Modular avionics is one of the major concepts to be applied to future avionics systems with the objective of cost (LCC - Life Cycle Cost) containment and improvement of operational performance. The objectives associated with such a concept are numerous: improvement of reliability, standardization, interchangeability, interoperability, etc. To obtain these objectives it is necessary to define characteristics standards for modules (LRM - Line Replaceable Module). The definition of these standards for LRM has a direct impact on the modules and their integration. The choice of the best concept takes place through a careful study of the repercussions of each solution on all levels (racks, bays and platforms), in all the technical fields (thermal, electric, mechanical, electromagnetic protection, connectors). This article presents the results of a parametric platform/system-avionics study and more particularly the possible choices for orientation of the platform on aircraft or helicopters. The method used defines the platform constraints to be parameterized and their interactions. The effects are initially integrated in a model representative of standard missions. Thus the results, field by field, show the importance of the effects of constraints on the platform system. Finally, a process of complete dimensioning of the platform, including the functional reliability aspects leads to the synthesis. This allows both a quantitative and qualitative check of the robustness of the compromises carried out. In conclusion, the control of the platform/avionics-system compromise, by an approach of simultaneous engineering, makes it possible to justify a solution of conditioning of the modular avionics in the optics of a future system.
FASTPACK: Solutions Optimisees pour le Conditionnement de l'Avionique Modulaire Issues d'Une Etude Parametrique. Part 1: Aspects Porteur (FASTPACK: Optimized Solutions for Modular Avionics Derived from a Parametric Study. Part 1: Platform Features)
1994
11 pages
Report
Keine Angabe
Englisch
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