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EMERGEN
CYCONTRO
LUNICORN(MTLAVELA)–STEERINGGEARCHANGEOVER
UNICORN(MTLAVELA)–EMERGENCYCONTROL
UNICORN(MTLAVELA)RUDDERINDICATORG3.2(1/1)
ROTARYVAN
ESTEERING
UNICORN(MTLAVELA)-ROTARYVANESTEERINGGEAR
UNICORN(MTLAVELA)-ROTARYVANESTEERINGGEAR
SWIRE(EXPLORERDOLPHIN)–STEERINGGEARG3.9(3/3)
CASESTUDY
CASESTUDYReadtheAmocoCadizcasestudy,andusetheinforma\ontoanswerthefollowingques\ons……
(1)Whattypeofhydraulicsystemwasdevelopedbecauseofthis?
Duplicatehydrauliccircuitsfor4-ramorvane-typesteeringgears.
(2) Whatalarmissoundedfirstwithregardstooilloss.
Level1:Lowlevelonany1ofthetwocompartments.
(3)Whatwouldhappenwithfurtheroillossfroma4-ramsystem?
Level2switches(oneorboth)causetheservovalvestooperate,splidngthesystemsothateachpowerunitsuppliestworamsonly.Alsoanysta\onaryunitwillbestarted.
(4)Whatwouldbetheresultofs\llfurtheroilloss?
Level3switches(oneorboth)isolatepowertothefaultyside.ThesteeringCon\nuesathalfthemaximumtorque.