Title: Avionics Modification Research Analysis: From Electromechanical to Digital Avionics and from Digital to Integrated Modular Avionics (IMA)
Abstract: The electronic sets that are being used in aviation industry are commonly
summarized as “avionic = aviation electronic equipment”. Nearly seventy years ago
the first avionics devices used on aircraft were communication and navigation
systems based on old gauge instruments and analog systems. Since then, the
industry has evolved a lot and today the avionics systems require for new and
smarter functionalities thus driving the overall aviation research to an exponential
rate towards high grade avionics systems and architectures.
In this research project, a complete investigation has been performed regarding to
the maturity of avionics systems from different phases of the development. The
report describes in detail the methodologies and constraints related to the avionics
modification from electromechanical to digital avionics bus. In addition, the problems
regarding to the maintenance and modification of legacy aircraft has been presented
in detail.
Using the knowledge acquired in the different phases of avionics modernization, two
different top level avionics system design architectures have been developed for a
medium jet civilian aircraft with digital avionics systems involving military standard
1553B (MIL-STD-1553B) bus and Integrated Modular Avionics (IMA) e.g. ARINC 653
and ARINC 664 protocols. The top level design presents the complete avionics
architecture of the aircraft, the avionics systems used, the data communication
between different avionics systems and the complete hardware and software layout
architecture.
During the research, some military aircraft such as C-130 Hercules (American) and
IL-78 Ilyushin (Russian) were taken as the main study and reference avionics
architectures for the modification from electromechanical to digital systems. Apart
from these two models, several other aircraft such as F-22 Raptor, Boeing B777 and
Airbus A380 were taken as the study cases for the Integrated Modular Avionics (IMA)
technology
Publication Year: 2014
Publication Date: 2014-02-12
Language: en
Type: dissertation
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