What is fail-safe in aircraft?
The FAA’s (2005) accepted definition is as follows: ‘fail safe is the attribute of the structure that permits it to retain its required residual strength for a period of unrepaired use after the failure or partial failure of a principal structural element’.
What is a fail-safe system?
A fail safe system is one which, due to the characteristics of its equipment and components and the way in which they are integrated, is guaranteed that, in the event of any fault appearing, the system will always go to a safe status, normally affecting availability but never, and in no case, affecting safety.
What is an example of a fail-safe device?
Electronic fail-safe devices can include fuses, circuit breakers, or current limiting circuits, which interrupt electrical currents under overload conditions. As a result, they prevent damage to wiring or circuit devices.
What is fail-safe and safe life?
The structural lives of aircraft are generally defined by using one of three approaches: safe-life, fail-safe and damage-tolerant. the safe-life approach, aims to retire a component from service before the formation of a fatigue crack by using safety factors calculated from crack initiation data.
Is normally open fail-safe?
Normally-Closed Valves, Normally-Open Valves, and Valves that can be Converted between Normally-Open and Normally-Closed. Actuated or automatic valves that revert to a pre-determined position after the actuating force is removed are referred to as “fail-safe” valves.
What is another word for fail-safe?
In this page you can discover 15 synonyms, antonyms, idiomatic expressions, and related words for fail-safe, like: safeguarding, safety, foolproof, trouble-free, , guaranteed, protective, reliable, thrive, firewall and fail-over.
What is fail safe and safe life?
What is fail safe design and why does it matter?
Fail-safe designs are designs that incorporate various techniques to mitigate losses due to system or component failures. The design assumption is that failure will eventually occur but when it does the device, system or process will fail in a safe manner.
What is safe life in aircraft?
In safe-life design, products are intended to be removed from service at a specific design life. Safe-life is particularly relevant to simple metal aircraft, where airframe components are subjected to alternating loads over the lifetime of the aircraft which makes them susceptible to metal fatigue.