Drdo technology focus

Godless-Kafir

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Extremely good going by DMRL, i had a very long chat with the Kaveri Engine designers in Aero India-11. They had told me that they have successfully created the Single Crystal blade technology for he compressor spools, which was a great accomplishment by them. Now DMRL has gone ahead and done a better job on the Nickel alloy but any further news of its application and use in the engine?
 

Godless-Kafir

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I scrolled through the whole PDF file, guys its really worth going through that. Its a great read and it looks like NMRL,DMRL and DRDO have take up the burden of closeing the technology gap on to their shoulders. I am impressed that they are even working on OLEDs!! Awesome work. Critiques must go through this.
 

JAISWAL

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well said GLK.
First time i had seen such detail work and such important work completed by drdo lab with out mutch problem.
 

JAISWAL

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anothe artical how this helped in making SCB for engines.
New Page 4

Directionally Solidified &
Single Crystal Turbine Blades
& Vanes

A
state-of-the-art gas turbine
aerofoil component sometimes
works in an environment of
temperature beyond even the
melting point of the alloy used
for manufacturing it. These
superalloy components possess a
complex aerofoil geometry and
are investment cast to equiaxed
component or columnar grained
or single crystal components by
directional solidification to
increase the performance. The
technologies for both equiaxed
and columnar grains or single
crystal have been indigenously
developed and demonstrated by
DRDO for a variety of
components. In the directional
solidification, a bottom open
ceramic shell mould is placed on
a water cooled copper plate
mounted on a ram shaft and is
heated by an in situ mould
heater in a vacuum casting
furnace to a temperature
beyond the melting point of the
alloy to be cast. When the
melted alloy is poured into the
mould the alloy at the copper
plate gets chilled and a
columnar grained structure
develops in the direction of heat
extraction. The solidification
proceeds into the mould cavity
when the mould is lowered out
of the mould heater. To produce
a single crystal structure, some
constriction ahead of initial
columnar grain structure that
allows growth of only one of the
grains of the columnar structure,
usually a helix with about one
turn, is used.
Leachable fused silica cores are
used for casting aerofoils to very
tight tolerances with complex
internal cooling passages
characterised by thin walls of the
order of 0.5 mm. The shell and
core system is designed so that
no distortion occurs at the
temperature of directional
solidification of about 1500 oC.
 
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JAISWAL

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another important invention
link-- New Page 4

Radar Scattering
Camouflage Net

DRDO has developed an
indigenous synthetic pre-
garnished Radar Scattering
Camouflage Net (RSCN) to
provide protection to
ground-based military
objects against modern
reconnaissance systems. It
consists of a well designed
garnishing material
developed from PVC coated
nylon fabric having a suitable
metallisedpolyester grid
structure. Suitable pigments
were used in PVC coating to
provide desired visual and
near IR reflectance.
The coated fabric was incised
in a definite pattern for
adaptability to natural back
ground and mounted on
flexible strong synthetic net
frame. The RSCN has been
recommended for
introduction into the
Services.
Main Characteristics
Pre-garnished and
provided with
camouflage pattern
suitable for green belt
and desert terrains
Possesses camouflage
properties at visible,
near infrared and
microwave frequencies
Does not propagate
flame in case of fire
Low water absorption
Indigenously available
raw materials.
 

nitesh

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HAL Koraput plant is manufacturing AL 31 engines also, so it seems that the technology developed for kaveri is going to be used to be productionized in the same plant, all in all seems like Koraput is going to be manufacturing hub for the engines
 

rudresh

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right now kaveri engine is having low bypass ratio of .22 {up from .18} these materials are going to increase the thrust of kaveri.
if the bypass happens to be near .5 to.65 {may be with french assistance}it may spew out a massive 120kn.
 

JAISWAL

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Chindits: DRDO Hands Over Integrated Thermally Regulated Shelters To Army


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The integrated thermally regulated shelters to
provide protection to the soldiers against extreme
climatic condition of the Himalayan regions, were
dedicated by Dr. Vijay Kumar Saraswat, SA to
RM, Secy Defence R&D and DG, DRDO to the HQ
14 Corps in Leh, Ladakh on 15th June 2011. Dr.
Saraswat handed over these shelters to Lt Gen
Ravi Dastane, VSM, GOC, HQ 14 Corps in the
presence of Dr. W Selvamurthy, Distinguished
Scientist & Chief Controller R&D (Life Sciences &
International Cooperation) and other senior
officers from Army and DRDO HQrs. Speaking
on the occasion, Dr. Saraswat thanked the GOC
14 Corps for his whole-hearted support to DRDO,
particularly DIHAR. He also assured DRDO's
continued support and cooperation to the armed
forces present in the region. Dr. Saraswat also
thanked the local authorities and farmers in the
region for their support to DIHAR.
........
Chindits: DRDO Hands Over Integrated Thermally Regulated Shelters To Army
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for full article please visit above link....
 
