Adjustment rule of fuel supply and fault analysis of turbofan engine starting on plateau
This paper analyzed the starting tests of a turbofan engine on plateau.The characteristics of starting on plateau and the adjustment rule of starting fuel supply were summarized and analyzed.Several typical cases of stall and thermal suspen-sion failure in the engine starting process were analyzed,and the reasons were obtained.The conclusions were as follows:the failure of cold starting on plateau was mainly caused by engine stall after the starter disengages;the failure of hot starting on plateau was mainly caused by high resistance of low-pressure rotor and thermal suspension.The adjustment rule of starting fuel supply was reducing fuel supply in the second stage and increasing fuel supply in the third stage.Suggestions were put forward to improve the success rate of starting on plateau.This study can provide reference for the use of turbofan engine on plateau.
turbofan engine starting on plateaufuel supplystall
NETL
NSTL
万方数据
维普
