【作者】 刘宝龙； 洪杰；

【Author】 LIU Baolong,HONG Jie (School of Jet Propulsion,Beijng University of Aeronautics and Astronauties,Beijing 100191,China)

【机构】 北京航空航天大学能源与动力工程学院；

【摘要】 随着航空技术的发展,航空发动机研制的难度、成本和风险日益增加,积极开展通用核心机技术研究,走基于通用核心机的派生发展的研制道路成为解决难题的最佳途径。通用核心机转子系统结构形式应当根据拟发展的涡喷/涡扇及涡轴/涡桨发动机的推力级或功率级确定。转子系统支承方案与承力系统的设计应当充分考虑拟派生发展的不同类型发动机的低压系统结构特征,以尽量小的核心机结构改动实现与不同低压转子系统的气动与结构协调。部件设计应当综合考虑气动性能、强度与刚度的折衷,使其具有宽广的高效、稳定工作范围,并且具备一定的性能提升空间。更多还原

【Abstract】 The increases in difficulty,cost and risk of the aero-engine development make it necessary to study the versatile core technology.Derivative development based on the versatile core is the best method to solve the problems above.The rotor structure form of the versatile core engine should be determined according to the thrust or power class.The rotor supporting system should be designed in consideration of the differences in variable types of the developed engines to allow some small changes in core engine structure in follow-up derivative development.The component of the versatile core engine must be designed with a compromise between the intensity,rigidity and aero-dynamic performance to work effectively and stably within a wider operation range,certain improvement leeway should also be designed.更多还原