機(jī)電工程外文翻譯--推力矢量技術(shù)綜述-全文預(yù)覽
【正文】 5 頁 共 6 頁 current deflection, produces the side. In these kind of thrust forces vector installment, the baffle plan onairplane and so on X31, F14, F18 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 nozzleresearch, the technology also is most early maturest, already wasairplane and so on F22 uses. The axial symmetry thrust force vectornozzle research is slightly late to the dual vector nozzle, butdevelops quickly, the oneself by SU35, SU37 is used. Compared with says, axial symmetry vector nozzle pared to dualvector nozzle function more superior, the technical difficulty isbigger, therefore the present various countries research developmentalready the extension has transferred to on with emphasis the axialsymmetry vector nozzle. The flow field thrust force vector nozzle thenbecause studies late, still in the research exploration stage, topractical still had section of distances, but most has the futurethrust force vector nozzle. 三． Application of thrust vectoring technology after some tactical results. Application of the fighters thrust vectoring technology, tactical results are greatly improved, according to the United States, Russia and the experience of flight test, it is true. Fighter tactical results from the increased number of ways : (1) Take off and landing, mobility, increased security. As the take off and landing process, can 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 request to relax, not afraid of asymmetric ice, suddenly the wind, the storm39。, when the angle ofattack for 70176。s Defense Weekly in 1992 said theRussian had already surmounted F117, directly developed the modernsupersonic speed attack airplane, has bee the F22 petitor. 2 Technical classification and to airplane overall performanceinfluence Baffle The 7039。 No matter the angle ofattack 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 directioninstable, also increased the airplane agility, thus may suitablyreduce or remove the vertical stabilizer, also can substitute othersome control surfaces. This to reduces the airplane to be possible the survey to beadvantageous, also can cause the airplane the resistance to reduce,the structure reduces again. Therefore, the use thrust force vectortechnology solves the design contradictory best choice. Has permittedfor many years, country and so on America, Russia has performed themassive 中北大學(xué) 2020 屆畢業(yè)設(shè)計說明書 第 2 頁 共 6 頁 performance flight, had proven using the thrust force vectortechnology indeed can achieve prearranges goal. After in April, 1991 the Gulf War ended, the Pentagon puts out 50billion US dollars, the development is different with the F117 newstealth airplane, has used the thrust force vector technology,thereupon had has basically
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