機(jī)電工程外文翻譯--推力矢量技術(shù)綜述

1、<p><b>　　畢業(yè)設(shè)計(jì)中英文翻譯</b></p><p><b>　　推力矢量技術(shù)綜述</b></p><p>　　學(xué)生姓名： 學(xué)號： </p><p>　　學(xué) 院： </p><

2、p>　　專 業(yè)： </p><p>　　指導(dǎo)教師： </p><p><b>　　2011年6月</b></p><p><b>　　外文原文</b></p><p>　　

3、The summary for thrust force vector technology</p><p>　　1 Outline</p><p>　　The thrust force vector technology is refers to the motor power thethrust force component which produces through the n

4、ozzle either thetail jet deflection to substitute the original airplane the controlsurface or strengthens the airplane the operation function, carries onthe real-time control to the airplane flight the technology.To its

5、application, but also must depend upon technical the and so oncomputer, electronic technology, automatic control technology, enginemanufacture technology, materia</p><p>　　Using the thrust force vector techn

6、ology to the new design and on themodification next century military airplane, indeed is an effectivetechnical breach, it to the fighter aircraft stealth, reduces anti-,reduces weight extremely is all effective. </p&g

7、t;<p>　　The thrust force vector technology can let the motor power a part turnthe control force, replaces or partially replaces the control surface,thus greatly reduced the radar return area; No matter the angle o

8、fattack big and the flying speed is much low, the airplane all may usethis part of control force to carry on the operation, this increasedthe airplane controllability. Because directly has the control force, and size and

9、 directioninstable, also increased the airplane agility, thus may suitablyr</p><p>　　After in April, 1991 the Gulf War ended, the Pentagon puts out 50billion US dollars, the development is different with the

10、 F-117 newstealth airplane, has used the thrust force vector technology,thereupon had has basically satisfied the above many kinds of requeststhe F-22 fighter aircraft. The Russian development stealth and the thrust forc

11、e vector technologyapplied research includes, the Mig 1.44 the air current reacting forcewhich sends out to the different direction may rapidly change thedire</p><p>　　2 Technical classification and to airpl

12、ane overall performanceinfluence </p><p>　　2.1 Baffle</p><p>　　The 70's intermediate stages, German MBB Corporation's aircraftdesigner Wolfe hillock hull proposed starts the airplane tai

13、ljet using the control the direction to enhance the airplane themaneuver cabability. In 1985 the American national defense advanced research bureau and MBBCorporation have jointly conducted the feasibility study, in 1990

14、March, American Rockwell Corporation, Boeing Corporation and GermanMBB Corporation developed together in starts the airplane tail nozzleto be loaded with may</p><p>　　From November, 1993 - 1994 the year'

15、s end, has carried on a series ofsimulated air combat between X-31 and F-18, does not use the thrustforce vector technology and the F/A-18 airplane in the X-31 airplanewith to parallel starts in the airborne wrestle situ

16、ation, 16 timejoined battle to hit F-18 to win 12; But when X-31 use thrust forcevector technology 66 time joined battle X-31 to win 64. In addition, US separately installed the baffle on F-14 and F-18 tocarry on the exp

17、eriment. Generally speak</p><p>　　2.2 Dual vector nozzle</p><p>　　The dual vector nozzle is the airplane tail pipe can in deal with anddrift off course the direction deflection, enable to fly th

18、e functionin to deal with and to drift off course in the direction to produce isvertical attaches the moment of force to the axis of aircraft, thusenable the airplane to have the thrust vector control ability. Thedual ve

19、ctor nozzle usually is a rectangle, or is four may form acomplete set the rotation adjustment board. The dual vector nozzle type includes: Dual restrain</p><p>　　Axial symmetry vector nozzle</p><p

20、>　　the end of the80's, American two advanced research fighter aircrafts YF-22/F119 andYF-23/F120 have used this kind of vector nozzle. The dual vector nozzle shortcoming is the structure quite unwieldy,flows-in th

21、e characteristic to be worse.</p><p>　　2.3 Axial symmetry vector nozzle</p><p>　　The thrust force vector technology research concentrates at first inthe dual vector nozzle, but along with resea

22、rch thorough discoverytwo-dimensional nozzle merit although many but shortcoming also veryobvious, transplants in particular to the operating aircraft on isquite difficult. Therefore has developed the axial symmetry thru

23、st force vector nozzle.GE Corporation starts the axial symmetry thrust force vector nozzledevelopment in the 1980s intermediate stages, its development nozzlechanges th</p><p>　　2.4 Flow field thrust force

24、vector nozzle</p><p>　　The flow field thrust force vector nozzle is completely different tothe front several kind of machineries does moves the type thrust forcevector nozzle, its main characteristic lies in

25、 through (SecondaryFluid) affects the main stream in the nozzle divergent sectionintroduction lateral inferior air current the condition, achieves thechange and the control main stream area and the direction, then gainth

26、rust force vector goal. Its most main merit was saves the machinerywhich the massive implementat</p><p>　　The realization flow field thrust vector control has the many kinds ofways below, at present studies

27、has the way:</p><p>　?。?) jet thrust vector control. By the air current after the nozzledivergent section or many injections, the force main streamattaches depends on flows to on the opposite side wallsurfac

28、e, thus produces the side. （2）regurgitation thrust vector control. The tip of nozzle in exteriorto add a coat, forms the reverse mobile regurgitation cavity to say,when needs the mainstream deflection, the start pumps th

29、e system toform the negative pressure, causes the main stream deflection toproduce the side. （3</p><p>　　In these kind of thrust forces vector installment, the baffle plan onairplane and so on X-31, F-14, F-

30、18 has only made the experimentalconfirmation, explained the thrust vector control airplane haseffectiveness, the thrust force vector technology plan whichafterwards develops has not been used. The dual vector nozzlerese

31、arch, the technology also is most early maturest, already wasairplane and so on F-22 uses. The axial symmetry thrust force vectornozzle research is slightly late to the dual vect</p><p>　　三． Application of t

32、hrust vectoring technology after some tactical results. </p><p>　　Application of the fighters thrust vectoring technology, tactical results are greatly improved, according to the United States, Russia and th

33、e experience of flight test, it is true. Fighter tactical results from the increased number of ways : </p><p>　　(1) Take off and landing, mobility, increased security. As the take off and landing process, ca

34、n be used to increase the thrust to lift, thus greatly shortening the distance roll, Using reverse thrust, then the effect more visible, it is asking to lower the airport, the aircraft use more mobile. Climate may also r

35、equest to relax, not afraid of asymmetric ice, suddenly the wind, the storm's disturbance to the aircraft, reducing damage to the landing gear of the impact relative to enhance combat e</p><p>　　(2) To e

36、nhance the penetration capability, flexibility, and the survival rate of sudden attack, This is because the reduction of radar reflectivity area and the increased mobility. This suddenly is very valuable, the United Stat

37、es Air Force aeronautical systems division commander, General John M. Tulloch said, in the past were shot down pilots are 80% did not see who opened fire on them by. The increase in the survival rate of the pilot's c

38、onfidence, but also a corresponding reduction in aircraf</p><p>　　(3) An increased range, increased by attacking or defensive scope. The use of thrust vectoring technology due to the rudder area after the re

39、duction will reduce the resistance, fuel consumption decreased, the corresponding range of increase, while Tail reduce the weight of aircraft could lead to a larger overall weight decreased, the corresponding increase in

40、 fuel, but also intensify the voyage. </p><p>　　(4) Improve the combat effectiveness of close fighting and open up a brand new air combat tactics. Angle of attack is mainly controlled by many, much higher th

41、an the stall angle of attack, at the tip of the strengthening of its capacity, increased opportunities for the use of weapons. And the manipulation of an increase in Agile increased. Pitching great speed to enable the ra

42、pid control of the aircraft at high angle of attack so that the nose can be stopped at the precise objectives capable of </p><p>　　(5) Improving the performance of air-to-ground attacks. hit rate has increas

43、ed, after the bombings to avoid more agile movements. 推力矢量技術(shù)綜述</p><p><b>　　一.概述</b></p><p>　　推力矢量技術(shù)是指發(fā)動機(jī)推力通過噴管或尾噴流的偏轉(zhuǎn)產(chǎn)生的推力分量來替代原飛機(jī)的操縱面或增強(qiáng)飛機(jī)的操縱功能，對飛機(jī)的飛行進(jìn)行實(shí)時控制的技術(shù)。對它的應(yīng)用，還得依靠計(jì)算機(jī)、電子技術(shù)、自動

44、控制技術(shù)、發(fā)動機(jī)制造技術(shù)、材料和工藝等技術(shù)的一體化發(fā)展。 利用推力矢量技術(shù)到新設(shè)計(jì)和改型的下一世紀(jì)軍用飛機(jī)上，的確是一個有效的技術(shù)突破口，它對戰(zhàn)斗機(jī)的隱身、減阻，減重都十分有效。 推力矢量技術(shù)能讓發(fā)動機(jī)推力的一部分變成操縱力，代替或部分代替操縱面，從而大大減少了雷達(dá)反射面積；不管迎角多大和飛行速度多低，飛機(jī)都可利用這部分操縱力進(jìn)行操縱，這就增加了飛機(jī)的可操縱性。由于直接產(chǎn)生操縱力，并且量值和方向易變，也就增加了飛機(jī)的