航空发动机用树脂基复合材料应用进展与发展趋势

Application progress and development trend of resin matrix composites for aero engine

树脂基复合材料具有比强度和比模量高、疲劳性能和耐腐蚀性能好等优点,已经成为航空发动机冷端部件的应用和发展趋势。国外航空发动机用树脂基复合材料研究起步较早,已经在多型发动机的风扇叶片、风扇机匣、外涵机匣、短舱等部件得到成熟应用,并朝着结构形式更优、材料性能更好、制造成本更低、自动化程度更高的方向发展。国内树脂基复合材料发展基础良好,但与国外相比在发动机上应用比例不高,需要进一步提升设计、材料、制造、实验技术水平及工程化能力。本文重点论述国外航空发动机复合材料构件的结构、材料和工艺发展现状,分析发展趋势,从建立航空发动机用复合材料体系、加强应用研究和设计牵引、推进预研成果转化和自动化技术应用等方面提出相关建议。

Resin matrix composites have many advantages such as high specific strength and modulus,good fatigue performance,corrosion resistance,and have become the application and development trend of aero engine components under 400℃.Foreign research on resin matrix composites for aero engine started earlier,which have been applied in fan blades,fan casings,outer ducts,nacelles and other components of multi-engine,and developed towards the trend of better structure,higher material performance,lower manufacturing cost and higher automation degree.The development foundation of domestic resin matrix composites is good,but compared with foreign countries the application proportion of resin matrix composites in engines in not high.It is necessary to furthur improve the technical level of design,materials,manufacturing,experiment and engineering ability.In this paper,foreign development status was discussed in the field of structures,materials and processing methods of aero engine composite components,the development trend was analyzed and corresponding suggestions were given,from the aspects of building composites system for aero engine,strengthening application research and design guide,promoting the transformation of pre-research achievements and application of automation technology.