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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2017, Vol. 38 ›› Issue (2): 520695-520708.doi: 10.7527/S1000-6893.2016.0274

• Special Column of Aviation Guided Weapons • Previous Articles     Next Articles

Development of flight safety window in icing conditions based on complex dynamics simulation

PEI Binbin1, XU Haojun1, XUE Yuan1, LI Zhe1, LIU Dongliang2   

  1. 1. Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi'an 710038, China;
    2. Beijing Aeronautical Engineering Technology Research Center, Beijing 100076, China
  • Received:2016-08-23 Revised:2016-10-25 Online:2017-02-15 Published:2016-11-03
  • Supported by:

    National Basic Research Program of China (2015CB755800); National Natural Science Foundation of China (61374145, U1333131)

Abstract:

Studies on enhancing situational awareness of pilots in icing conditions are relatively rare. Current methods normally predict occurrence of accidents by estimating whether the safety related parameters exceed their limitations. Complex dynamics of the pilot-vehicle-icing effect model is established. Safety spectrum of a single flight condition is obtained by comparing the risk degree of the flight data through the predict time interval, and the colored risk value for the flight condition is further acquired. Safety window for flight safety in the whole manipulation can be calculated using parallel flight simulation platform. The safety windows of symmetric and asymmetric icing conditions are researched, and the disaster-causing mechanism is analyzed. Simulation results show that ice will lead to shrink of the safety flight scope, and the asymmetrical ice will lead to the uneven safety window. The proposed method can provide theoretical support for enhancement of situational awareness in different adverse events, and engineering tool for optimizing the aircraft performance for aircraft designers.

Key words: aircraft icing, situational awareness, computational flight dynamics, asymmetric icing, parallel flight simulation, safety window

CLC Number: