Time-Limited Dispatch (TLD) can improve the reliability of aircraft dispatch and reduce operational losses caused by flight delays or cancellations. A Markov model of a typical engine control system is established for TLD analysis, a steady-state frequency formula is derived using a Continuous-Time Markov Chain (CTMC), and a system unit time cost model is constructed. Taking average safety requirements and dispatch reliability requirements as constraints, failure dispatch time as decision variables, and the system unit time cost and dispatch reliability as optimization goals, we establish the single and multiple goals of TLD analysis. An engineering application example is given to verify the effectiveness of the model by combining the simplified engine control system and the Full Authority Digital Electronic Control (FADEC) system. Examples show that the proposed method can reduce operating costs while ensuring the satisfaction of the safety and dispatch reliability requirements of the aircraft.
HAN Bing
,
LU Zhong
,
ZHANG Ziwen
,
YI Yang
,
LI Chao
. Operational cost optimization method for time-limited dispatch of engine control system[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021
, 42(9)
: 324794
-324794
.
DOI: 10.7527/S1000-6893.2020.24794
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