《航空專(zhuān)業(yè)英語(yǔ)》課件AMM閱讀（32章）

1、深航機(jī)務(wù)培訓(xùn)中心民航維修專(zhuān)業(yè)英語(yǔ)32 LANDING GEAR制作人：鄭得如審核人：孔玲紅課件版權(quán)歸深航機(jī)務(wù)培訓(xùn)中心所有PASSAGE Q：What does the L/G system consist of ? Whats its function? LANDING GEARExtension and Retraction System Wheels and Braking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning Sy

2、stemLANDING GEARExtension and Retraction System Wheels and Braking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning SystemWhats the component of the MLG? Where does the MLG retract to stow? How many doors are there in each MLG bay? Which can

3、be opened on the ground?QUESTIONSWhats the component of the MLG? oleo-pneumatic shock absorber side stay assembly lock stay doorsWhere does the MLG retract to stow? MLG bayHow many doors are there in each MLG bay? Which can be opened on the ground?Three. The main door.LANDING GEARExtension and Retra

4、ction System Wheels and Braking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning SystemWhats the component of the NLG? Where does the NLG retract to stow? How many doors are there in each NLG bay? Which can be opened on the ground?QUESTIONSWh

5、ats the component of the NLG? oleo-pneumatic shock absorber a two-piece drag strut assembly lock stay steering mechanism doorsWhere does the NLG retract to stow? It retracts forward into a bay in the fuselage.How many doors are there in each NLG bay? Which can be opened on the ground?Four. The forwa

6、rd doors.LANDING GEARExtension and Retraction System Wheels and Braking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning System Q: How many kinds are included in the extension and retraction system? （P161） Normal Extension and Retraction Free

7、 Fall Extension Which controls the normal extension and retraction? LUCIU. Which feed back the position data? Position sensors. Does the two LGCIU work at the same time? No.Normal Extension and Retraction Which controls is free fall extension system? Where does it connect to? Which extends the L/G?

8、Does it have hydraulic supply? Under what conditions will this system be reset?Free Fall ExtensionLANDING GEARExtension and Retraction System Wheels and Braking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning System Q： How many kinds of brak

9、ing system? Normal Braking System1Alternate Braking System32Parking Brake System33Function:Controlled by _Receives hydraulic pressure from _Includes _ protectionHas _ modes of operations automatic: selection of P/BSW manual: movement of brake pedalNormal Braking System1Alternate Braking SystemWith a

10、nti-skidSecondary electro-hydraulic braking system Automatically available Made only at the brake pedals through a low pressure hydraulic system Yellow hydraulic systemWithout anti-skid Secondary mode of operation of alternate braking systemMade only at the brake pedalUsually used when aircraft is t

11、owed with electrical powerYellow hydraulic system or accumulators Function：Receives power from _When this system is in use, all other brakingsystems are hydraulically isolated.Parking Brake System33Includes a temperature sensorSends data to BTMUShown on the wheel page of the ECAM SDBITE4Brake Temper

12、ature System5Decreases the temperature of the brakesUsually used on the groundIncludes a P/BSW and an fan in each MLG wheelHas hot light and on lightBrake Cooling System6TPIS7Includes a sensor and a TPISTPIS controls and monitors and sends dataLANDING GEARExtension and Retraction System Wheels and B

13、raking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning SystemControlled by _Function:Its function is achieved by _Uses hydraulic power from _ supply the steering input two handwheel transmitters supply the primary steering inputs rudder peda

14、ls and autopilot supply the secondary inputsLANDING GEARExtension and Retraction System Wheels and Braking System NLG Steering System A NLG and Related Door Two MLGs and Related DoorsCONTENT Indication and Warning SystemThe position and warning system has two parts:Indicating and warningHas proximit

15、y sensorsGives position data to LGCIUL/G BITEEach LGCIU contains BITESupplies data to CFDS The LGCIU makes the selections of the valve assembly to retract or extend the L/G and move the doors in a given sequence. in a given sequence 按照特定的順序Useful Expressions The input signals from the brake pedals a

16、re proportional to the amount of pedal travel and supply braking independently to each MLG . be proportional to 與成比例 in proportion to深 航 維 修 你 來(lái) 傳 承 主起落架和艙門(mén)系統(tǒng)部件主起落架減震支柱1.功能主起落架減震支柱吸收著陸力并將垂直載荷傳遞到飛機(jī)結(jié)構(gòu)。2.基本工作原理油氣式減震支柱主要利用氣體的壓縮變形吸收撞擊動(dòng)能，利用油液高速流過(guò)節(jié)流小孔的摩擦消耗能量。 主起落架和艙門(mén)系統(tǒng)部件主起落架減震支柱1.功能主起落架減震支柱吸收著陸力并將垂直載荷傳遞到飛機(jī)

17、結(jié)構(gòu)。2.基本工作原理油氣式減震支柱主要利用氣體的壓縮變形吸收撞擊動(dòng)能，利用油液高速流過(guò)節(jié)流小孔的摩擦消耗能量。主起落架阻力桿功能：在前和后方向上起穩(wěn)定起落架的作用。主起落架側(cè)撐桿功能：提供減震支柱的的橫向（側(cè)向）支撐。主起落架反作用連桿功能：將作用在起落架上的大部分側(cè)向載荷傳遞到減震支柱上端。主起落架防扭臂功能：防止減震支柱內(nèi)外筒之間的相對(duì)運(yùn)動(dòng)。 前起落架和艙門(mén)系統(tǒng)部件前起落架阻力桿1.功能與前起落架鎖機(jī)構(gòu)相連的阻力桿用于保持前起落架愛(ài)收上或放下鎖定位置上。（其他結(jié)構(gòu)部件功能與主起落架的相似） 起落架收放系統(tǒng)部件手柄組件1.位置起落架控制手柄在位于駕駛艙內(nèi)的P2中央前面板上。2.功能起落架控制手柄組件通過(guò)起落架控制鋼索操縱起落架選擇活門(mén)，進(jìn)行起落架的液壓收、放操縱。選擇活門(mén)1.位置選擇活門(mén)位于主起落架輪艙的頂板上。2.功能起落架選擇活門(mén)控制來(lái)自轉(zhuǎn)換活門(mén)的液壓壓力流向主起落架和前起落架的收放管路。3.基本工作原理起落架控制手柄通過(guò)連接到選擇活門(mén)控制桿上的控制鋼索來(lái)控制選擇活門(mén)的位置。轉(zhuǎn)換活門(mén)1.位置起