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    SUMMER TRAINING REPORT- 2010

    HINDUSTAN AERONAUTICS LIMITEDACCESSORIES DIVISION, LUCKNOW

    INSTITUTE OF ENGINEERING AND TECHNOLOGYLUCKNOW

    Submitted to:Mr. D.K SRIVASTAVA

    SENIOR MANAGER, A.L.HHINDUSTAN AERONAUTICS LIMITEDACCESSORIES DIVISION, LUCKNOW

    Submitted by:PUNEET TRIVEDI

    B.TECH FINAL YEARELECTRONICS ENGINEERING

    ROLL NO. 2805231003

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    ( )industan Aeronautics Limited HAL came intoexistence on .st October 1964

    The Company was formed by the merger of HindustanAircraft Limited with Aeronautics India Limited and

    , .Aircraft Manufacturing Depot Kanpur

    ,It was late Seth Walchand Hirachand who set up HindustanAircraft Limited at Bangalore in association with the.erstwhile princely State of Mysore in 23 December 1940

    The Government of India became a shareholder in March 1941

    .and took over the Management in 1942

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    HAL(HINDUSTAN AERONAUTICALS LIMITED)is a navratna public sectorunit and is presently ranked 34 among the global defence company.

    HAL employees more than 30000 experinced personnel distributed.There are 19production division and 9 R&D centers developed across the country located at

    Banglore ,Kanpur, Korwa, Nasik, Hyderabad,Lucknow.

    Banglore is the corporate office of all the division.

    HAL also plays a major role in missile projects of the country.

    Major production range are SU-30MKI, JAGUAR, HAWK, DORNIER228, DHRUV(ADVANCED LIGHT HELICOPTER), CHEETAL and CHETAK helicopters.The limited series production of LCA, IJT, and LCH has commenced and will beintroduced in the service shortly.

    INTRODUCTION

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    :HAL has made substantial progress in its current projects

    Dhruv , which is Advanced Light Helicopter( )ALHTejas - Light Combat Aircraft (LCA)

    ( )Intermediate Jet Trainer IJT Various military and civil upgrades.

    HAL has played a significant role for India's space

    programs by participating in the manufacture ofstructures for Satellite Launch Vehicles like

    PSLV ( )Polar Satellite Launch Vehicle SLV ( -Geo synchronous Satellite Launch

    )VehicleIRS ( )Indian Remote SatelliteINSAT ( )Indian National Satellite

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    http://www.hal-india.com/hptmrodivision.asphttp://www.hal-india.com/transairdivision.asphttp://www.hal-india.com/overhauldivision.asphttp://www.hal-india.com/imgtdivision.asphttp://www.hal-india.com/helicopterdivision.asphttp://www.hal-india.com/enginedivisionbangalore.asphttp://www.hal-india.com/avionicsdivisionkorwa.asphttp://www.hal-india.com/avionicsdivisionhyderabad.asphttp://www.hal-india.com/aircraftdivisionbangalore.asphttp://www.hal-india.com/aerospacedivision.asphttp://www.hal-india.com/accessoriesdivision.asphttp://www.hal-india.com/aircraftdivisionnasik.asp
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    http://www.hal-india.com/EngineKoraput/products.asphttp://www.hal-india.com/Enginebangalore/products.asphttp://www.hal-india.com/Accessories/products.asphttp://www.hal-india.com/AvionicsKorwa/products.asphttp://www.hal-india.com/Aerospace/products.asphttp://www.hal-india.com/helicopter/products.asphttp://www.hal-india.com/AircraftBangalore/products.asphttp://www.hal-india.com/AvionicsHyd/products.asphttp://www.hal-india.com/AircraftNasik/products.asp
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    Acccessories Division Lucknow

    Mechanical Factory Fuel Factory Instrumentation Factory SU - 30

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    Gyroscopic instruments

    Radio magnetic indicator(RMI)

    Transformer rectifier unit(TRU)

    Tachometer

    Thermometric probe

    INSTRUMENT FACTORY

    Various projects running and manufactured ininstrument factory are:-

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    Electronic Block PIN 4867-5

    The electronic block provides an artificial feel of forces on joystick to the pilot duringpitching(Nose up/down) of the aircraft.

    Units input - air speed and altitude from capsule unit

    Units output - electrical signals 0-100 micro A. to drive actuator for increase feel offorce of decrease feel of force.

    The active computer circuit is receiving speed and altitude data (E and ES) from capsuleunit.

    These data are analyzed by computer circuit, which supplies a voltage whichvaries with pneumatic input data i.e. E = f(E- ES1) volt.

    This voltage is compared with the voltage RF from follow up unit(feedback from actuator)the error voltage EF-RF resulting from the comparison is amplified and transmitted to thepower amplifier which supplies either data E1(high aircraft speed)or E2(low aircraft speed)of the actuator .

    Thus electronic block is controlling the actuator position (increase feel of forces or

    decrease feel of forces) according to the received pneumatic data.

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    Amplifier PIN 7298792

    The amplifier is used to regulate HOT & COLD air of cabin by opening orclosing of the temperature control volve and bypass volve.

    The HOT & COLD air comes from the cooling unit which consists of a

    compressor,a heat exchanger

    The principle is based on amplification and servomechanism.

    Units input i) Cabin temperature sensor (2000 at 25c)

    ii)Duct temperature sensor (2000 at 25c)

    Units output operating voltage 115Vac 2.5% for temperature control volve

    and bypass volve.

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    Cabin sensors SpeedContr

    olAmplifier

    Thyristr

    Lower LimitSensor Bridge

    Low

    Limita

    mplifi

    er

    Tachometergeneator

    Volves

    Volves

    Preset R

    Slaving Bridge

    Duct SensorBridge

    Pre

    amplifier

    Mainampli fie

    r

    Negative feedback

    ofSpeedLinearization

    Servo Motor and Control

    Ampliefier

    BlockDiagram

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    GENERAL BLOCK DIAGRAM OF SYSTEM

    Fuel Quantity and FlowMetering System

    STR7-51

    FUEL Flow

    MeteringPortion

    Fuel Quantity

    GaugePortion

    Automatic

    ControlPortion

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    FCG PROBE(LCA)

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    Function:LCA FCG probe are used fuel content gauging of internal fuel tanks.Some of the probes arewith built in independent level switches (high/low level) along with fuel content gauging.

    Principal:

    a)Fuel Content Gauging Probe : principle of capacitance gauging.

    b) Fuel Level Switches : principle of Weins-Bridge oscillator.

    Construction:

    a) FCG Probe:It consists of two concentric alluminium alloy tubes insulated from each other to formcapacitance plates.b) Fuel level switches:The level sensing is achieved by using 2 concentric tubes of shorter lengths and of largerdiameter than those of main gauging probes.

    FCG PROBE(LCA)

    TEMPERATURE SENSOR

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    TEMPERATURE SENSORPIN 1722.00.000

    Function :Temperature sensor used in helicopter to sense the temperature of the medium in which

    sensitive ports (bulb) of the unit is immersed

    Principle of operation :Increase in resistance of metal with increase in temperature

    Construction :

    Consists of mixed resistance temperature detector, wound on an insulated former, theseare mounted in a tabular body closed at one end.

    Working :Due to change in temperature resistance of temperature detector changes and appropriate

    signal is sent to temperature detector

    Specification :Insulation resistance > 20m ohmlength = 82.5-83.5mmweight = 25gms max.

    used in ALH