Basic Analytics of Anti-Failure Avionics

Basic Analytics of Anti-Failure Avionics

Hanna Polozhevets (National Aviation University, Ukraine), Sergiy Derets (National Aviation University, Ukraine) and Bogdan Chebukin (Vilnius Gediminas Technical University, Lithuania)
DOI: 10.4018/978-1-7998-1415-3.ch017
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The chapter analyzes anti-crash avionics. Classifications are given for complex failures of avionics and onboard aviation equipment. The technological failure of the voice informant in an aircraft crash is investigated using process analysis. New technologies to reduce the risks in the elimination of functional failures of avionics are proposed. Considered are the first “computer” accidents and incidents, as well as the causes of errors. Authors present the chronology of the definition of the category of “failure” of radio-electronic equipment and onboard aviation equipment. The complexity of avionics is estimated using process analysis. The methodology of the analysis of technological processes of flights is proposed.
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Chronology Of The Definitions Of The Category “Failure” Of Radio-Electronic Equipment And On-Board Aviation Equipment

The first scientific definitions of the category’s “failures” appeared in the 70s of the twentieth century when creating the fundamentals of operating electronic equipment. “Failure” means a one-time self-eliminating refuse, the duration of which is short compared with the duration of work until an accidental refuse. In this case, the sequence of failures following each other is called an intermittent refuse.

Failures are one of the most complex production phenomena in the practice and theory of the operation of production machines with electronic automated equipment. The problem of failures is one of the most important in the technical and ergonomic operation of avionics, especially in the context of the use of various types of maintenance and repair: status, planned regulations, etc.

Considering that the fundamentals of the theory of failure diagnosis, the theory of design, the operation of “anti-failure” electronics from the 70s of the twentieth century to the present have not actually developed. These definitions of the category of “failures” have survived to the present, and the classification of failures does not actually exist. However, recently, including the year 2019, the following theories have been developed:

  • General theory of reliability and safety in flight operations.

  • General theory of functional failures (Dianov, 2012).

Such important concepts for failure analysis are introduced: fail-safe, anti-failure equipment, uninformed failures, etc. A process analysis methodology has been developed based on the general theory of statistics for engineering purposes. This creates a broader statistical basis for protecting equipment from refuses and failures.

Key Terms in this Chapter

Functional Failures of Avionics and On-board Aviation Equipment: ?re partial failures in avionics function, leading to accidents and incidents in complicated situations in flight (weather conditions, actions of risk factors, etc.) and partially disappearing during flight operations under simpler conditions.

Technological (Systemic) Failure of Avionics: Self-propelling and self-vanishing going beyond the allowable parameters of the piloting technique of the avionics system, leading to the appearance of an unwounded position of the aircraft or the creation of complicated piloting conditions for the aircraft.

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