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TECHNICAL PAPERS

An Elastohydrodynamic Coupling of a Rotating Crankshaft and a Flexible Engine Block

[+] Author and Article Information
Omidreza Ebrat, Kumar Vaidyanathan

Federal-Mogul Technical Center, 47001 Port St., Plymouth, MI 48170

Zissimos P. Mourelatos

Mechanical Engineering Department, Oakland University, Rochester, MI 48309

Kexin Hu

Metaldyne Corporation, 47603 Halyard Drive, Plymouth, MI 48170

Nickolas Vlahopoulos

Department of Naval Architecture & Marine Engineering, University of Michigan, Ann Arbor, MI 48109

J. Tribol 126(2), 233-241 (Apr 19, 2004) (9 pages) doi:10.1115/1.1645297 History: Revised July 10, 2003; Received December 13, 2003; Online April 19, 2004
Copyright © 2004 by ASME
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References

Figures

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Notation for the flexible crankshaft/flexible block interaction
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Schematic for information mapping between a high-density lubrication mesh and a low-density bearing mesh
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Four-point Legendre interpolation schematic
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Load-carrying capacity error for linear and four-point Legendre interpolation
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Schematic of area weighting interpolation from the high-density to the low-density mesh
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Crankshaft and block finite element mesh and cylinder pressure trace for an automotive V6 engine
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Main bearing hydrodynamic pressure distribution illustrating the pressure field split and bearing edge loading
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Comparison of calculated main bearing loads for a V6 automotive engine with flexible crankshaft and block: Case 1—without crankshaft rigid body dynamics, with simplified nonlinear springs; Case 2—without crankshaft rigid body dynamics, with detailed hydrodynamics; Case 3—with crankshaft rigid body dynamics, with simplified nonlinear springs; and Case 4—with crankshaft rigid body dynamics, with detailed hydrodynamics.

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