目的 某型发动机转子系统直接采用JP-10燃料对传动部件进行润滑，但燃料润滑的可靠性是限制其应用的瓶颈技术之一，因此拟研究传动部件在JP-10介质中的润滑状态。方法 建立点接触部分膜弹流模型，模型以弹流润滑理论与弹性固体接触理论为基础，应用有限差分法进行完全数值求解。通过比较在JP-10、航空润滑油4050和4109介质中，油膜厚度、油膜压力及粗糙接触压力的分布，分析了JP-10的润滑性能。结果 JP-10形成的油膜厚度与压力均小于另外两种润滑油，JP-10介质中的粗糙接触压力远大于另外两种润滑油中的粗糙接触压力。结论 JP-10的润滑性能比常用的航空润滑油弱，其润滑可靠性较低，需要采取先进表面加工技术对传动部件间的接触表面进行防护，同时在合理范围内提高流体卷吸速度，提高表面加工质量，有利于流体润滑膜的形成。

JP-10 fuel has directly used to lubricate transmission parts in certain type of aero-engine. However, reliability of fuel lubrication is one of the obstacles restricting its application. A partial EHL model of point contact was established to study lubricating conditions of the transmission parts in low viscosity fuel JP-10. Finite difference method was used to obtain numerical solution of this model, which was based on elastohydrodynamic lubrication theory and elastic contact theory. The lubricating property of JP-10 was studied by comparing distributions of film thickness, film pressure and contact pressure among JP-10, aero lubricant 4050 and 4109. The film thickness and pressure of JP-10 were lower than that of the other lubricants, while asperity contact pressure in JP-10 was higher. Either lubricating property or lubricating reliability of JP-10 was lower than that of common aero oils. Advanced surface processing techniques, higher rotating speed within reasonable limits and higher surface precision are conducive to formation of fluid lubricating film.