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Military utility: A proposed concept to support decision-making
Försvarshögskolan, Militärtekniska avdelningen (MTA), Stockholm, Sweden.ORCID iD: 0000-0001-6104-5788
Försvarshögskolan, Militärtekniska avdelningen (MTA), Stockholm, Sweden.
SAAB Aerosystems.
Försvarshögskolan, Militärtekniska avdelningen (MTA), Stockholm, Sweden.
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2015 (English)In: Technology in society, ISSN 0160-791X, E-ISSN 1879-3274, Vol. 43, p. 23-32Article in journal (Refereed) Published
Abstract [en]

A concept called Military Utility is proposed for the study of the use of technology in military operations. The proposed concept includes a three-level structure representing key features and their detailed components. On basic level the Military Utility of a technical system, to a military actor, in a specific context, is a compound measure of the military effectiveness, of the assessed technical system's suitability to the military capability system and of the affordability. The concept is derived through conceptual analysis and is based on related concepts used in social sciences, the military domain and Systems Engineering. It is argued that the concept has qualitative explanatory powers and can support military decision-making regarding technology in forecasts, defense planning, development, utilization and the lessons learned process. The suggested concept is expected to contribute to the development of the science of Military-Technology and to be found useful to actors related to defense.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 43, p. 23-32
Keywords [en]
Technology, utility, decision-making
National Category
Mechanical Engineering
Research subject
Systems science for defence and security
Identifiers
URN: urn:nbn:se:liu:diva-163641DOI: 10.1016/j.techsoc.2015.07.001ISI: 000215364900003OAI: oai:DiVA.org:liu-163641DiVA, id: diva2:1393780
Available from: 2020-02-17 Created: 2020-02-17 Last updated: 2020-02-17Bibliographically approved
In thesis
1. Sensor and Signature Modeling for Aircraft Conceptual Development
Open this publication in new window or tab >>Sensor and Signature Modeling for Aircraft Conceptual Development
2020 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The aircraft design process has several phases, the first of which is conceptual design. In this phase, models describing an aircraft concept’s properties are used to evaluate its function and identify designs that meet given requirements. Fighter aircraft are generally expected to be capable of communicating, delivering munitions and gathering data about their environment to gain situational awareness. The ability to avoid detection by hostile sensors can also be important, depending on the aircraft’s role.

The design process of the aircraft itself has usually focused on an aircraft’s flight performance and ability to carry loads, e.g. munitions and extra fuel. While acceleration, rate of turn, maximum speed, and operational range are important parameters, the success of military missions also depends on sensor capabilities and signature levels. However, sensor installation and signature reduction measures can affect the aircraft and its flight performance. Whether an aircraft concept fulfills the requirements given is evaluated using simulations in appropriate scenarios. The concept’s performance is assessed using models of aircraft properties, weapon properties, sensor capabilities and signature levels. Models of the aircraft properties are usually connected dynamically, and respond to changes in such things as the size of the concept. However, sensor and signature models are often the result of a separate optimization process and are only statically connected to the aircraft model. The complete aircraft model can be improved by introducing sensor and signature models that dynamically describe both their functions, and their impact on the aircraft. Concurrent design of all the aircraft properties may improve the quality of results from scenario simulations. When models used in simulations contain parameters coupled to each other, analysis of the resulting data is particularly important because that is what supports a decision-maker’s design choice.

Sensor and signature models, in some cases combined with flight performance models, have been used to test methodologies intended for use in conceptual aircraft design. The results show that even seemingly simple models can produce results that can make a significant contribution to the aircraft design process.

Abstract [sv]

Det första steget vid flygplansutveckling är konceptfasen, där alternativa förslag på flygplan representeras av modeller som beskriver det tänkta flygplanets egenskaper. Modellerna används i simuleringar som genomförs i olika scenarion, för att utvärdera och rangordna de olika flygplanskonceptens förmågor. För stridsflygplan är det viktigt att kunna manövrera och leverera vapen såväl som att skaffa och upprätthålla en situationsuppfattning. Beroende på flygplanens roll i uppdraget kan det också vara en prioritet att undgå upptäckt från fiendens sensorer.

Konceptsfasen är vanligtvis inriktad mot flygplanets prestanda och kapacitet att bära last, exempelvis extra bränsle och vapen. Förmågan att framgångsrikt genomföra ett militärt uppdrag beror på egenskaper som har att göra med svängprestanda, acceleration, topphastighet och räckvidd såväl som sensorernas egenskaper och flygplanets signaturnivå. Simuleringar av scenarion med modeller av flygplanets egenskaper, vapenprestanda, sensoregenskaper och signaturnivåer, möjliggör värdering av ett flygplanskoncepts förmåga att genomföra sitt uppdrag på ett tillfredsställande sätt. De modeller som beskriver flygegenskaperna är vanligtvis sammankopplade och ändringar i exempelvis flygplanets storlek påverkar alla modeller. Sensor- och signaturmodeller, är däremot ofta ett resultat av en separat konstruktionsprocess och inte kopplade till exempelvis flygegenskaper. Genom att införa modeller av sensorprestanda och signaturnivåer som är dynamiskt kopplade till flygplanets modeller finns det möjligheter att förbättra konceptanalysen. Resultatet ger möjligheter att få mer fullständigt resultat från simuleringarna i scenarion, vilket i sin tur ger beslutsfattare ett bättre underlag.

I den här avhandlingen presenteras modeller av sensorer och signaturnivåer, avsedda att användas vid konceptkonstruktion av flygplan. Vissa av modellerna är kopplade till modeller för flygprestanda. Resultaten visar att även till synes enkla modeller ger resultat som kan utgöra ett användbart bidrag till konstruktionsprocessen.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2020. p. 66
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 2021
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:liu:diva-163595 (URN)10.3384/diss.diva-163595 (DOI)9789179299866 (ISBN)
Public defence
2020-04-06, Nobel, B Building, Campus Valla, Linköping, 09:15 (English)
Opponent
Supervisors
Available from: 2020-02-20 Created: 2020-02-17 Last updated: 2020-03-09Bibliographically approved

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Andersson, KentBang, MartinMarcus, CarinaPersson, BjörnSturesson, PeterJensen, EvaHult, Gunnar

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