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Modeling the impact of surface emissivity on the military utility of attack aircraft
Swedish Defence University, Department of Military Studies, Military-Technology Division. National Defence University, P.O. Box 7, FI-00861 Helsinki, Finland.
2017 (English)In: Aerospace Science and Technology, ISSN 1270-9638, E-ISSN 1626-3219, Vol. 65, p. 133-140Article in journal (Refereed) Published
Abstract [en]

An analysis scheme and a mission system model were applied to the evaluation of the military utility of efforts to reduce infrared signature in the conceptual design of survivable aircraft. The purpose is twofold: Firstly, to contribute to the development of a methodological framework for assessing the military utility of spectral design, and secondly to assess the threat from advances in LWIR sensors and their use in surface-to-air-missile systems. The modeling was specifically applied to the problem of linking the emissivity of aircraft coatings to mission accomplishment. The overall results indicate that the analysis scheme and mission system model applied are feasible for assessing the military utility of spectral design and for supporting decision-making in the concept phase. The analysis of different strike options suggests that LWIR sensors will enhance the military utility of low emissive paint, at least for missions executed in clear weather conditions. Furthermore, results corroborate and further clarify the importance of including earthshine when modeling.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 65, p. 133-140
Keyword [en]
Military utility, Spectral design, Emissivity, Earthshine, Combat aircraft
National Category
Other Engineering and Technologies not elsewhere specified
Research subject
Militärteknik
Identifiers
URN: urn:nbn:se:fhs:diva-6726DOI: 10.1016/j.ast.2017.02.017ISI: 000398869500013OAI: oai:DiVA.org:fhs-6726DiVA, id: diva2:1107994
Available from: 2017-06-12 Created: 2017-06-12 Last updated: 2018-03-21Bibliographically approved
In thesis
1. On the Military Utility of Spectral Design in Signature Management: a Systems Approach
Open this publication in new window or tab >>On the Military Utility of Spectral Design in Signature Management: a Systems Approach
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

There is an ongoing duel between military sensor development and developments in signature management. The last decade, with warfare characterized by joint expeditionary operations and asymmetry, has favored sensors. However, on account of the worsening security situation in Europe, there is now also an increasing interest in efforts to increase survivability of own military platforms. Spectral design is one of several promising technologies with extensive research potentially suitable for Low Observable platforms. It involves creating desired spectral optical responses from surfaces, in this case reducing contrast to background, by choosing suitable materials and structures. The challenge to a military decision-maker, faced with inherent uncertainties concerning the future and with limited resources, is how to choose among alternative capabilities, technologies or equipment. Correspondingly, on account of the system character of the signature attribute, researchers in technologies for signature management has difficulties communicating relevant basis for these decisions. The scope of this thesis is therefore to find and analyze patterns in decision situations involving technology or technical systems for military use, and the purpose is to propose conceptual and methodological contributions to support future decisionmaking. The technology focus is on spectral design and the application in focus is signature management of Low Observable military platforms. The research objective is addressed from a military system and capability centric perspective using methods from several disciplines in the military sciences domain. The result is synthesized from four separate studies: 1) on spectral design using systematic review of literature, 2) on military utility using a concept formation method, 3) on modeling for how to operationalize a link between spectral design and measures of military utility using methods of military operations research, and, 4) on cases of systems engineering of military Low Observable platform designs. In summary, the result of the work presented in this thesis is a compilation of related work in military sciences, systems engineering and material optics into a framework to support effective decision-making in relevant contexts. The major contribution to theory is a proposed concept called Military Utility, capturing how to communicate the utility of technical systems, or technology, in a military context. It is a compound measure of Military Effectiveness, Military Suitability and Affordability. Other contributions can be expected to support decision-making in practice; - the so-called Ladder-model is a template for how to quantitatively operationalize the military effectiveness dimension of Military Utility regarding the use of spectral design; - an applied Ladder-model is demonstrated, useful for analyzing the military utility of spectral designs in Low Observable attack aircraft; - a probabilistic framework for survivability assessments is adopted into a methodology for doing the analysis, and lastly; - a generic workflow is identified, from relevant development programs, including decision-situations that can benefit from the adopted methodology.

Place, publisher, year, edition, pages
Helsinki: National Defence University of Finland, 2018. p. 185
Series
Series 1: Research Publications No. 21, ISSN 2343-0001 ; 21
Keyword
military utility, survivability, signature management, systems engineering, camouflage, Low Observable Technology, spectral design, multi-spectral
National Category
Other Engineering and Technologies not elsewhere specified
Research subject
Militärteknik
Identifiers
urn:nbn:se:fhs:diva-7349 (URN)9789512529995 (ISBN)9789512529988 (ISBN)
Public defence
2018-04-13, Sverigesalen, Försvarshögskolan, Drottning Kristinas väg 37, Stockholm, 13:00 (English)
Opponent
Supervisors
Available from: 2018-03-21 Created: 2018-03-20 Last updated: 2018-03-21Bibliographically approved

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