A Model-Based Approach to Aircraft Performance Assessment

Ohme, Per; Raab, Christian

doi:10.2514/6.2008-6873

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…DLR's Matlab tool "MAPET" (Model based Aircraft Performance Evaluation Tool) [38] is used with both simulation models and the different available ice configurations for flight performance analysis. An analysis was performed for numerous altitudes up to 20,000 ft and different aircraft masses and gave well comparable results in all cases.…”

Section: Ice-induced Limitations Of Aircraft Flight Performancementioning

confidence: 99%

Comparison of Flight Characteristics of Two Different Airplanes and Ice Configurations

Deiler

2020

Journal of Aircraft

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Section: Ice-induced Limitations Of Aircraft Flight Performancementioning

confidence: 99%

Comparison of Flight Characteristics of Two Different Airplanes and Ice Configurations

Deiler

2020

Journal of Aircraft

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“…which is equivalent to the maximum available climb rate at a given speed and altitude. DLR's Matlab tool "MAPET" (Model-based Aircraft Performance Evaluation Tool) [25] is used with both simulation models and the different available wing ice configurations for flight performance analysis. Based on trimmed flight conditions the tool evaluates several model in-and outputs and calculates the desired flight performance parameters.…”

Section: Limitations Of Aircraft Flight Performancementioning

confidence: 99%

Flight Characteristics with Different Supercooled Large Droplet Ice Configurations

Deiler¹

2021

Aeronaut. j.

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An evaluation of the effects of different ice configurations on the flight characteristics of a fixed-wing aircraft is presented. Within a joint research project of German Aerospace Center (DLR) and Brazilian aircraft manufacturer Embraer simulation models of three supercooled large droplet (SLD) ice configurations were developed for one Phenom 300 prototype. A specific flight test campaign with artificial SLD ice shapes on the aircraft was conducted to gather the relevant flight data. The simulation models for the different ice configuration were obtained by system identification, and specific results for the SLD-ice simulation models are provided. The analysis of aircraft characteristics was based on the results of these high-quality simulation models: the icing-induced changes of the flight performance characteristics evaluated by the interpretation of several parameters like thrust-to-weight ratio and specific excess power. The typical flight performance degradation was found for all ice configurations with different magnitude. The change of aircraft eigenmodes was investigated in detail by analysing the system matrix of the linearised models at a specific trim points. In addition, the diverse effects found for different ice configurations (App. C and SLD) are discussed and the change of root locus is analysed. Furthermore, ice-induced changes of the handling qualities are evaluated using numerical criteria of flying qualities standard “MIL-STD-1797 A”: no significant deterioration was found for the investigated ice configurations.

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“…Within the DLR project "MiTraPor", also a 6-DoF simulation model of a future military transport aircraft (FMTA) as a generic four engine turboprop aircraft was developed [3][4] . Aerodynamic coefficients of the aircraft were obtained from CFD-computations and validated against wind-tunnel measurements 1 .…”

Section: Coupling With Transport Aircraft Simulation Modelmentioning

confidence: 99%

“…Among the activities, the airflow around the open cargo door was computed using computational fluid dynamics (CFD) and later validated by particle image velocimetry (PIV) in the wind tunnel [1][2] . Also a simulation model of a future military transport aircraft (FMTA) as a generic four engine turboprop aircraft was developed [3][4] . Both, the flow field behind the aircraft and the FMTA simulation model were later incorporated into and combined with the cargo airdrop simulation.…”

Section: Introductionmentioning

confidence: 99%

Coupled Simulation of Cargo Airdrop from a Generic Military Transport Aircraft

Jann

2011

21st AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar

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The paper presents a cargo airdrop simulation that was developed by the German Aerospace Center (DLR), Institute of Flight Systems, for the evaluation and assessment of airdrop missions in future military transport aircraft applications. Payload extraction by parachute, gravity drop and airdrop without parachute were implemented, simulated and visualized. The cargo airdrop simulation is realized as a 2-dimensional simulation, focusing on the dynamics in the longitudinal plane. The payload simulation can be run stand-alone or coupled with the simulation of a generic military transport aircraft. The coupling allows studying the interaction between aircraft and payload and predicting the dynamic behavior of both systems during and after the drop. Although the main application is the analysis of the seconds just around the payload separation, the simulation can be continued for any time longer, e.g. until payload touchdown. In order to include pilot interaction, the coupled simulation was transferred to a real-time environment and was run on a cockpit simulator.

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A Model-Based Approach to Aircraft Performance Assessment

Cited by 7 publications

References 2 publications

Comparison of Flight Characteristics of Two Different Airplanes and Ice Configurations

Comparison of Flight Characteristics of Two Different Airplanes and Ice Configurations

Flight Characteristics with Different Supercooled Large Droplet Ice Configurations

Coupled Simulation of Cargo Airdrop from a Generic Military Transport Aircraft

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