Design of advanced aviation engine is summed up with production technology

5kg left and right sides, and same nickel base alloy rotor quality is 25kg. 20 centuries 90 time, compressor of 5 class high pressure uses the machine of core of XTC76/2 of machine of ATEGG test and verify that with GE company collaboration develops the metal that outer lane enhances base the compressor rotor of composite material, satisfied the requirement of high rotate speed and high temperature, reduced dish quality, reduced production cost, improved can safeguard a gender. The carborundum fiber that MTU company studies enhances titanium radical annulus of leaf of composite material whole had completed spin test of low loop exhaustion, the plan applies his EJ200 to improve model on the compressor of high pressure of before 2 class of engine. The titanium alloy that SNECMA company also employs matrix to besmear Fu fibrous method made carborundum fiber increase base plug-in unit of link of leaf of whole of composite material compressor. IHPTET planned the 2nd phase to use technology of TMC whole Xie Huan on compressor of high pressure of machine of test and verify. The blade material of the integral leaf link that IHPTET plans test and verify of lieutenant general of the 3rd phase is the compound between γ titanium aluminous metal, rouse the titanium metal that increases for carborundum fiber base composite material, make with cohere craft, its weight has 30% of structure of beat of charging tray of groovy metal ability only. Graph firebox of bear of high fever of compose of loop of 4 whole leaf increases as what hold in esteem compares, temperature of firebox imports and exports rises significantly, especially outlet temperature rises substantially, heat release rate rises significantly, ask to also rise somewhat to firebox function at the same time, firebox weight limitation increases further, also raised taller requirement to material and refrigeration. Design of structure of flame tube of refrigeration of diverge of 1 much inclined hole and make diverge of much inclined hole cooling means had begun extensive research in abroad, it is a kind of more mature cooling means, apply extensively at flame tube of advanced motor firebox all or local. If inchoate Spey, RB162 reachs the large firebox such as Olympus593, and the firebox such as the Arriel of the 3rd acting little engine of TM company has used this means. Additionally the flame tube of GE90 engine also applied tilt the technology of refrigeration of disperse the internal heat with sudorifics of alveolus, this engine obtained comfortable boat evidence 1996. The technology of refrigeration of much inclined hole that F414 engine firebox used IHPTET technology to change, make life of its flame tube lengthened 3 times. Designs of 2 flame tube of structure of layer board refrigeration reach production layer board refrigeration is to use drill rod solder will multilayer take Kong He chamfer (or protruding stage) heat-resisting alloy piece superposition and into, the Lamilloy that the Transply that uses like company of R of British R · and American GE company use. Poriferous layer board the alveolus that from flame tube for air 2 passageways classics has the rule to distributing flows into cooling process, be in next the small chamfer that lower level board expects flows between stage of small perhaps protruding, enter lower level passageway via this alveolus on layer board again, to most lower has the rule to discharge cloth alveolus to pour out of, form gas film. Can see, poriferous layer board the amount of convection heat exchange that increased heating surface area and in-house passageway greatly. Coating of 3 heat barrier (TBC) with composite material of pottery and porcelain (CMC) structural design and make at present, pottery and porcelain is exclusive and OK what do not need refrigeration below 1370 ℃ is high temperature resistant material, among them nitrogen changes silicon not only good and intensity is the safest, use temperature can amount to 1650~1750 ℃ , a lot of countries already composite material brought into radical of pottery and porcelain national hi-tech develops a plan. 80 time use 20 centuries of foreign the car engine of structure of high temperature pottery and porcelain had undergone long-term test. Material of pottery and porcelain of this kinds of high temperature already also heated up the try out on upright component in aviation engine. Combine pottery and porcelain with metallic matrix photograph with coating form, in order to develop pottery and porcelain high temperature resistant, anti-corrosive with density low good point, this calls coating of heat barrier pottery and porcelain (TBC) . And in coating of thick pottery and porcelain (TBC) with high temperature alloy structure of metallic fiber of a kind of agglomeration is used between flame tube (flexible layer) , such structure calls compound metal / flame tube of pottery and porcelain (CMC) , it is one kind when to complete pottery and porcelain cooling structure develops transfers means. CMC technology is used at firebox of big thrust engine to still be in research, IHPTET test and verify of the 2nd phase its function, be like the CMC firebox that the graph shows 5 times, outer shroud of its flame tube is structure of layer board refrigeration, core is CMC structure. This firebox is in ATEGG the oil gas of the 2nd phase is lighter than weight is being had below the level, can bear the ability of higher temperature. Graph the crucial part that the turbine of turbine of high load capacity of CMC firebox Nextpage of test and verify of the 2nd phase makes 5 IHPTET light gas turbine engine for aviation is developed in its the place that hold the balance is had in the system, its key technology basically involves blade design and optimize, blade refrigeration and conduct heat, turbine matchs with what engine reduces a system etc. Design of 1 casting cold lamina reachs production technology " casting is cold " result from Allison company puts forward " Castcool " concept, it is a kind of treatment method that can cast an in-house and complex form, it can cast an alveolus and complex cooling passage in high temperature resistant single crystal material. 1992, when IHPTET plans the first phase to have not end, "Lamilloy " , " Castcool " in waiting for already ongoing hair. When the 2nd phases ends, guider of layer board refrigeration also is in the double blade that uses treatment of casting cold method the wear test that quickens task test-drive was passed on machine of CAESAR test and verify. Be used at ATEGG and JTDE " casting is cold " the turbine temperature target that lamina of tall, low-pressure turbine is achieved successfully and exceeded the 2nd level. In last few years, allison company uses its distinctive Lamilloy cooling technology at lamina of CMSX-4 single crystal, make turbine inlet temperature bears ability raised 222~333K. And casting is cold Lamilloy lamina is the Lamilloy with efficient union of casting cold craft the lamina of cooling plan, blade leading edge and end predestined relationship use the refrigeration that enrage film, and blade others uses Lamilloy refrigeration, cast in material of a single crystal, improved production cost greatly. 1994, allison company finished turbine to experiment on AE301X engine. 2 exceed cold lamina design to reach production technology " super- cold " call super refrigeration again, result from of PW company " Super Cooling " concept. "Exceed cold " blade has hundreds of to cast or the alveolus that laser hits. The later period of the first phase that IHPTET plans, PW company was achieved in September 1994 and exceeded target of the first phase, at the test and verify on machine of XTE65/2 test and verify " exceed cold " turbine lamina, make turbine imported temperature burning gas to raise 222K. 1992~1996 year in CAESAR plan, machine of test and verify is the engine of core of a F119 that offers by PW company, the casting that the turbine of its core machine directs blade used Allison firm is cold of Lamilloy plan and PW exceed cold plan, turbine moved Xie Ye to use exceed cold technology. Design of lamina of turbine of 3 composite material and production technology IHPTET plan the 3rd stage, GE and AADC company direct in the high-pressured turbine of machine of XTE-77 test and verify Xie Shangcai uses radical of pottery and porcelain composite material, the nickel with the model base exceed photograph of heat-resisting alloy guide vane to compare, weight is reduced 50% , cooling air quantity decreases 20% ; Also used radical of pottery and porcelain on low-pressure turbine guide vane composite material, raise intensity and wear with three-dimensional fiber structure. Its are low density, high temperature resistant ability reduced weight greatly, reduced cooling air current. This technology already applied at the low-pressure guide vane of F136. Low pressure moves a leaf to went up to also experiment CMC does not have lamina of cooling turbine job, its susceptive temperature is apparent the takes refrigeration blade with similar prep above, density is the 1/3 of traditional lamina material, hot coefficient of expansion is traditional the 1/4 of nickel radical alloy. The prospective development that this technology plans to be used at F136 engine. Test and verify of Willians international company the carborundum of component of complete composite material - carbon rotor of composite material turbine and carbon - carbolic exhaust spray pipe, can carry high temperature is spent and reduce weight. Its turbine guider is stuck by detached guide vane and annulus receive and become, cost is low, bear lukewarm capability is high. Carborundum - rotor of composite material turbine has carbon need not cooling, high temperature resistant, weight light, cost is low characteristic. It is to a few components of engine in design of turntable of eddy of 4 pairs of spoke board and plan of production technology IHPTET on the structure made an innovation design, among them one of it is hollow turntable of pair of spoke board eddy. The IHPTET till 2003 plans the 3rd stage in, had completed structural design and relevant trial work, at present this new technology had gotten test and verify on a few engine. Graph the double spoke of the 6 designs in planning for IHPTET board eddy turntable, turntable of eddy of this pairs of spoke board is become through soldering, compare with traditional eddy turntable photograph, can reduce on weight 17% , at the same time rotate speed can rise 9% . Graph turntable of pair of 6 soldering spoke board eddy are muti_function vector of thrust of thrust vector spray pipe is to point to engine thrust not only size is alterable, and the crab that direction also can point to a plane, a simple move or action, boil turn, return the many way such as thrust, make thrust direction deflexion, produce add moment, use at complement or the pneumatic helm that replace an aircraft to face a plane to undertake controlling. Design of spray pipe of 1 binary vector and spray pipe of production technology n duality by group section and spray pipe two parts are comprised, group section the circle engine is sectional transfer the rectangle of spray pipe is sectional. Through considering to confirm, binary vector spray pipe is a kind muti_function push unit, realize thrust vector easily. Make clear as what study way to thrust vector technology, take out oppose thrust plant, improved dependability, reduced weight, the n duality that development went to have vector of thrust of a simple move or action receives one enlarge spray pipe, this kind of binary spray pipe that the tail spray pipe of F-22 of the 4th acting advanced battleplan uses the United States namely (graph 7) . Graph spray pipe of 7 binary vector (2DCD) (beautiful F119 engine) spray pipe of vector of pneumatic of spray pipe of vector of pneumatic of structure of 2 fixed geometry is a kind of advanced adoption the vector spray pipe of the fixed geometry of area of exit of area of path of larynx of vector of fluid control thrust, pneumatic, spray pipe plan, apply to with hind the design of spray pipe of low signal feature of airframe height unifinication. As a result of its geometrical structure is secured, little numerous and complex regulating system, it is one of technical ways that exhaust system realizes light, low cost. Compare with photograph of spray pipe of vector of machinery adjustment type, pneumatic vector spray pipe can reduce many athletic spare parts, the structure is simple, use metalloid composite material, weight extensively easily light; Spray pipe larynx and export sectional appearance the design is agile, easily implementation and hind the high unifinication design of airframe, be helpful for radar and infra-red concealed body; Machine easily make, it is good to can safeguard a gender, reduced weight greatly thereby, managing cost. As a result of above characteristic, spray pipe of foreign pneumatic vector already made the revolutionary technical plan that replaces spray pipe of vector of machinery adjustment type, got extensive attention and research. Last word " engine of generation new material, generation " . According to forecasting, in function of prospective aviation engine in rising, rate of new material contribution will achieve 50% above; New structure, new material decreases heavy contributive rate to will be achieved to engine with production technology 70% . "Data start off before the others, fundamental go ahead of the rest " one of fundamental objective law that already became aviation engine development. Accordingly, before in aviation engine studies beforehand and model is developed, should more the basic research that plans new material, new production technology ahead of schedule and project change applied research, build aviation engine new material of Gao Shuiping and system of advanced production technology, and to it the standard of form a complete set, standard, manual and experiment database, ability is technology of new material, new workmanship to develop medium application and development to lay solid technical foundation in advanced aviation engine. 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