fiabilité du circuit hydraulique

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RELIABILITY
aircraft must be contollable after :
-a double failure
-an engine bursting
-engines stops
-an engine bursting+damages in neighbouring+single failure. likelihood approach is accepted.
consequences:
-3 independent power distribution circuits
-segregation of installation
-standby generation
-electro pumps installation; (proba of 1 system failure + 1 engine bursting leading to loose all 3 power circuits<10e-9)
minimize the effects of failures :
-accumulator or moving parts
-tyre burst
-in flight collision
-tyre tread or boulders throwing on ground
-sprays on passengers
consequences:
-reliable accumulators placed in low risk areas
-motors or pumps self containing
-explosion proof of electropumps
-segregation, bucklers, avoidance areas above gear up location, fuses(rudder, aisle ends)
-structure protection for wiring
-installation design
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