{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/51631"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/51631","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Modeling of the effects of lubricant chemistry on engine component wear and parametric analysis","abstract":"Recently, due to the strengthened regulations on diesel engine emissions, the dynamic understanding of engines' antiwear processes has drawn renewed attention. Oil additives can help engines resist wear by forming a thin solid layer of antiwear film, and zinc dialkyldithiophosphate (ZDDP) is the most commonly used oil additive. There has been sufficient experimental effort in trying to understand the dynamics of ZDDP antiwear film formation and its effect on wear between engine components, but the effort of predicting antiwear film formation and the effect of lubricant chemistry on engine wear through modeling has just begun to emerge. The purpose of this research is going to improve such a model modeling ZDDP antiwear processes so that it can be used to understand the dynamics of antiwear film formation at different operating conditions, and use this model to gain insight into the antiwear film formation processes. The effect of different processes on antiwear film formation and the sensitivity of the film formation to different parameters have been demonstrated and analyzed.","abstract_html":"Recently, due to the strengthened regulations on diesel engine emissions, the dynamic understanding of engines' antiwear processes has drawn renewed attention. Oil additives can help engines resist wear by forming a thin solid layer of antiwear film, and zinc dialkyldithiophosphate (ZDDP) is the most commonly used oil additive. There has been sufficient experimental effort in trying to understand the dynamics of ZDDP antiwear film formation and its effect on wear between engine components, but the effort of predicting antiwear film formation and the effect of lubricant chemistry on engine wear through modeling has just begun to emerge. The purpose of this research is going to improve such a model modeling ZDDP antiwear processes so that it can be used to understand the dynamics of antiwear film formation at different operating conditions, and use this model to gain insight into the antiwear film formation processes. The effect of different processes on antiwear film formation and the sensitivity of the film formation to different parameters have been demonstrated and analyzed.","abstract_has_math":false,"creators":["Liao, Kai, Ph. D. Massachusetts Institute of Technology"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.","school":null,"contributors":[],"advisors":["Victor W. Wong."],"committee_chairs":[],"committee_members":[],"year":2009,"date_issued":"2009","date_published":"2009","updated_at":"2026-07-22T22:21:34Z","subjects":["Aeronautics and Astronautics."],"languages":["eng"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/51631","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Victor W. Wong."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics."]},{"key":"dc:creator","label":"Author","values":["Liao, Kai, Ph. D. 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They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/51631"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2009.","Page 75 blank.","Includes bibliographical references (p. 71-72)."]},{"key":"dc:description.abstract","label":"Abstract","values":["Recently, due to the strengthened regulations on diesel engine emissions, the dynamic understanding of engines' antiwear processes has drawn renewed attention. Oil additives can help engines resist wear by forming a thin solid layer of antiwear film, and zinc dialkyldithiophosphate (ZDDP) is the most commonly used oil additive. There has been sufficient experimental effort in trying to understand the dynamics of ZDDP antiwear film formation and its effect on wear between engine components, but the effort of predicting antiwear film formation and the effect of lubricant chemistry on engine wear through modeling has just begun to emerge. The purpose of this research is going to improve such a model modeling ZDDP antiwear processes so that it can be used to understand the dynamics of antiwear film formation at different operating conditions, and use this model to gain insight into the antiwear film formation processes. The effect of different processes on antiwear film formation and the sensitivity of the film formation to different parameters have been demonstrated and analyzed."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.M."]},{"key":"dc:title","label":"Title","values":["Modeling of the effects of lubricant chemistry on engine component wear and parametric analysis"]}]}],"canonical_facts":{"dc:contributor.advisor":["Victor W. Wong."],"dc:contributor.department":["Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics."],"dc:contributor.other":["Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics."],"dc:creator":["Liao, Kai, Ph. D. 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There has been sufficient experimental effort in trying to understand the dynamics of ZDDP antiwear film formation and its effect on wear between engine components, but the effort of predicting antiwear film formation and the effect of lubricant chemistry on engine wear through modeling has just begun to emerge. The purpose of this research is going to improve such a model modeling ZDDP antiwear processes so that it can be used to understand the dynamics of antiwear film formation at different operating conditions, and use this model to gain insight into the antiwear film formation processes. The effect of different processes on antiwear film formation and the sensitivity of the film formation to different parameters have been demonstrated and analyzed."],"dc:description.degree":["S.M."],"dc:identifier.uri":["http://hdl.handle.net/1721.1/51631"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Aeronautics and Astronautics."],"dc:title":["Modeling of the effects of lubricant chemistry on engine component wear and parametric analysis"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:21:34Z"}