航空工程英语基础doc.docx

1、航空工程英语基础docESSENTIAL（基础） ENGLISH OFAERONAUTICAL ENGINEERING航 空 工 程 英 语 基 础LESSON 1 THE B737 FUSELAGE机体一、生词飞机Airplane半硬壳式Semi-monocoque机身Fuselage起落架Landing gear动力装置Power plant支柱Strut分为Divide into包括Contain天线Antenna玻璃纤维Fiberglass蜂窝状物Honeycomb整流罩Fairing铰链Hinge压力密封隔板Bulkhead驾驶舱flight compartment进口Entry机上

2、厨房Galley登机梯Airstair电子设备舱Electronic equipment bay检修口Access door旅客舱Passenger cabin货舱Cargo逃逸Escape舱口Hatch空间Space燃油箱Fuel tank终止Terminate辅助动力装置Auxiliary power unit水平安定面Horizontal stabilizer桁架Truss排出Exhaust设计Design和一样The same as伸长stretch延伸Extension脊鳍Dorsal fin增强Strengthen相对于relative to 滑轨Skid结构structure修改

3、revise二、TEXT(1)the B737 is a low wing airplane. B737 has semi-monocoque fuselage and fully retractable landing gear. Two power plants are located under the wings on short struts.波音737是一种下单翼飞机。它拥有半硬壳式机身和全收式起落架。两台发动机位于机翼下方短支架上。(2)The 737-300 fuselage is divided into four sections: section 41 , section

4、 43 , section 46 and section 48 .波音737机体为为四部分：41、43、46和48.(3)Section 41 contains the radar antenna behind a fiberglass honeycomb fairing, hinged at the top. aft of the pressure bulkhead, above the floor, are the flight compartment and forward air stair and its door, and the electronic equipment bay

5、.this section has two lower access doors.41部分包括铰接在蜂窝状玻璃纤维雷达罩后面顶部的雷达天线、压力隔板后方及地板上方区域是驾驶舱和前登机梯及其门，还有电子设备舱。这部分有两个下检修口。(4)Section 43 contains the passenger cabin and the forward cargo compartment.43部分包括客舱和前货舱。(5)Section 46 contain the center and aft portion of the passenger cabin ,two over wing escape h

6、atches and aft entry and service doors. The space below the floor includes the wing center section (fuel tank), air-conditioning bays, wheel well, hydraulic bay and aft cargo compartment. this section terminates at the aft pressure bulkhead.46部分包括客舱中后部，两个逃生舱及入口和服务门。地板下的空间包括中央油箱、空调舱、轮舱、液压舱和后货舱。这部分终止于

7、后压力隔板。(6)Section 48 contains the auxiliary power unit(APU) and horizontal stabilizer truss. Access to this section is through a door on the left side. Aft of which is the APU access door and APU exhaust.48部分包括辅助动力装置和水平安定面桁架。可以通过左侧口盖接近。在它们的后面是APU检修口和APU排气口。(7)The 737-300 is the same basic design as t

8、he 737-200, with a body stretch of 104 inches, a wing tip extension of 14 inches, a horizontal tail extension of 36 inches, a larger dorsal fin and strengthened stabilizer.737-300与737-200具有相同的基本设计，机体伸长了104英寸，翼尖延伸了14英寸，水平尾翼延伸了36英寸，还多了个大的脊鳍和增强的水平尾翼。(8)The 737-400, relative to the 737-300, has body str

9、etch of 120 inches, tow additional over wing exit, tail skid, and strengthened landing gear.737-400与737-300相比较，机身伸长了120英寸，多了两个逃生出口，尾部滑轨及加强了起落架。(9)The 737-500 uses the 737-300 basic structure with a 94 inches shorter body and a revised forward and aft fairing (wing to body).737-500使用了737-300的基本结构，机身短

10、了94英寸，并且修改了前后整流罩（机翼到机体）。LESSON 2 THE PNEUMATICS SYSYTEM 增压系统一、生词目的Purpose压缩空气compressure Air 压缩空气pneumatic环境Environment阶段，相位Phase得到Obtain发动机引气Engine bleed外部的External车Cart接头Connector整流罩Cowl热的Thermal防冰Anti-icing也，此外Also提供provide饮用水Potable water液压的Hydraulic启动器Starter在之内Within正常的Normal取代Substitute满足Meet

