Drdo technology focus

Discussion in 'Defence & Strategic Issues' started by JAISWAL, May 18, 2011.

  1. JAISWAL

    JAISWAL Senior Member Senior Member

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  3. Godless-Kafir

    Godless-Kafir DFI Buddha Senior Member

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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?
     
  4. Godless-Kafir

    Godless-Kafir DFI Buddha Senior Member

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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.
     
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  5. JAISWAL

    JAISWAL Senior Member Senior Member

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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.
     
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  6. JAISWAL

    JAISWAL Senior Member Senior Member

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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.
     
    Last edited: May 19, 2011
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  7. JAISWAL

    JAISWAL Senior Member Senior Member

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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.
     
  8. nitesh

    nitesh Mob Control Manager Stars and Ambassadors

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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
     
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  9. rudresh

    rudresh Regular Member

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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.
     
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  10. JAISWAL

    JAISWAL Senior Member Senior Member

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    [​IMG]
    Chindits: DRDO Hands Over Integrated Thermally Regulated Shelters To Army
    [​IMG]
    [​IMG]
    .
    .
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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
    .
    for full article please visit above link....
     
    Last edited: Jun 16, 2011
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  11. JAISWAL

    JAISWAL Senior Member Senior Member

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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

    .
    .
    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.
    .
    .
    .,,.....,,....for full article please go to above link
     
  12. JAISWAL

    JAISWAL Senior Member Senior Member

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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)...........
    .
    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.
    .
    .

    .for full artical please visit below link.............
    .
    DRDO works on High Power Electromagnetic Weapon and Electronics Hardening Technologies - Frontier India - News, Analysis, Opinion
     
    Last edited: Jul 12, 2011
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  13. JAISWAL

    JAISWAL Senior Member Senior Member

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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.
    .
    for full news please visit . . . . . . . . . .
    .
    DRDO works on National Mission for developing AFV engines - Frontier India - News, Analysis, Opinion
     
  14. sayareakd

    sayareakd Moderator Moderator

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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.
     
  15. JAISWAL

    JAISWAL Senior Member Senior Member

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

    sant Regular Member

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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 .
     
  17. agentperry

    agentperry Senior Member Senior Member

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    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.
     
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  18. Rehan's_Ninjato

    Rehan's_Ninjato Regular Member

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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!!
     
  19. Tshering22

    Tshering22 Sikkimese Saber Senior Member

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    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.
     
  20. JAISWAL

    JAISWAL Senior Member Senior Member

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    DRDO to test image sensors on aircraft

    DRDO to test image sensors on aircraft | idrw.org

    [​IMG]

    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.
     
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  21. sesha_maruthi27

    sesha_maruthi27 Senior Member Senior Member

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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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