4Kurzke J, Kurzke J. Fundamental differences between conventional and geared turbofans [C]// ASME Turbo Expo 2009:Power for Land,Sea, and Air,Florida,USA: American Society of Mechanical Engineers, 2009 : 145~153.
5Riegler C,Bichlmaier C. The geared turbofan technology-opportuni- ties,challenges and readiness status [C]//Pr~eedings of the 1st CEAS European Air and Space Conference, Berlin, Germany:The Council of the European Aerospace Societies,2007: 156.
