MMPP Salyut is developing on non-metallic applications for fighter engines in pakfa

[Drsomnath999]

MMPP Salyut has been working on non-metallic (composite) applications for fighter engines for some time now, as was revealed in a publication in 2009. They undertook detailed tests on composite fan-blades, stator motors, turbines, engine shroud and other components. Aside from the RCS reduction and higher performance ramifications, a weight saving target of 30% was set over the standard AL-31F.

MMPP Salyut has also filed several patents including one a decade old for the strengthening of ceramic fan blades (possibly for stator blades), and the second relates to powder metallurgy for sealing high-temperature composites materials (in the turbine).
Google Translate

Google Translate

The Russkies also possess the injection RTM composite fabrication technology used in Snecma's Leap 1B composite fan (and panel construction of F-22/35):
Google Translate

In short, Sukhoi decided against S-ducts for a good reason, as it's quite possible the 'Type 30's' compressor won't be composed of superalloys (though Salyut's Chief Designer Gennadi Skirov confirms it will have a 3-stage BLISK low-pressure compressor and a 6-stage hp comp.).



courtesy: jo asakura from key pub
thank u for the info mate

very important news for pakfa ,if it turns out to real then we may see non metallic compressor face which means far less radar reflection than traditional metal compressors .So a wise move by
russians by that they dont require any S shaped air intake for which they would have to place the
engines close to each other like F22 & J20 in the rear fuselarge which if have happened would have made impossible to have another weapon bay in the rear fuselarge of pakfa:yahoo:

 

[Drsomnath999]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

PAK-FA AIR INTAKE

well one can see that pak fa air intake exposes about 1/3 rd of compressor face compare to Su 30 air intake ,but product 30( code name of pak-fa engine) if it is going to have really a non metallic compressor face then radar reflection would be reduced considerably as compare to a metallic compressors as metals reflect radar more than non metals


& one more advantage would be it wont have to need radar blockers for it's engine as radar blocker
affects the performance of the engine .

 

[Godless-Kafir]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

That is not the engine blades, its a flexible duct that looks like fan blades but its actually veins.

 

[sukhish]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

indeed, India's relationship is very important. russia still makes world class weapons and reasonably priced for India. we can let this relationship go awry.

 

[Drsomnath999]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

That is not the engine blades, its a flexible duct that looks like fan blades but its actually veins.

HI Gk gud to see u back buddy

those video u posted is actually a fictious /conceptual video it has got no relevance in reality & compressor face u check again in the pics which i posted
it looks different from the pics which u posted

 

[Drsomnath999]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

Here is an extract from a technical paper from Ufa State Aviation University (Уфа: УГАТУ) regarding the development of the next generation engine (by referring to the "fifth generation engine"- it is, by all accounts, referring to the PAK-FA stage 2 engine in all but name), dated 2008:

QUOTE:

Разработка двигателя нового поколения требует создания и использования новых материалов с высокой удельной прочностью —композиционных материалов (КМ) на металлической матрице. ВФГУП НПП «Мотор» отрабатывались вопросы разработки лопаток компрессора из КМ (B-Mg), проводились обширные экспериментальные исследования по оценке механических характеристик КМ на образцах и моделях лопаток при разных видах нагружения и обеспечения эксплуатационных свойств материала"¦

...В двигателестроении России приоритетными являются такие задачи, как модернизация двигателей 4++ и создание научно-технического задела для разработки двигателей пятого поколения.

Development of the next-generation engine requires the creation and use of new materials with high specific strength, composite materials (cm) on a metal matrix. VFGUP NPP Motor undertook the development of compressor blades from composite materials (Mg-B), carried out extensive experimental study on evaluation of the mechanical characteristics of the samples and models of fan blades with different types of loading and operating characteristics of the material"¦

...the Russian aircraft engine industry has prioritised tasks such as upgrading engines of 4++ (generation) and the establishment of scientific and technological solutions to develop fifth-generation engines.
http://www.ugatu.ac.ru/publish/vu/stat/UGATU-2008-2(29)/07.pdf

So what they're talking about is developing a fan-blade composed of what they call 'Meta-Composites', in this case a magnesium matrix reinforced with boron-carbon fibre composite. This would replace the Titanium superalloy 1st stage of the compressor.



