A Study on the characteristics of the impact produced when the bubble on the crankshaft's main bearing ball collapses

Jianhua Xiang*, Chenglong Zhong, Kaicheng Li

*Corresponding author for this work

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

Abstract

The impact produced when the bubble on the main bearing wall of an internal combustion engine is an important factor causing cavitation failure. Based on the average Reynolds equation of lubricating oil and the energy of cavitation collapse, the thermoelastic fluid dynamics (TEHD) model of the main bearing and the bubble collapse Volume of Fluid (VOF) model in the oil film attached to the bearing wall were established, the load and flow field distribution when the bubble collapses were analyzed, and the impact characteristics on the bearing wall when the bubble collapses were explored. The results show that: when the bubble collapses, it begins to sag from the top until it ruptures to form two bubbles; and within a very short period of time when the bubble collapses, the pressure of the top jet on the wall can reach 31MPa and above.

Original languageEnglish
Title of host publicationProceedings - 2022 International Conference on Wireless Communications, Electrical Engineering and Automation, WCEEA 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages294-298
Number of pages5
ISBN (Electronic)9781665459525
DOIs
Publication statusPublished - 2022
Event2022 International Conference on Wireless Communications, Electrical Engineering and Automation, WCEEA 2022 - Indianapolis, United States
Duration: 15 Oct 202216 Oct 2022

Publication series

NameProceedings - 2022 International Conference on Wireless Communications, Electrical Engineering and Automation, WCEEA 2022

Conference

Conference2022 International Conference on Wireless Communications, Electrical Engineering and Automation, WCEEA 2022
Country/TerritoryUnited States
CityIndianapolis
Period15/10/2216/10/22

Keywords

  • Bubble Collapse
  • Cavitation
  • Impact Characteristics
  • Main Bearing

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