After the long while the day came that is on 5th jan 2011 which was very enlightening and educational session on avembsys by our SME.At the start of the class we were refreshed about the basics of C language by our friend.
Initially we started with "FLIGHT MANAGEMENT SYSTEM" which is way of guide fed into the systems of aircrafts.Then we discussed about the electronic warfare which implemented the technique of "ELECTROMAGNETIC PULSE(EMP)" which is a high density electromagnetic pulse sent to any elementary missile which is not designed to withstand the high magnitude and is destroyed.
How does an aircraft fly?
Aerodynamic basics and some physical concepts such as Mass, Weight, Force, Momentum, Moment, Couple, Density, Viscosity, Temperature and Pressure. Then we had a brief concept on Gas Laws, Isothermal Process, Adiabatic Process, Standard Sea Level Conditions and Aircraft Terminologies such as Aircraft Attitude, Centre of Gravity, Aerodynamic Centre, Centre of Pressure.
Mach Number= speed of body
speed of sound
Next we deeply discussed about the air pressure that gives lift to plane.The device, Pitot tube, used to determine the aircraft speed and also referred to an air crash of Air France 447 that killed 228 people which resulted due to malfunctioning of pitot tube.The jet aircraft uses the technique of JET(small and fast stream of a fluid)which sucks the air and forms a fast jet and ejects it back of engine.
Then we were introduced to the various elementary parts of a modern day aircraft.These parts play the vital role to drive and handle an aircraft starting from take-off to landing.They are,
- Jet Engine-Generates the thrust
- Cockpit-Command and control
- Flaps-Change lift and drag
- Slats-Change lift
- Aileron-Change roll(Rotate body)
- Spoilers-Change lift and drag(Rotate body)
- Rudder-Change yaw(side-to-side)
- Elevator-Change pitch(up-down)
- Fuselage-Holds thing together
- Horizontal Stabilizer-Control pitch
- Vertical Stabilizer-Control yaw
- Wings-Generate lift
They help the aircraft to maintain its speed, altitude, attitude and direction.
After a lunch break, the session resumed with a small video session which was very interesting.It started with a video depicting VTOL (vertical take-off and landing) systems in Fighter Jet Planes. Also in the video session was the air crash of Airbus A320 due to fatal errors made by the pilot and authorities. The session proceeded to its end with the discussion of projects.The hardware interested students was assigned a project to design two transceiver systems, each interfaced with 8051 micro-controller and consisting of a keypad and LCD. The module also consists of a line sensor that monitors the two devices and responds if there is crossing. And for the software students we were given a brief about the SDLC (Software Development Life Cycle) and the V-Model that is being used on to develop Critical Systems.
The next session is scheduled on Friday, 7th January 2011 and the session going very interestingly we are eagerly waiting for the next session.............
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