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JAISWAL

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BEL order for KELTRON to manufacture Mareech sonar arrays

BEL order for KELTRON to manufacture Mareech sonar arrays - Frontier India - News, Analysis, Opinion
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BEL order for KELTRON to manufacture Mareech sonar arrays

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Bharat Electronics (BEL), Bangaluru has placed an
order with Kerala State Electronics Development
Corporation Ltd (KELTRON) for two Sonar Arrays
for "Mareech" at a cost of Rs 6 Crores. Mareech is
an anti-torpedo defence system developed
Technology developed by the Naval Physical and
Oceanographic Laboratories (NPOL) under the
Defence Research and Development Organisation.
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.,,.....,,....for full article please go to above link
 

JAISWAL

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DRDO works on High Power Electromagnetic Weapon and Electronics Hardening Technologies
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Research Center Imarat (RCI), a premier laboratory of Defence Research and Development Organisation (DRDO), has begun working on the development of High Power Electromagnetic (HPEM)weapon technologies with a view to use these technologies to harden their systems for a similar environments. It includes High Power Microwave (HPM) and Ultra Wide Band (UWB)...........
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HPEM weapons have matured up to the extent of knocking down low earth orbiting satellites. HPEM has many defence applications like ground penetrating radar, see through radar, food preservation and medical applications.
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.for full artical please visit below link.............
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DRDO works on High Power Electromagnetic Weapon and Electronics Hardening Technologies - Frontier India - News, Analysis, Opinion
 
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JAISWAL

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DRDO works on National Mission for developing AFV engines
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Defence Research and Development Organisation (DRDO), the India's premier defence research agency, has launched National Mission development of Armoured Fighting vehicle (AFV) Military Engines for the power range 400 hp – 1500 hp. DRDO is particularly focusing on 1500 hp engine, utilising the experience and infrastructure avaliable within India. The 1500 hp engine will be configured and developed to meet the requirement of futuristic Main Battle Tanks. DRDO plans to develop this engine in five years time.
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for full news please visit . . . . . . . . . .
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DRDO works on National Mission for developing AFV engines - Frontier India - News, Analysis, Opinion
 

sayareakd

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why not give this to private sector, they have infrastructure to make engine, they can deliver the same within time period and DRDO can concentrate on more important project.
 

JAISWAL

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then how will our defence ministry's babus will survive, with out thoes extra bucks.
 

sant

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Invest more money in indian research . Involve indian private induristries. Shelve snecma joint venture since joint engine cost almost equal to imported one.Import required engines .
 

agentperry

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why not give this to private sector, they have infrastructure to make engine, they can deliver the same within time period and DRDO can concentrate on more important project.
private sector dont have such capability. engines tata make is with full co-operation with fiat. i have my family member in tata motors. tata motor is using everything fiat can provide from electronics and engines. they are also using JLR stuff for making tata cars better. there R&D facility is not producing PATH-BREAKING techs.
they do have good managment but not good researchers. making engine under tata industries only if they take over a engine making firm or they make a JV.
other firms are far far behind from tata motors.
 

Rehan's_Ninjato

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Great...Way to go DRDO...
I hope DRDO develops an advanced ~120 kN + reduced signature version of Kaveri to power the AMCA. Guys does anyone have any news about AMCA? I asked Prasun Sengupta, he replied that AMCA might not see daylight prior to 2035..Though DRDO and most AF sources have been quoted saying the service date would be 2020-25.

Whom to trust!!
 

Tshering22

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Great...Way to go DRDO...
I hope DRDO develops an advanced ~120 kN + reduced signature version of Kaveri to power the AMCA. Guys does anyone have any news about AMCA? I asked Prasun Sengupta, he replied that AMCA might not see daylight prior to 2035..Though DRDO and most AF sources have been quoted saying the service date would be 2020-25.

Whom to trust!!
If DRDO can replicate the success of INS Arihant then I would like to trust them. But they have been failing the nation for a long time in terms of timely delivery of quality defence goods. So let's just pray that the AMCA continues its research path, borrows and evolves PAKFA technology and gets into IAF soon rather than ADA sitting to re-invent the wheel all over again.
 

JAISWAL

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DRDO to test image sensors on aircraft

DRDO to test image sensors on aircraft | idrw.org



The Defence Research and Development Organisation (DRDO) has completed development of an imaging satellite, which, according to sources, is in the process of integration with the aircraft for testing. V K Saraswat, Scientific Advisor to the Defence Minister had said earlier this week that he was in discussion with the Indian Air Force about the same.

""¦We have a synthetic aperture radar (SAR) systems programme. Electronics and Radar Development Establishment (LRDE), one of our labs here, is developing it," he had said. One SAR is already complete and will be tested onboard a Dornier aircraft.

It has gone through the ground testing already and is ready for flight evaluation that could begin anytime.

An active sensor, synthetic aperture radar can image both in day and night. It has an all-weather capability. "SAR images are characterised by shadows, highlights, corner reflector effect, layover and shortening," DRDO said.

Sources added that SAR, being sensitive to surface roughness and topography, can easily detect constructed areas and camouflaged objects.

It has the advantage of low revisit time due to steerable beam and cloud penetration capability.
 

sesha_maruthi27

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Good work by the D.R.D.O. Suddenly the D.R.D.O.has started to become a self reliant and dependable entity for the INDIAN ARMED FORCES.
 

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