《航空專業(yè)英語》課件AMM閱讀（22章）

1、深航機務(wù)培訓中心民航維修專業(yè)英語ATA22 Auto Flight制作人：陳夢穎審核人：孔玲紅課件版權(quán)歸深航機務(wù)培訓中心所有Structure of the Passage Power Supply Interface Operation System Description GeneralCONTENT Component DescriptionQ1.What sub-systems does the auto-flight system contain?Q2.What functions does FMGS perform?Q3.What functions does FAC perfor

2、m? Q4：How many computers does the AFS include?QUESTIONS Auto-Flight SystemFMGSAutopilot -APFlight Director-FDAutothrust-A/THRFACYaw damperRudder travel limitingMonitoring of the flight envelope and computations of maneuvering speedYaw pilot order using power loops of yaw damper and rudder trim FAC1:

3、BITE function of the AFS System DiscriptionArchitechture of the AFSFACFMGSControls and Indicatingautopilot function autothrust fuctioncontrolsIndicating and Warningssends commandsELAC1&2 pitch &rollFAC1&2 yaw commandsECU1&EEC1ECU2&EEC2 There are no servo actuators for the autopilot and the autothrus

4、t functions.servo actuator:伺服作動筒There be 句型Useful ExpressionsInterfaceStructureInterconnection with Engine ControlsInterconnection with Flight ControlsInterconnection with PeripheralsFMGC- PITCH AND ROLL AXIS(ELACS) YAW AXIS(FACS)FAC-servo actuators and electrical actuatorsInterfaceQ1.What does the

5、interconnection between the FACs the FMGCs and the peripherals do?Q2.Where do FMGC1&2 send autopilot orders to?Q3.Where do FACs send yaw damper orders to?QUESTIONSpitch and roll axisFMGC1&2AUTOPILOT ordersELACsYaw axisFMGC1&2AUTOPILOT ordersFACSFACsYAW DAMPER commandstwo hydraulic servo actuators(on

6、e per FAC)FACscommands for rudder trim and rudder travel limitingfour electrical actuators To consolidate engine data, the priority FMGC compares the output parameters from the FCU with its own available data by means of associated logic.Consolidate 加固，這里應該是指整合compare with 與相比較by means of 以方式Useful

7、ExpressionsFACCONTENT Rudder Trim Rudder Travel LimitationMonitoring of Flight Envelope and Computation of Maneuvering Speed Yaw DamperGeneral Bite Function of the SystemFMGSCONTENT Flight Director AutothrustFlight Mode Annuciator Autopilot General Flight Management SystemGeneral FAC functionyaw dam

8、perrudder trim rudder travel limitingOperating Principlesdual-dual system for yaw damper, rudder trim and rudder travel functions.FAC1 &2 can be engaged at the same timeonly one is active at a timeFAC1 firstFAC2 standby and synchronized on FAC1 ordersan automatic changeover occurs on FAC2 in case of

9、 disengagement or Failure of FAC1FMGC 1 &Capt PFD normally use data from FAC1FMGC2 & F/O PFD normally use data from FAC2 Only one system is active at a time:FAC1 has priority, FAC2 being in standby and synchronized on FAC1 orders.priority 優(yōu)先權(quán)standby 備用、替補synchronize 使同時、同步 同步發(fā)生Yaw Dampermanual yaw s

10、tabilizationBy ELACsto rudder surface via the servo loop of the yaw damper (FAC)alternate law for Dutch roll dampingwhen ELACs no longer computes normal yaw stabilizationDutch roll dampingincluding turn coordinationwhen autopilot engaed in cruise onlyengine failure recovery when autopilot engagedFMG

11、SCONTENT Flight Director AutothrustFlight Mode Annuciator Autopilot General Flight Management SystemFMGSFMGSAPFDA/THROperating Principlesdual-dual system for AP and A/THR functionsAP only one can be engaged in cruise mode.both can be engaged when ILS mode is selected.AP1 has prtority, AP2 standby.A/

12、THRboth are always engaged at the same time but only one is active.FDactive when the electrical network is energized.FMGC1 drives FD symbols on CAPT PFDFMGC2 drives FD symbols on F/O PFDone FMGC fails, the other drives FD symbols on both PFDsFMGCs normally in dual mode on the master/slave conceptBot

13、h FMGCs perform the same functions at the same time and use the same crew inputs on MCDU1 or MCDU2If dual mode fails both FMGCs independent mode( each FMGC controls MCDU of its own side)One FMGC fails, the other take control of MCDU1 and 2 independently.All FM functions available through MCDU1 or 2.

14、 The slave system synchronizes on the master system for the initialization of the fight planning or for the modification and sequencing or for the performance modes or for the guidance modes or for the radio navigation.initialization 初始化、起始、恢復初值modification 更改sequencing 程序化、順序APmodes :cruise mode/ T

15、OGA modeOperational Usemanual control reference parameters selected on FCUauto control FM defines reference parametersA/THRmodes:SpeedMachThrustRetardFMSDefinition of the flight plan (lateral and vertical)Lateral Navigationinitialization of ADIRSDetermination of the aircraft positionfollow-up of the flight plan selection of navaids(manual or automatic)Performance,computation and vertical navigationcalculation of optimum speed and of the characteristi