Investigation on the Thermal Behaviour of Aeroengine Bearing Chamber Using Thermal Networks

摘要：

Thermal analysis of aero-engine bearing chamber is commonly calculated by node thermal network, which is very important to the analysis of oil system. Traditional network is too simple to model the bearings chamber accurately, so it is rebuilt with eight nodes instead of previous three ones. A new heat distribution and network model of the bearing is established. Then, a new optimized thermal network is built, based on the Hertz thermal resistance between the main body and the surface of bearing. Finally, one bearing chamber is analyzed. By comparing the results of the previous and new thermal networks, the optimized one reflects the true thermal state of the bearing chamber better, especially the state of the bearing, with higher accuracy.

关键词： bearing chambers thermal network heat generating thermal resistance

作者: GAO Wen-jun LIU Zhen-xia LV Ya-guo

作者单位: School of Power and Energy, Northwestern Polytechnical University, Xian, China

会议类型: 国际会议

会议名称: 4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)

会议地点: 西安

会议语种:英文

页码: 275-278

在线出版日期: 2012-09-10（万方平台首次上网日期，不代表论文的发表时间）