Of engine of 21 centuries big airlines grind beforehand plan and crucial technology

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What compete as the flying development of aviation engine technology, market is increasingly intense what ask with environmental protection is ceaseless and strict, big airlines engine faces charge lower, performance is higher as better as environmental protection character way develops. For this, changing to be mixed into the engine such as development GE90, PW4084, TRENT800 brand-new the engine such as development GP7200, TRENT900, GEnx and TRENT1000 while, the United States and home of Europe allied country become independent and / or carried out jointly a series of grind beforehand plan, development and test and verify function tall, quality light, reliability is high and discharge as low as noise tomorrow convention to circulate technology of big airlines engine, exploratory study more the technology of engine of advanced loop big airlines of economy and environmental protection, for future the development of big airlines engine laid very good technology foundation. Research of technology of big airlines engine plans the 1 United States of progress 　 that technology of engine of foreign big airlines studies to plan 20 centuries 90 time, the United States carried out economy, environmental protection, energy-saving engine (5E) plan, machine of high speed research (HSR) plan and advanced inferior technology of velocity of sound (AST) the engine of a few big airlineses such as the plan grinds beforehand plan, development and test and verify many pneumatic, combustion, conduct heat, the advanced technique such as structure and material. 20 centuries 90 time end, the United States started UEET to grind beforehand again plan, of development and innovation of test and verify, of green, technology of big airlines engine. UEET plans only then at the beginning of 1999, its catalogue mark is to use NASA foundation to grind beforehand the many research achievement in the plan offers advanced component and current technology for engine of new generation aircraft. Specific target is: Compare with GE90 engine, fuel is used up reduce 10% , use charge is reduced 50% , noise reduces 10dB, NOx is discharged reduce 20% . This plan basically has 7 technologies project: Advance systematic unifinication and assess; Reduce discharge; High load turbine fetterses; The material of high-powered engine and structure; Boost a system / plane unifinication; Boost systematic control; The assembly technique test and verify of unifinication. 2004, the United States adjusted UEET to plan FY2004 ～ the working key of 2007. After adjusting, be: Ensure through development intelligent engine of the gender innovates a technology, develop the engine of clean flaming turbine with friendly environment, reducing greatly then harmful discharge with the property that keeps tall while achieve the goal that raises dependability apparently. In plan step, the key is developed inferior the technology of low NOX combustion that aircraft of velocity of sound uses, technology that reduces total specific fuel consumption and the technology that improve comparing of hold in esteem, development exceeds the high-powered entrance technology that aircraft of velocity of sound uses, development rotates the advanced drive technology that alar aircraft uses; Be in child plan step, development is low arrange firebox technology, system compositive technology of machine of impeller of as light as technology of test and verify, high load capacity quality, big lift rotates technology of system of aero advanced drive mixes the ala the fundamental technology of intelligent engine. In addition, in technology of engine of integrated high-powered turbine (IHPTET) and multipurpose, economy but susceptive is advanced turbine engine (VAATE) grinds 2 times this beforehand below the plan, american development and test and verify a few the army and the people are amphibious technology. Former total end is to arrive at the beginning of 21 centuries make the ability of aviation turbine engine relatively the level 1988 raises 1 times, specific target is comparing of hold in esteem rises 100% , rate of bad news oil is reduced 30% and cost decreases 35% . Latter target is to carry development engine of general core machine, intelligence and wear the crucial technology of 3 big fields, make to 2017 the economy of aviation turbine engine but endurance relatively the technical level 2000 raises 10 times, specific target rises like comparing of hold in esteem 200% , bad news oil is led (fuel cost) reduce 25% , development, purchase and cost of whole life maintenance are reduced 60% . 20 centuries of 　 of plan of research of technology of engine of big airlines of 2 European Unions 90 time, european Union country had carried out a few business to grind beforehand with aviation engine plan, develop and test and verify a lot of relatively advanced technologies, obtained apparent effect. 