ARJ21飞机发动机总体性能方案设计

袁月薇¹，伦浩²，丁宁¹

1.中国航发沈阳发动机研究所，辽宁 沈阳  110011；

2.空军装备部驻沈阳地区第一军事代表室，辽宁 沈阳  110031

摘要：为实现ARJ21飞机配装国产大涵道比涡扇发动机的目标，采用航空发动机性能仿真软件GasTurb，结合常规分开排气大涵道比涡扇发动机，以CF34-10A成熟核心机为基础，综合考虑起飞推力保持能力、巡航耗油率、排气温度裕度等要求开展派生方案设计，并对起飞状态、高空巡航、爬升状态的飞机发动机性能进行分析。结果表明：设计的发动机采用单级风扇、4级增压机和9级高压压气机的压缩方案时，最佳涵道比为4.45，总压比为26.3，高温起飞状态涡轮前温度为1 652 K；相比CF34-10A发动机，设计发动机的巡航设计点耗油率升高约4.3%；设计方案在发动机推力、涡轮前温度和耗油率方面均满足设计要求，具有一定的可行性。

关键词：ARJ21飞机；大涵道比发动机；巡航；耗油率；性能

Overall performance scheme design of ARJ21 aircraft engine

YUAN Yuewei¹, LUN Hao², DING Ning¹

1.AECC Shenyang Engine Design and Research Institute, Shenyang 110011, China;

2.No. 1 Military Representative Office, the Air Force Equipment Department in Shenyang, Shenyang 110031, China

Abstract: To realize the goal of equipping the ARJ21 aircraft with a domestic high bypass ratio turbofan engine, the aero-engine overall performance simulation software GasTurb is adopted. Based on the conventional separate-exhaust high bypass ratio turbofan engine and the mature core engine of the CF34-10A, a derivative scheme design is carried out by comprehensively considering the takeoff thrust retention capacity, cruise fuel consumption rate, exhaust temperature margin and other indicators. Meanwhile, the performance of the aero-engine under takeoff, high-altitude cruise and climbing conditions is analyzed. The results show that when the designed engine adopts the compression configuration of a single-stage fan, 4-stage booster and 9-stage high-pressure compressor, the optimal bypass ratio is 4.45 and the overall pressure ratio is 26.3, with the turbine inlet temperature reaching 1 652 K under high-temperature takeoff conditions. Compared with the CF34-10A engine, the cruise specific fuel consumption of the designed engine increases by approximately 4.3%. It is verified that the designed scheme meets the technical requirements in terms of thrust, turbine inlet temperature and fuel economy, and possesses favorable engineering feasibility.

Keywords: ARJ21 aircraft; high-bypass ratio engine; cruise; fuel consumption; performance