An improved FEM model was developed to simulate the elastic behavior of a connecting rod bearing, accounting for the displacements caused by the tightening torque applied to the bolts that join the cap and the rod. These initial displacements are added to the pressure induced displacements, to enhance the solution of the elastohydrodynamic bearing lubrication problem. The big end bearing of a marine diesel engine was modeled and analyzed under combustion process loads and inertia loads using the Newton-Raphson method together with the Murty’s algorithm. Some important differences between these results and other results published for the same bearing without the bolt preload are identified and discussed.
Issue Section:
Technical Papers
Keywords:
finite element analysis,
machine bearings,
tribology,
torque,
hydrodynamics,
lubrication,
elasticity,
friction
1.
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.2.
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7.
Fantino, B., Godet, M., and Frene, J., 1983, “Dynamic Behaviour of an Elastic Connecting Rod Bearing: Theoretical Study,” Proceedings of the Society of Automotive Engines, Study of Engine Bearings and Lubrication S. P. 539 No. 830307, pp. 23–32.
8.
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.14.
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.16.
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.17.
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18.
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.19.
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,” Transaction of the ASME
, 122
, pp. 94
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.20.
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, G.
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, J.
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.21.
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22.
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25.
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26.
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1
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by ASME
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