Elastohydrodynamic simulation of the slider bearing

Bai, Liang; Kuivaniemi, Teemu; Halla-aho, Pasi; Frondelius, Tero

doi:10.23998/rm.64922

Cited by 8 publications

(12 citation statements)

References 5 publications

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“…Elastohydrodynamic bearing models are used in the MBS to solve the oil film pressure in the sliding bearings [1]. As the big end housing needs to be cylindrical after the connecting rod is assembled, it is machined after the bolt tightening.…”

Section: Methodsmentioning

confidence: 99%

Large bore engine connecting rod fretting analysis

Mäntylä

Göös²,

Leppänen³

et al. 2017

RakMek

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Summary.A detailed contact analysis of a large connecting rod was performed to evaluate the fretting risk in the big end. Simulation was carried out in Abaqus considering all relevant boundary conditions, such as assembly loads, housing machining and dynamics from a flexible multibody simulation with elastohydrodynamic bearings. Being one of the most important variables, the local coefficient of friction (COF) and its evolution is calculated during the solution by using a subroutine in Abaqus. The model is validated by strain gauge measurements in a running engine. The resulted friction coefficient distribution matches well with the findings from a laboratory engine. The described methodology increases the accuracy of the fretting damage prediction by using a more realistic friction coefficient definition.

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Section: Methodsmentioning

confidence: 99%

Large bore engine connecting rod fretting analysis

Mäntylä

Göös²,

Leppänen³

et al. 2017

RakMek

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“…The multibody simulation model in AVL Excite PU [5] consists of three flexible bodies: a crank pin predefining circular motion, a connecting rod as explained above, and a piston pin. Elastohydrodynamic (EHD) bearing models [1] couple these three bodies together. In addition, oil bores are modelled as boundary conditions for Reynolds equation solution.…”

Section: Multibody Simulation (Avl Excite Pu)mentioning

confidence: 99%

Large Bore Connecting Rod Simulations

Göös¹,

Leppänen²,

Mäntylä³

et al. 2017

RakMek

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Summary. On combustion engine a connecting rod converts the reciprocating motion of a piston to the rotating motion of a crankshaft. Simulation of a large bore connection rod has been performed in Abaqus Standard, using boundary conditions from AVL EXCITE Power Unit. By using the latest simulation technologies and the well known boundary conditions, simulated stresses correspond very well with the measured ones from a running engine.

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“…To ensure the reliable function of this critical component, multiple types of analysis are carried out. The most common types are the static concept analysis, the dynamics stress and fatigue analysis and the closely related bearing [2], connecting rod [6] and fretting analysis [9]. The virtual engine crankshaft simulation methodology is presented in [3].…”

Section: Introductionmentioning

confidence: 99%