Here is a Chinese technical paper on magnesium (Mg) alloys which it describes as possessing "special radar-absorption characteristics, low density and high rigidity"¦".
Quote:

В ОАО «НПП «Мотор» создана рабочая лопатка первой ступени ком-
прессора ГТД на основе магниевой матрицы, армированной борными и углеродными волокнами.

OAO "NPP" Motor " have established a working fan-blade of the [engine] compressor's first stage based on a magnesium matrix, reinforced boron (Mg-B) and carbon fibre composite.
http://www.ugatu.ac.ru/science/dissov/d5/27.04.12/nusratullin_avtoreferat.pdf

So it appears to be a very high-tech and elegant solution, also involved in composite fan blade development are FGUP TsIAM and FGUP VIAM (ФГУП ЦИАМ & ФГУП ВИАМ), these are big on nanotech, so I guess the final composition will be very interesting indeed!

COURTESY :JO ASAKURA
THANK U FOR THE INFO MATE

 

[Godless-Kafir]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

Hi som, good to see you to.

What you see is not the fan blades but the guide vanes. Either way the fan blades are exposed and to see that they have not come up with any solution so far seems disturbing, the fan blade material you posted seems to be still on R&D and we have not clue when that will mature.

 

[p2prada]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

No. Those are fan blades. The blockers haven't yet been placed or will never be placed. We had some one saying there will be a Plasma field used in the inlet instead.

 

[Drsomnath999]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

What you see is not the fan blades but the guide vanes. Either way the fan blades are exposed and to see that they have not come up with any solution so far seems disturbing, the fan blade material you posted seems to be still on R&D and we have not clue when that will mature.

no mate
the pic u posted earliaer is not the same which u posted here .those are indeed fan blades.

well buddy i think project 30 is in advanced stage of development,well this is the most practical way of reducing Radar reflection from engine intake as metals reflect
radar more than non metals .

 

[Drsomnath999]

Re: MMPP Salyut is developing on non-metallic applications for fighter engines in pa

A report from an engine technology exhibition some time late 2011 detailing FGUP TsIAM's work.

http://engine.aviaport.ru/issues/79/pics/pg04.pdf

As regards PAK-FA, TsIAM is delegated work regarding:

малоступенчатым высоконагруженным вентилятору и КВД с низкой массой;
A fewer staged, high loading fan and a low mass, HP compressor;

основной высокотемпературной камере сгорания;
The main high-temperature combustion chamber;

высокотемпературной одноступенчатой ТВД;
High-temperature, single-staged HP turbine;

легкой форсажной бесстабилизаторной камере сгорания;
A lean-burn combustion chamber without a stabilizer

цифровой САУ с полной ответственностью (FADEC).
FADEC

Also reported is work on a UAV (UCAV?) engine and conceptual design of the PAK-DA engine.

Interesting pics:

БЛИСК турбины из биметаллического сплава (page 5, top left)
BLISK turbines made of a bi-metallic alloy

Камера сгорания перспективного ТРДД (page 5, middle-RIGHT)
Section of combustion chamber for a future engine

Лопатка РК модернизированного КНД из полимерного композита (page 6, top left)
Fan blade 'RK' for upgraded LP compressor made of polymer composites.

Лопатки РК и НА перспективного КНД (page 7, top left)
Fan blades 'RK' & 'NA' for a future LP compressor

Рабочие лопатки турбины из композиционных материалов (page 7, bottom-left)
Working fan-blades of a turbine made of composite materials.

COURTESY: JO ASAKURA
THANK U FOR THE INFO MATE