Show simple item record

dc.contributor.advisorMatthews, Ronald D.en
dc.creatorKim, Myoungjinen
dc.date.accessioned2008-08-28T22:25:15Zen
dc.date.available2008-08-28T22:25:15Zen
dc.date.issued2005en
dc.identifierb60769981en
dc.identifier.urihttp://hdl.handle.net/2152/1954en
dc.descriptiontexten
dc.description.abstractAs emissions regulations become more stringent and fuel prices increase at a significant rate, the fuel efficiency of piston engines becomes more important than ever. Since most of the engine’s friction losses are from the piston/ring assembly, it is indispensable to reduce the piston/ring assembly friction for better fuel economy. The Rotating Liner Engine (RLE) was developed to remove the boundary lubrication of the piston/ring assembly friction through cylinder liner rotation. Even though the RLE was initially developed mainly by Dr. Dardalis several years ago, the friction reduction effect of the RLE was not confirmed except via preliminary motoring tests using a crude dynamometer. The main purpose of this dissertation is to confirm the RLE effect on piston assembly friction reduction using sophisticated measurement methods. Three different friction measurement methods were applied in measuring the friction force difference between a baseline engine and a prototype RLE. Through the use of three different friction measurement methods, the friction reduction of the RLE has been confirmed via this dissertation research and each of the friction measurement methods is also compared based on its measurement results. The analysis of the friction mechanism of the baseline engine was performed using the instantaneous IMEP method and a commercial simulation program called RINGPAK. Through the use of experimental methods and the simulation, the friction mechanism of the piston/ring assembly is analyzed. The limitation of the experimental and the calculation methods is also discussed.
dc.format.mediumelectronicen
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subject.lcshFrictionen
dc.subject.lcshPistonsen
dc.subject.lcshInternal combustion enginesen
dc.titleFriction force measurement and analysis of the rotating liner engineen
dc.description.departmentMechanical Engineeringen
dc.identifier.oclc67839933en
dc.type.genreThesisen
thesis.degree.departmentMechanical Engineeringen
thesis.degree.disciplineMechanical Engineering.en
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record