar

Dogui

Ligier

2013

Comptes Rendus. Mécanique

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 94%

Section: Modeling Of Crankshaft Systemmentioning

confidence: 99%

Section: The Crankshaft Bending Stiffnessmentioning

confidence: 99%

See 2 more Smart Citations

A simplified coupled crankshaft–engine block model

Bellakhdhar

Dogui

Ligier

2013

Comptes Rendus. Mécanique

View full text Add to dashboard Cite

show abstract

Load characteristics of engine main bearing : Comparison between theory and experiment

Cho

Seung-Hyuk

et al. 2002

KSME International Journal

View full text Add to dashboard Cite

Rigidité en flexion d’un vilebrequin

Bellakhdhar

Dogui

Ligier

2011

Mécanique & Industries

View full text Add to dashboard Cite

Durant les premièresétapes de dimensionnement d'un moteur, on définit des cotes clefs relatives en particulier au vilebrequin. Le choix approprié de ces cotes, dimensionnant pour d'autres pièces, nécessite plusieurs itérations. N'étant pas aisé de faire appelà des calculs de structure de typeélémentsfinis qui seront coûteux en temps et qui nécessitent des moyens de calcul importants, un calcul de type (( résistance des matériaux )) peutêtre utile, rapide et suffisamment précis dans ce cas. Le vilebrequin est alors modélisé en flexion par un arbre cylindrique, composé de quatre tronçonsà section elliptique. Chaque tronçon représente une partie inter-paliers du vilebrequin d'un moteur quatre cylindres en ligne. Ce travail présente une méthodologie d'identification des caractéristiques géométriques des sections droites elliptiqueś equivalentes d'une modélisation de type R.d.M. sensées représenter la géométrie réelle du vilebrequin. Disposant de la CAO du vilebrequin et du chargement réel au cours du cycle moteur on calcule enélasticité tridimensionnelle paréléments-finis les réactions aux paliers. Par comparaison avec des calculs de même type du modèle R.d.M., on identifie les sections et leur ellipticité pour la poutre (( vilebrequin )). Cette méthodologie a le mérite d'être simple et efficace lors des calculs quasi statiques du vilebrequin.

show abstract

A Method to Determine the Two Components of the Crankshaft Load on a Bearing Cap in Firing Engines

Cited by 5 publications

References 5 publications

A simplified coupled crankshaft–engine block model

A simplified coupled crankshaft–engine block model

Load characteristics of engine main bearing : Comparison between theory and experiment

Rigidité en flexion d’un vilebrequin

Contact Info

Product

Resources

About