The general aeroengine performance schemes with different bypass ratios (BPR) are investigated based on the core engine.With the BPR increasing, specified fuel consume (SFC) is reduced, takeoff thrust enhanced, and the total weight and the size of aeroengine are increased.On the condition of one BPR, there is an optimal BPR which minimizes the SFC.The effect of aeroengine with different BPRs on the takeoff weight of aircraft has been studied.The result shows that there is an optimal BPR which minimizes the takeoff weight;moreover, the longer the flight distance gets, the bigger the optimal BPR is.The effect of aeroengine with different BPR on the flight economy has also been studied.There is an optimal BPR which minimizes the flight cost.The optimal BPR is affected by flight distance, fuel price and the frequency of mission.
LI Rui-jun
. Analysis of effect of bypass radio on the performance and economy of transport aeroengine[J]. Journal of Shenyang Aerospace University, 2013
, 30(4)
: 12
-17
.
DOI: 10.3969/j.issn.2095-1248.2013.04.003
[1]Arvid L, Keitb Jr.A brief study of the effects of Turbofan engine bypass ratio on short-and long haul cruise aircraft [R].NASA TN D-7890, Space Administration Washington DC, 1975.
[2]P C Ruffles.The future of aircraft propulsion[R].IMechE, 2000.
[3]Paul Krammer, KlausRued, Jens Truebenbach.Technology preparation for Green Areo Engines[R].AIAA-2003-2790.
[4]N J Peacock.Engine design and systems integration for profan and high bypass turbofan engine[R].AIAA-87-1730.
[5]廉小纯, 吴虎.航空发动机原理下册[M].北京:国防工业出版社, 2001.
[6]Mark D, Guynn Douglas R.Thurman.analysis of turbofan design options for an advanced single-aisle transport aircraft[R].AIAA-2009-6942.
[7]B.A.索苏诺夫, B.M.切普金.航空发动机和动力装置的原理、计算及设计[M].莫斯科国立航空学院, 2003.
[8]顾诵芬.民用飞机总体设计[M].上海:上海交通大学出版社, 2010.
[9]Gordon C, Oates.Aircraft propulsion systems technology and design[M].Unversity of Washington Seattle:Washington, 2002.
[10]Alan Epstein.Lectures on gas turbine engines for modern commercial aircraft[M].Shanghai:Shanghai Jiaotong University Press, 2010.
[11]百度百科.CFM56发动机简介[EB/OL], [2000-01-08].http://baike.baidu.com/view/2011828.html.