2001, advisory committee of research of European Union aviation (ACARE) strategic institute (SRA) the development goal that defined big 2020 airlines: Relative to the technical level 2000, noise is reduced 50% ; NOx is discharged reduce 80% ; CO2 is discharged reduce 50% ; Accident rate is reduced 80% ; Make be reduced with charge; Time of throw on the market shortens 50% etc. Among them, the development target of engine is: Opposite 2000 the engine of technical level (be like CFM56 and TRENT700) , rate of bad news oil is reduced 20% ; NOx is discharged reduce 80% ; Noise reduces 10dB; Accident rate is reduced 80% ; Make be reduced with charge; Time of throw on the market shortens 50% . For this, european Union country nots hesitate capital of expenditure a huge sum, concentrate working group and the power that study a group, classification (component class, core engine level and engine level) , group by group (European Union the 5th, 6, 7 frame) the big airlines engine that the ground develops systematic whole set grinds beforehand plan, explore and program of engine of big airlines of research convention loop and advanced loop and crucial part technique. In the 5th frame, the aviation engine of European Union country produces an official to learned to the orgnaization is made jointly and be carried out aim to reduce those who discharge is efficient with the aviation engine with friendly environment (EEFAE) grind beforehand plan (core engine level) , aim to reduce plane noise to be affected to residential area substantially (, with the United States collaboration is made and carried out TECH56 and forward position aviation to advance (LEAP56) grind beforehand plan (engine level) . In the 6th frame, continue to make and carried out aim to reduce discharge the aviation engine with the friendly environment with noise (VITAL) grind beforehand plan (low-pressure component class) , started to aim at the same time exploratory study is advanced the program of new-style aviation motor of circular engine (NEWAC) grind beforehand plan (core engine level) . Current, the test and verify of engine construction system that crossing the 6th innovation with the 7th frame in the program (" dream " DREAM) (component and engine level) with clean sky (CLEANSKY) grind beforehand plan, should grind beforehand the plan is plane class plan, include can maintain and green engine (SAGE) cent grinds beforehand plan (component and engine level) . Express 1 collect afore-mentioned a few models grind beforehand the time of the plan, investment, partner and research target. 3 United States and the research of technology of big airlines engine that France cooperates plan 　 (1) TECH56 plan. 1998 ～ 2003, CFMI company made the TECH56 plan that aims to get new technology. Its target is: With CFM56 engine of the level was compared 1999, have cost (Owner Cost) reduce 15% ～ 25% , specific fuel consumption reduces 4% ～ 7% , safeguard charge to reduce 15% ～ 20% , NOx is discharged reduce 50% what set a standard under international Civil Aviation Organization, noise is opposite at FAR36 the level of the 3rd phase reduces 20dB. This plan is developed and test and verify hollow turn sweeps past metallic stuff fan lamina, new Gao Zaihe is high-pressured compressor, low discharge / the double-loop antrum lean oil of low fare mixes firebox, Gao Zaihe beforehand high-pressured turbine, low-pressure to turning turbine and to turning differential. These technologies satisfy what exceeded TECH56 plan even to expect an end, had begun and upgrade those who continue to be used at engine of active service CFM56 and the development of new-style engine. (2) LEAP56 plan. After TECH56 plans, CFMI company decided the future of CFM56 engine develops way, always run charge to be reduced stage by stage namely; Structural design is more firm; Noise is reduced apparently; Discharge enlarge to be reduced greatly; Circular parameter implementation is best; Control is more efficient; Systematic collect by nature is improved apparently etc. For this, CFMI company started LEAP plan, be future 30 years or the technology with further engine development and more advanced test and verify. Its develop and the technology of test and verify includes: The light simple structure such as aluminous, titanium and casing of composite material fan, lamina of advanced composite material fan, efficient and the high-pressured compressor of low oily cost, double-loop form comes back beforehand stream low discharge firebox, turbine 3D is designed, of the innovation generate electricity the engine such as plant design designs a technology basically; Reliable and the component that pledges gently, the exterior hardware of low fare, advanced light simple gear case, the engine system component such as next generation controller designs a technology. The experiment of component test and verify of basic technology began 2007, systematic test and verify experiments to undertake 3 years at the 2 ～ later, and the CFM motor that uses these technologies most antedate investment was used 2013. Additional, grind beforehand in LEAP56 on the foundation of the plan, CFMI company also put forward to pull move type to open type rotor program. The engine of GE36 　 UDF of this plan and GE company is similar. Open type rotor engine to these, undertake old research and experiment test and verify even. Predict to controlled ability to undertake flying experimenting 2015, investment uses the possibility after 2020. The changeful efficiency of part of plane of impeller of machine of 1 compact impeller has exceeded the crucial technology 　 of engine of big airlines of Nextpage 　 future 90% , the latent capacity that increase already not quite. Accordingly, key development and test and verify machine of a few compact impeller, in order to improve engine efficiency, reduce cost, improve economy. Specific as follows: (1) the pressure boost of MTU company crosses compressor of high pressure of velocity of sound than reaching the 6 level of 11; (2) the pressure ratio of MTU company exploratory study is compressor of 20 6 class high pressure; (3) the total pressure ratio that UEET plans to develop is 55 ～ the 1 class fan of 60 / compressor of 3 class low pressure / compressor of 6 class high pressure; (4) the pressure ratio that TECH56 plans to develop is 14.

The compressor of 6 class high pressure of 7. (5) 2 kinds when TECH56 plans to develop are opposite the high load capacity that turn (rise 15% ) , efficient (rise 1% ) high pressure / low-pressure turbine; (6) UEET plan is developed and the class efficiency of test and verify is amounted to 90% , pressure ratio is 5.

