齿轮驱动涡扇发动机结构设计特点分析

摘要

随着齿轮驱动涡扇（GTF）发动机进入航线运营日期的临近，业界对这种新型航空发动机的关注度逐渐提高。简要分析了GTF发动机相对于传统涡扇发动机在总体结构、低压部件和滑油系统设计等方面的新特点，指出了增加减速齿轮箱对低压分离式转子设计、低压转子支承和传力路线设计、高速低压涡轮设计和狭小空间润滑等技术的挑战。%Geared turbofan engine （GTF） are increasingly paid attention by the aviation industry as it will entry into service no longer. The new design features about overall structure, low pressure components and oil system were briefly analyzed for GTF comparing to convetional turbofan engine. The technical challengenee were pionted out for LP split rotor design, LP rotor support and load design, high speed LP design and compact oil system