Oil Jet Lubrication and Heat Dissipation Characteristics of High-Speed Helical Gears: Numerical Simulation and Experimental Validation

EasyChair Preprint 15212

Abstract

High-speed gears are widely used in various fields such as new energy vehicles and aviation, where efficient lubrication and heat dissipation are essential for their performance. Gear failure due to overheating at high speeds and heavy loads is a common problem. As a result, oil-injected lubrication is used to improve heat dissipation and reduce tooth surface temperatures. In this study, a numerical simulation model of high-speed helical gear injection lubrication considering injection angle, distance and speed is proposed. Computational fluid dynamics (CFD) methods are used to analyze temperature fields and heat dissipation characteristics. Grid independence verification is performed to ensure the reliability of simulation results. In addition, experimental tests were carried out using thermocouples and infrared thermography to validate the simulation data. The results show that the optimization of fuel injection parameters can significantly improve the cooling performance of gears, and the injection angle, injection distance and injection speed have a significant impact on the heat transfer process. The study provides insights into the design of more efficient high-speed gear lubrication systems.

Keyphrases: CFD, High-speed gears, Oil jet lubrication, experimental validation, heat dissipation, numerical simulation

@booklet{EasyChair:15212,
  author    = {Xinghe Jiang and Changjiang Zhou and Jie Su},
  title     = {Oil Jet Lubrication and Heat Dissipation Characteristics of High-Speed Helical Gears: Numerical Simulation and Experimental Validation},
  howpublished = {EasyChair Preprint 15212},
  year      = {EasyChair, 2024}}