The high-pressured turbine of 5; Bear increases 50% , systematic efficiency rises 2% , systematic quality reduces the matchs cheek by jowl low-pressure turbine of 20% . 2 advanced low discharge a technology to be mixed besides development test and verify is poriferous flame tube of flame tube of layer board flame tube, material of pottery and porcelain, wall of poriferous inside and outside and float wall flame tube auxiliary reduce discharge a technology beyond, world-renowned aviation engine design and manufacturer were rolled out successfully a variety of low discharge combustion technology, further development and test and verify the following firebox: (1) double-loop antrum is mixed beforehand beforehand eddy current firebox (TAPS) . AST/DAC TAPS firebox has applied in the GEnx engine of B787 plane. Firebox of the 2nd acting TAPS already planned to issue development and test and verify in LEAP56 and UEET, the target is discharge NOx the value relatively the limiting value of ICAO CAEP/2 reduces 50% ～ 80% . (2) the firebox that be stationed in eddy. The 3rd generation is stationed in the experiment test and verify of eddy firebox to work to had gained a success, to for military use exploration transplanting small contain engine of the fan that compare eddy, business uses big airlines engine, industry and naval vessel boat in gas turbine. (3) TALON firebox. The 1st generation applies already successfully with the 2nd generation. Firebox of the 3rd acting TALON (MSQ firebox) the requirement that NOx discharged a value to satisfy ICAO CAEP/6 greatly, the objective that CO/CH satisfied CAEP/6 is worth (have respectively 60% spend with the abundant of 95% ) , without visible smoke. Firebox of the 4th acting TALON (RSQ firebox) study below UEET plan. (4) lean oil classifications sheet is annular low discharge firebox. Company of R · R consider to plan to issue development and test and verify in ANTLE. (5) double head exceeds low NOx lean oil to be mixed beforehand evaporate beforehand firebox. SNECMA company plan to issue development and test and verify in CLEAN. (6) local evaporate / fast mixture firebox. The NEWAC that wait plans MTU company to be being developed. 3 reduce noise technology besides optimize a loop parameter and use the advanced circulation such as GTF beyond, engine of groovy big airlines basically is mixed through advanced assembly technique advanced short cabin / installation technology, reduce the noise of engine. The advanced part that has used reduces noise technology to include to optimize processing to take energy of life / the fan casing, span that increases fan and entrance diversion lamina, span that increases fan and diversion lamina, optimize fan all class and low-pressure compressor / low-pressure turbine. Be being developed and of test and verify include 3D blade profile (sweep past form of form He Gong to wait) wait with wake management. The adoption that has applied is advanced short cabin / installation reduces noise technology to include scarf type blender of type of short cabin entrance, wave valve, use at take off and landing the blender of exterior air current of condition / bring shoot implement, spray pipe of alterable area fan, small dash forward piece core of 3D of spray pipe, control. The structure with 4 original original structures is to reduce quality of big airlines engine and the crucial technology that improve dependability, particularly important also to improving engine economy, at present engine structure is in to component unifinication, refrigeration efficient change and the structure is compact change directional development. Technology of new-style unifinication structure includes: Fan / compressor whole leaf dish (annulus) ; Fan / group of compressor static Xie Cheng; Compressor rotor section solders; Turbine whole leaf dish; Integral frame; Integral blender / diffuser. Technology of new-style and efficient cooling structure includes: Poriferous layer board flame tube of refrigeration of film of gas of flame tube, float wall flame tube, much inclined hole, sudoriferous cooling flame tube, complex much passageway forces film of convection air entrainment lamina of cold turbine of cooling turbine lamina, casting, in-house convection enhances cooling turbine. Compact technology includes new-style construction to turning without guider turbine is mixed be opposite without Jing Zi turn fan technology. The material with 5 advanced material and advanced technology and craft also are to reduce quality of big airlines engine, raise function, improvement one of socioeconomic key technologies, at present it is in tropism can be efficient change and the environment is harmless change 2 direction to develop. Function is efficient change material and craft to include: Outside rotor of contain casing, fan / static cotyledon piece, include the colophony of the Leng Duan component such as annulus base composite material and craft; Compressor rotor / static child Xie Huan of blade, whole, axis the titanium of lukewarm component in waiting base with nickel base composite material and craft; Rotor of firebox flame tube, turbine / the pottery and porcelain of the high temperature component such as spray pipe of oriented lamina, exhaust base composite material and carbolic carbon composite material and craft; Metallurgy of eddy turntable powder reachs craft; Alloy of turbine lamina single crystal reachs craft; The compound between the titanium aluminous metal of compressor lamina and low-pressure turbine reachs craft; Coating of heat barrier of advanced environmental protection and craft. To satisfy prospective aviation engine " without the harm " need, the company such as PW and MTU is coming true hard " yard place does not have harmful material, the staff member does not have injury, offerred product and