11、需要，要求Need上部、顶部Top图形Figure绝缘Isolation活门Valve管道Duct结合、连接Join交叉、跨接crossover管理、调整govern适当的Appropriate二、TEXT(1)the purpose of the pneumatic system is to supply compressed air for a controlled temperature and pressure environment during all phases of flight and ground operation .air is obtained from engin

12、e bleeds. APU、or from an external ground cart through a connector located on the fuselage.增压系统的作用是为飞行及地面所有阶段的温度和压力控制提供压缩空气。压缩空气的来源可以是发动机引气、APU、或通过机身上的连接头与地面气源车相连供气。(2)The pneumatic system controls the temperature and the pressure of engine bleed air source. The pneumatic system provides high tempera

13、ture, high pressure air for the air conditioning .pressurization, wing and cowl thermal anti-icing .also, the pneumatic system provides pressure for the potable water system, hydraulic system and engine starters. The engine bleed air systems are located on the engine and within the support strut.增压引

14、气控制发动机引气的温度和压力。增压系统为空调、增压系统、机翼及整流罩热防冰系统提供高温、高压引气。同时，增压系统还给饮用水系统、液压系统和发动机起动系统提供压力。发动机引气系统位于支架内部发动机上。(3)The normal cabin air source is obtained from the 5th-stage of the engines at low engine power, 9th-stage air automatically substitutes to meet user system needs.正常情况下，客舱空气来自于发动机低能量的第5级，9级空气自动分配以满足用户

15、系统的需要。(4)On the top of figure 2-1, the isolation valve separates the left and right halves of the system. On the left side of the isolation valve, the APU bleed air duct joins the left side crossover duct; on the right side ,the pneumatic ground service connector joins the right side crossover duct.

16、 From these ducts the user system are supplied with pressurized air ,governed by the appropriate control valves.在图2-1的上方，隔离活门将左右系统分隔成独立的两部分。在隔离活门的左边，APU引气管道立连接着左交输管道；在右边，压缩空气地面接头连接右交输管道。用户系统可以从这些管道获得压缩空气，通过适当的控制活门进行控制。LESSON 3 AIR CONDINTION空调系统一、单词空气调节Air conditioning 环境Ambient机组Crew加热heat冷却Cool增压P

17、ressurization引出，放出Bled总管道Manifold分离Separate独立的Independent冷却组件Cooling pack调节，管理regulate暖，热Worm减少Reduce期望Desire涡轮冷却器Air cycle machine整的Integral包括Consist of 共同的Common轴Shaft离开Leave膨胀VExpand膨胀NExpansion下降Drop零下Sub-zero分配Distribute此外In addition配平空气管道Trim air line混合Mix室、容器Chamber加上，增加Add头顶上Overhead竖管Raise收

18、集器Collector防护罩Shroud过滤器Filter排出口Discharge再分配Redistribute二等分halve二、TEXT(1)the air conditioning system provides a conditioned air environment for the passengers and crew , heats the cargo compartment, cools the electronic equipment, and supplies air for the pressurization system.空调系统为旅客和机组提供环境温度的控制，为客

19、舱供热，为电子设备舱降温，还有为增压系统提供空气。(2)Air is bled from the pneumatic manifold and conditioned by 2 separate and independent cooling packs. Air flow into the packs is regulated by the pack valves. 空气从增压主管道和空调中通过2个隔离的，相互独立的冷却组件中被引入。空气流进组件中通过组件活门调节。(3)Air from the pneumatic manifold is too warm and must be coole

20、d. The pupose of 2 packs is to reduce engine bleed air temperature to the desired temperature.从增压主管道中来的空气太热，需要降温。两个组件的作用就是将发动机引气温度降低到需要的温度。(4)An air cycle machine is an integral unit of each cooling pack. The air cycle machine consists of a turbine wheel and a compressor wheel mounted on a common sh

