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Model Based Specifications in Aircraft Systems Design

Kuhn, Martin R. and Otter, Martin and Giese, Tim (2015) Model Based Specifications in Aircraft Systems Design. 11th International Modelica Conference 2015, 21.-23. Sept. 2015, Versaille, Frankreich.

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Official URL: https://www.modelica.org/events/modelica2015


Executable specifications are computer algorithms written in an appropriate specification language with the purpose of demonstrating and verifying the compliance of the input-output behaviour of the model subject to the model specifications. Similarly, requirement modelling allows the specification and testing of demands on signals which are generated by a system or the model of a system. Together, executable specifications and requirement models enable a well-defined specification of a system. While the traditional aircraft design process is based on document based specifications only, a model supported design process based on executable specifications and requirement models is thought to improve the process in terms of quality and time. In contrast to the traditional, more software oriented usage of executable specifications, we use them in a more general way also for specification of physical models and behavior. In a former publication, MathWorks based tools were mainly used. In order to have a one-tool solution which allows better coupling of the physical models to requirement blocks, we show how it can be realized with Modelica based tools and libraries, especially with the new Modelica Requirements library. For some requirements no ready to use requirement blocks were available. These were blocks for a funnel like constraint in time domain and blocks for constraints in frequency domain. The implementation of the FFT for frequency domain property monitors is non-trivial and often parameterization is implemented user-unfriendly. In the last part of the paper we present a user-friendly and numeric efficient implementation and give some overview on the implementation.

Item URL in elib:https://elib.dlr.de/99373/
Document Type:Conference or Workshop Item (Speech)
Title:Model Based Specifications in Aircraft Systems Design
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kuhn, Martin R.martin.kuhn (at) dlr.deUNSPECIFIED
Otter, MartinMartin.Otter (at) DLR.deUNSPECIFIED
Giese, Timtim.giese (at) airbus.comUNSPECIFIED
Date:September 2015
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:executable specification, requirements, aircraft system design, FFT-based requirements
Event Title:11th International Modelica Conference 2015
Event Location:Versaille, Frankreich
Event Type:international Conference
Event Dates:21.-23. Sept. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Vehicle System Dynamics
Deposited By: Kuhn, Martin
Deposited On:23 Nov 2015 16:18
Last Modified:20 Jun 2021 15:47

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