Reliability prediction and failure mode effectand criticality analysis fmeca of avionics system

Abstract

newline The modern aerospace and aviation field applies digital systems with critical newlinecontrol and computation. These systems are required to be available and survive in all newlineenvironmental conditions of flying. To pilot an aircraft in bad weather, pilots rely on newlinethe data displayed on the Displays screen. The pilot also depends on the reliability of newlinethe systems that their commands are correctly and promptly transmitted to the aircraft newlinesubsystems. The advances of electronic hardware, especially microprocessors, enable newlinesophisticated and sophisticated software at a high level of autonomous systems. newlineTherefore, modern military systems are having a high level of dependence on the newlinecorrect working of software and hardware, their quality and reliability greatly affect the newlineusability and durability of the system. The reliability assessment of avionics system is newlinea requirement for use in Military applications. It is a way to reduce plant costs where newlinerepair of faulty subsystem or components is unproductive overhead. Avionic Systems newlinesurvivability and availability to achieve goals of mission accomplishment, safe newlinecompletion of the mission and to avoid any termination of the mission are very critical. newlineEffect of Failure Mode and its Criticality Analysis is an important requirement for the newlinedesign of the avionics system and FMECA is a tool for reliability prediction. As a result, newlinedesign of avionics system is a challenging and emerging area for avionic system newlinedesigners. For performing reliability assessment, FMECA is need of hour to newlinesubstantiate design. In the present work, FMECA has been implemented to have a newlineReliable, Available, and Survivable design. newlineThis thesis focuses work on reliability prediction, improving availability and newlinesurvivability and FMECA of state-of-the-art critical avionic systems because of their newlinepotential applications in defense services. Avionics systems provide requisite newlineinformation to reduce the workload of the pilot in the modern aircraft. newlineChapter 1 briefly describes the modern avionics systems. These system