21、aft. Air flowing through the air cycle machine drives the turbine, the turbine drives the compressor section. As the air leaves the turbine it expands greatly. This expansion can cause the temperature of the air to drop to sub-zero levels.涡轮冷却器是构成每个冷却组件所必需的。它包括一个涡轮和一个压气机，安装在共同的轴上。气流通过涡轮冷却器驱动涡轮，涡轮驱动压

22、气机部分。当空气离开涡轮后急剧膨胀。这种膨胀能够导致空气温度降到零度以下的程度。(5)In figure 3-1, we can see that the conditioned air from the right pack flows into the main distribution manifold, the conditioned air from the left pack flows into the main distribution manifold and into the flight compartment. In addition, a trim air line

23、from the left mix chamber adds hot air to the flight compartment duct. The main distribution manifold supplies the passenger compartment overhead distribution system through tow sidewall risers. 在图3-1中，我们可以看出，调节空气从右组件流向主分配管道，还有调节空气从左组件流向主分配管道和进入驾驶舱。另外，从左混合舱出来的配平空气管道增加热空气给驾驶舱管道。主分配管道通过两个侧壁竖管供气给客舱顶部分配

24、系统。(6)A 3-phase fan draws air from the collector shroud through filters and discharges into the main distribution manifold for redistribution.一个三相风扇从收集器防护罩穿过过；滤器和排出口进入主分配管道，用以再分配。LESSON 4 PRESSURIZATION INTRODUCTION增压系统简介一、单词组件Pack控制Control座舱高度Cabin altitude外流阀Outflow valve保持Maintain尽可能的As as possib

25、le目的地destination安全的Safe舒适的Comfortable曲线Curve对时间的Against time起飞Takeoff巡航Cruise虚线Dotted line实线Solid line爬升Ascend下降Descent近Near环境ambient减小decrease变化率rate确定、决定Determine大气Atmosphere例子Example磅/英寸Psi=pound per square inch参照By referring图表Chart描绘Depict与的关系曲线versus称之为Is referred to as 制度System水银mercury毫巴Milli

26、bar相等的identical施加exert排出exhaust向机舱外outboard二、TEXT(1)the air conditioning packs supply conditioned air into pressurization system. the pressurization system controls cabin altitude by regulating air flow from the fuselage, through the outflow valve. The pressurization system maintains cabin altitude

27、as close to sea level as possible or at an altitude equal to the altitude of the flight destination, so the pressurization system provides a safe comfortable cabin altitude for the crew and passenger at all airplane altitude.空调组件为增压系统提供调节空气。增压系统通过调节机身气流控制客舱高度，通过外流阀，增压系统保持客舱高度尽可能的接近海平面或等于飞行目的地高度，这样增压

28、系统可为机组和旅客在整个飞行过程中提供一个安全舒适的客舱高度。(2)Figure 4-2 shows a curve of airplane and cabin altitude against time from take off through cruise to landing . airplane altitude is shown in dotted line. Cabin altitude is shown in solid line. The airplane starts its flight at an airport altitude near sea level, asc

29、ends, cruises, and descends to a landing airport near sea level.图4-2显示为飞机和坐舱高度在起飞、巡航及着陆阶段的时间曲线。飞机高度显示为虚线，坐舱高度显示为实线。飞机以接近海平面的机场高度开始飞行、爬升、巡航、下降和接近海平面的机场着陆。(3)Cabin altitude starts at the take off altitude. As the airplane climb, the ambient pressure decreases; the higher the altitude, the lower the pr

30、essure. The altitude inside the airplane (cabin altitude)also climbs but at a lower rate than the airplane. The pressurization system provides the pressure differential between the cabin and ambient. 客趁高度开始于起飞高度。当飞机爬升时，环境压力减小，高度越高，压力越低。飞机内部高度（坐舱高度）也以一个低于飞机的速率爬升。增压系统提供客舱与外界环境之间的压力差。(4)The airplane altitude above sea level is determined by measuring the pressure of the ambient atmosphere. For example, see figure4-3, at 30,000 feet above sea level the ambient pressure would be 4.36 psi. the cabin altitude can