Use of Non Linear Analysis in Powertrain Design for Prediction of Cylinder Bore Distortion, Design Changes for Reduction along with Experimental Validation

Patwardhan, M. A.; Paranjpe, Jagannath M; Ramdasi, S. S.; Karanth, Nagesh Voderahobli; Marathe, N. V.; Bhat, Prasad

doi:10.4271/2015-26-0202

Cited by 6 publications

(1 citation statement)

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“…The influence of cylinder liner deformation on piston ring lubrication was studied by Usman by using an elastohydrodynamic lubrication model [19]. The researchers of [20] predicted cylinder bore deformation by establishing a finite-element model of an engine assembly, validated by a test method. Cheng et al [21] developed a model of cylinder liner deformation by considering piston conformability to predict gas blow-by at different operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Analysis of out-of-round deformation of a dry cylinder liner of a non-road high-pressure common-rail diesel engine based on multi-field coupling

Wang

Luo

et al. 2021

J Braz. Soc. Mech. Sci. Eng.

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The deformation of cylinder liner directly affects the sealing performance of the friction components in internal combustion engines, resulting in high oil consumption, engine power loss, and high-particulate matter emissions. Previous research works focused more on deformation of the wet vehicular cylinder liners, however, the effects of different loads on the dry liner deformation is not clear yet. A non-road high-pressure common-rail diesel engine was selected as the research object, and a coupled model of the engine was developed based on fluid-solid coupled heat transfer theory. After the accuracy of the model was verified by temperature measurement of the cylinder head and cylinder liner, deformation of the dry cylinder liner was studied. The results show that the axial and radial deformations of the cylinder liner are not uniform under the bolt preload condition. Large deformation occurs at the first liner and fourth liner, with the maximum deformation occurring at the top of fourth liner for 10.14 μm. Under the condition of thermal load, the temperature of cylinder liner exhibits a distribution of three-segments from the top to bottom. The liner deformation is not uniform, and the maximum deformation occurs at the top of the fourth liner for 304 μm. The radial deformations of all four cylinder liners present a symmetrical structure of a "heart" shape with respect to the centerline of the second and third cylinders. The axial deformation of each liner exhibits a "barrel" shape which is convex in the middle and narrow at the two ends.

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Section: Introductionmentioning

confidence: 99%