CFD Study on the Windage Power Loss of High Speed Gear

2018 5th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造;土木建筑工程

He, A.^1 ; Deng, R.^1 ; Xiong, Y.^1

Department of Wind Power Development, Nanjing High Accurate Drive Equipment Manufacturing Group Co., Ltd., Nanjing, China^1

关键词: CFD simulations;    High Speed;    High-speed gears;    Physical mechanism;    Power-losses;    Rotating speed;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/473/1/012044/pdf
DOI  :  10.1088/1757-899X/473/1/012044

来源: IOP

【 摘 要 】

The windage power loss is main factor of the power loss in a high speed gearbox. CFD simulation method has been developed for a detailed understanding of the physical mechanism of windage power loss. Comparisons are made with experimental data from the open literature. The CFD results are in good agreement with experiment. The study focuses on the influence of the shroud on the windage power loss for rotating speed ranging from 5000rpm to 7000rpm. It is critical to capture the energy efficiency prize by shrouding the gear. Smooth shroud and grooved shroud have been selected to reduce the windage power loss. It is observed that the better performance occurs with shroud, whereas it is found that the grooved shroud provides a considerable increase in energy efficiency at about 10% over the smooth shroud.