service are safe " target. Its develop and the crucial technology of test and verify and measure include: Make sure material makes full use of, the design technology of use advantage; The environmental protection material with new development and the priming paint that do not have chromium and coating; Development purify is active service engine and prospective motor are harmful the technology of material; Development avoids harmful material to appear the workmanship with trash eduction; Develop the workmanship that makes the sources of energy makes full use of to ensure material is used entirely; Develop and perfect the workmanship that makes the job such as metallic cut, bore, finish machining least; Study evil stuff handles technology and 6 price chromium finishing replaces a technique; Develop clear lotion of green and lubricant material. Technology of control of intelligence of engine of technology of 6 intelligence control has can the working environment of accurate perception engine and its component and the ability that execute specific mission, it still can get used to the position that metabolic environment and power reduce quickly, plan accurately / new program a job is whole even the task, the integral performance that makes whole engine falls in all job status then (function, but maneuverability, dependability, life, charge) achieve best, achieve the wear that improves engine and economy but the purpose of endurance. Current, the intelligent engine that intelligent control technology advances systematic intelligence to dominate project and VAATE plan in what UEET plans considers to development and test and verify undertake below the domain. Its key technology basically includes: Combustion, clearance and oscillatory active control technology; High accuracy real time function and life model technology; Technology of distributed active control; Engine health manages a technology; Intake duct of sex of unifinication low observation and spray pipe technology; Sensor mixes personal computer report to move implement technology; Information confluence technology; Advanced nonlinear technology; Fuel of address structure, controlled chemical reaction. 7 advanced loops have the cause that challenges a gender more to satisfy, the world's famous aviation engine design and manufacturer are in exploratory study more the path of advanced loop big contain of economy and environmental protection compares engine skill. (1) much report engine. The aviation engine of country of the IHPTET plan that is in the United States, European Union uses bearing of active magnetic force (AMBIT) , address aviation engine uses magnetic force bearing (MAGFLY) , many report engine and wing system (MEEAWS) , POA, VITAL, NEWAC grinds beforehand the SAGE of the plan, be in or will undertake technical test and verify. Its key technology includes address aviation engine to design system of bearing of technology, active magnetic force with bearing of active magnetic force, inside buy type whole starts / master piece of system of dynamo, distributed control, electric fuel pump and report is moved implement etc. (2) to turning eddy fan engine. The SAGE branch that plans in EEFAE, SILENCE, VITAL, CLEANSKY plans to fall to had been finished, be in or will undertake technical test and verify. Its key technology includes low noise to exceed big contain path to pledge engine of structural member, large moment of force pledges axis, gently casing, gentlier than including fan, gently character low noise turbine, light qualitative short cabin, fan, right to turning turn turbine and low speed pressure boost. (3) the eddy fan engine of gear drive. In fan of advanced contain path paddle (ADP) fan of plan of chance of test and verify, advanced technique is integrated machine of test and verify (ATFI) plan, VITAL, NEWAC and CLEANSKY grind beforehand had finished below the SAGE of the plan, be in or will undertake technical test and verify. Its key technology incorporates the gear case technology of light qualitative, efficient, high reliability, light technology of qualitative, compact compressor of high speed low pressure, technology of turbine of low pressure of little progression, short length, light quality. (4) engine of the cold aviation that answer heat. In engine of CLEAN, aviation technology of advanced exhaust regenerator (AEROHEX) , VITAL, NEWAC and CLEANSKY grind beforehand had finished below the SAGE of the plan, be in or will undertake technical test and verify. Its key technology includes the axis among to flow - radial compressor, efficient pledge gently cold implement, high-pressured compressor breathes heavily actively brace up control system, change geometrical turbine system (high pressure, middling pressure and low-pressure turbine) , the structure is compact and the regenerator package with big difference in temperature. (5) engine of rotor opening type. 80 time had 20 centuries a large number of research and test and verify, basic or 90 time are adjacent stop, the near future begins to undertake exploratory study and experiment test and verify below the plan such as DREAM, LEAP56 again. Last word as compact impeller machine, low discharge firebox, advanced fall the groovy eddy such as control of technology of a confusion of voices, original structure, advanced material and craft, intelligence fan engine technology, and engine of fan of gear drive eddy, the ceaseless development of the technology of key of advanced loop engine such as engine of the cold aviation that answer heat and much report engine and maturity, the performance of engine of prospective big airlines will be higher and higher, economy will be better and better, environmental protection is characteristic will more and more get ameliorative, can gain revolutionary headway even. CNC Milling CNC Machining