Refinement of engine bearing design techniques

Conway-Jones, J.M.; Martin, F. A.; Gojon, Romain

doi:10.1016/0301-679x(91)90042-8

Cited by 17 publications

(6 citation statements)

References 3 publications

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“…3 are mechanical linkage arrangements used by other researchers). The disadvantage of both of these experimental approaches, however, is that they involve a signi®cant additional mass being added to the Overview of theoretical models given N/A Chang [28] Analysis using FE method to assess contact pressures between bearing liner and its housing N/A Conway-Jones et al [27] Review paper presents some of the considerations and procedures for bearing design N/A Goenka and Paranjpe [29] Compares EHD analysis with rigid bearing, ®lm history and mobility analysis.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Another major concern of researchers has been how to allow properly for the shape of the oil ®lmÐthe bearing geometry, the location of oil inlet and outlet ports and the cavitation boundaries. Conway-Jones et al [27] published a survey of research concerned with these issues. In their paper, theoretical models are discussed that explain bearing surface temperature changes and the effect of oil supply ports.…”

Section: Theoretical Bearing Modelsmentioning

confidence: 99%

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Reciprocating machinery bearing analysis: Theory and practice

Goodwin

Nikolajsen

Ogrodnik

2003

Proceedings of the Institution of Mechanical Engineers, Part J:

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Section: Experimental Methodsmentioning

confidence: 99%

Section: Theoretical Bearing Modelsmentioning

confidence: 99%

Reciprocating machinery bearing analysis: Theory and practice

Goodwin

Nikolajsen

Ogrodnik

2003

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…For an engine bearing, only a small percentage of the total heat generated is transmitted to the surrounding area was via the journal and the bush. A typical assumption [30] for the engine bearing is that 85±95 per cent of the heat generated in the oil is carried away by the oil flow. This assumption was supported by Paranjpe and Han [13] in their thermohydrodynamic (THD) transient analysis.…”

Section: Effective Temperaturementioning

confidence: 99%

“…Measurements on a typical gasoline engine at various speeds (up to 6000 r/min), made with T and N technology mechanical telemetry linkage [30] showed that the difference in temperature generally does not exceed 4 8C between four thermocouples equally spaced around the connecting-rod bearing. Similarly the experimental results of Furuhama [31] indicated that the temperature is almost uniform around the big-end connecting-rod bearing of an automotive gasoline engine.…”

Section: Effective Temperaturementioning

confidence: 99%

Comprehensive design methodology for an engine journal bearing

Hirani

Athre

Biswas

2000

Proceedings of the Institution of Mechanical Engineers, Part J:

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The trend towards high power output, high speed and low power loss in engines requires a better understanding of bearing behaviour. Research in this area is directed more towards different aspects involved in bearing analyses, rather than providing a comprehensive guideline on design of bearing. This effort compiles the design methodology for selection of diametral clearance and bearing length by limiting the minimum film thickness, maximum pressure and temperature. The design procedure is summarized on the basis of the existing rapid bearing analyses for evaluation of the journal trajectory, minimum film thickness and maximum pressure and simplified thermal analysis. A flow chart is provided for step-by-step bearing design. Finally, two case studies of engine bearings are described: one investigates the VEB bigend connecting-rod bearing for a large industrial reciprocating engine and the other a main crankshaft bearing for an automotive engine.The methodology translates into easy-to-use expressions and the overall procedure is outlined, using practical data to demonstrate how this can be employed effectively by users.

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“…The load of a crankshaft bearing is one of the preconditions of bearing lubrication analysis and affects directly the precision of bearing lubrication analysis. The free beam method is a traditional method used for calculating the load of a crankshaft main bearing of a multi-cylinder engine [1][2][3]. This method does not consider the influence of the forces of other adjacent cylinders; hence, its result differs from the actual situation greatly.…”

Section: Introductionmentioning

confidence: 99%

Whole crankshaft beam-element finite-element method for calculating crankshaft deformation and bearing load of an engine

Sun

Wang

Chen

2009

Proceedings of the Institution of Mechanical Engineers, Part J:

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Crankshaft deformation and bearing load are very important for the lubrication analyses of crankshaft bearings of an engine. The calculating methods of crankshaft deformation and bearing load will affect the results. There were some problems in the current methods used for calculating crankshaft deformation and bearing load, such as complicated model, more time taken for calculation, and error brought by simplification. In this article, the crankshaft of a four-cylinder engine was taken as the object of study, and the whole crankshaft beam-element finite-element method to calculate crankshaft bearing load and crankshaft deformation of a multi-cylinder engine was studied. The results show that this method is closer to the actual condition and can calculate the loads of all main bearings simultaneously compared with traditional methods used for calculating the crankshaft bearing load of a multi-cylinder engine. Meanwhile, this method is a simple, convenient, time-saving method used for calculating crankshaft deformation compared to the whole crankshaft solid-element finite-element method, and its calculating precision can meet engineering demands.

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Refinement of engine bearing design techniques

Cited by 17 publications

References 3 publications

Reciprocating machinery bearing analysis: Theory and practice

Reciprocating machinery bearing analysis: Theory and practice

Comprehensive design methodology for an engine journal bearing

Whole crankshaft beam-element finite-element method for calculating crankshaft deformation and bearing load of an engine

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