Study on Heat Effect Mechanism and Rules of Crankshaft Bearing of Internal Combustion Engine

Decheng Wang, Jianhua Xiang, Jian Liu, Xuehui An, Jialin Wang, Kuan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper establishes thermal elastohydro-dynamics (TEHD) calculation model of crankshaft main bearing of internal combustion engine based on average Reynolds equation and dynamic adaptation equation considering asperity contact, analyzes its lubrication and friction characteristics, discusses mechanism of heat generation and heat exchange, and acquires corresponding effect law. Results show: most main bearings are in status of mixture lubrication, and generate heat through asperity contact and viscous friction; heat dissipation proportion of lubricating oil is 24.4%, and temperature rises 23.5°; as explosion pressure increases, power consumption is larger, oil temperature lowers, and minimum oil film thickness is reduced; while when oil supply pressure changes, the law of function is opposite.

Original languageEnglish
Title of host publicationProceedings - 2022 Global Conference on Robotics, Artificial Intelligence and Information Technology, GCRAIT 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages522-528
Number of pages7
ISBN (Electronic)9781665481922
DOIs
Publication statusPublished - 2022
Event2022 Global Conference on Robotics, Artificial Intelligence and Information Technology, GCRAIT 2022 - Chicago, United States
Duration: 30 Jul 202231 Jul 2022

Publication series

NameProceedings - 2022 Global Conference on Robotics, Artificial Intelligence and Information Technology, GCRAIT 2022

Conference

Conference2022 Global Conference on Robotics, Artificial Intelligence and Information Technology, GCRAIT 2022
Country/TerritoryUnited States
CityChicago
Period30/07/2231/07/22

Keywords

  • Asperity contact
  • Calculation Model
  • Heat Effect
  • Law of Function
  • Main Bearing
  • Mixture Lubrication

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