Identification and standardization of maneuvers based upon operational flight data

Abstract

To find a way of loads analysis from operational flight data for advanced aircraft, maneuver identification and standardization jobs are conducted in this paper. For thousands of sorties from one aircraft, after studying the flight attitude when performing actions, the start and end time of the maneuvers can be determined. According to those time points, various types of maneuvers during the flight are extracted in the form of multi-parameters time histories. By analyzing the numerical range and curve shape of those parameters, a characteristic data library is established to model all types of maneuvers. Based on this library, a computer procedure using pattern-recognition theory is programmed to conduct automatic maneuver identification with high accuracy. In that way, operational loads are classified according to maneuver type. For a group of identified maneuvers of the same type, after the processes of time normalization, trace shifting, as well as averaging and smoothing, the idealization standard time history of each maneuver type is established. Finally, the typical load statuses are determined successfully based on standard maneuvers. The proposed method of maneuver identification and standardization is able to derive operational loads effectively, and might be applied to monitoring loads in Individual Aircraft Tracking Program (IATP).

Defense Strategy of Aircraft Confronted with IR Guided Missile

“…The flight data has been collected from 200 sorties of an aircraft and the maneuvers are identified [13], from which 50 maneuvers have been sampled to build up the maneuver database. One data of maneuver database is chosen, such as barrel roll maneuver.…”

Development of Real-Time Maneuver Library Generation Technique for Implementing Tactical Maneuvers of Fixed-Wing Aircraft

“…Koo et al [4] studied the conditions for flight maneuver transition and the diversity of flight paths according to combinations of maneuver. Wang et al [5] proposed the flight maneuver identification method from flight test data. Moreover, they stored the data as libraries.…”

“…In (3) and 4, the target may be successfully hit by performing the various tactical maneuvers to avoid the enemy radars and surface-to-air missiles. In (5), the terrainmasking maneuvers are implemented again to exit the mission area. Therefore, aggressive maneuvers are needed in the areas of (2)-(5) [17].…”

ABC and DE Algorithms based Fuzzy Modeling of Flight Data for Speed and Fuel Computation

“…Several studies on modeling and simulation of flight control systems are included in the literature [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] . In the study by Góes et.al 18 , a comparison of two output-error methods to inverse modeling of an aircraft are presented by using the experimental flight data.…”

“…An overview of existing methods about aircraft performance monitoring from flight data is presented by Krajček et.al 22 . On the other hand, a method for identifying maneuver type from operational flight data is proposed by analyzing the flight attitude of aircraft 23 . In the study presented by Notter et.al 25 , a mathematical model for the coupled system dynamics of a multirotor unmanned aerial vehicle with heavy slung load is derived.…”