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Rocketry

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Rocketry Powered By Docstoc
					                     Rocketry

Presented by:-


 Name: Naresh kumar
 Roll No.: B 45
 Section: G4004
 Registration No.: 11006399
                      Content
 1.Introduction
 2.History
 3.Various Types
 4.Principle Used
 5.Parts of rocket
 6.Advantages and Uses
 7.Disadvantages
 8.Future
 9.References
               Introduction
The design, construction, launching and operation of
rockets.
A Rocket is a missile , spacecraft ,aircraft or other
vehicle which obtains thrust from a rocket engine .
Rocket engine work by action and reaction. Rocket
engine push rockets forwards simply by throwing their
exhaust backwards extremely fast.
History
The first rocket
originated in China in
998 A.D. and
subsequently the Middle
East with the discovery
of gunpowder. when we
use rockets for military
purposes we call them
missiles.
Various Types
 There are actually many
 different types of
 rockets:

1. Missiles
2. Space rockets such as
   the Saturn V used for
   the Apollo program.
3. Rocket car
4. Rocket powered
   aircraft
5. Rocket Torpedos.
Principle Used
 Rocket works on Newton’s third law of motion i.e.
 Every action has an equal and opposite reaction .
 When in the rocket burns combustion of fuel takes
 place and gases which are formed by the combustion
 of fuel comes out with high speed . Gas emitted out
 applies great force on the ground , this force serves as
 the action and in reaction to this force same amount of
 force is exerted on the body of the rocket which was
 applied on the ground by the gases . This force is
 enough to push the rocket in the air and thus the
 rocket gets launched.
         What is the Action?
Solid Fuel Rockets

 Fuel in solid form burns and is converted to hot gasses.
 Hot gasses expand and create high pressure.
 Pressure escapes out nozzle, pushing against air and
  rocket body equally.



- Reaction: Rocket moves forward, as gasses move backwards
           Liquid Fuel Rockets
 Work on same basic principles as solid fuel.
 Carry liquid fuel and oxygen.
 Unlike solid fuel, liquid fuel can be regulated to
  control thrust.
           Space Shuttle
*Liquid Fuel and
Oxygen tank feeding
Engines

*Solid Fuel Rocket
Boosters
                   Propulsion
 All spacecraft need to reach about 17,500 miles per
  hour to get into orbit.
 Thrust is used to push the spacecraft this fast.
 Thrust is produced by burning a rocket fuel with
  oxygen.
 If there is not enough thrust the spacecraft will fall
  back to earth due to gravity.
Parts of a rocket
              Advantage and Uses
1. Military : Some military
weapons use rockets to
propel warheads to their
target.
2. Science & Research:
Sounding rockets are
commonly used to carry
instruments that take
readings from 50 kilometers
to 1,500 kilometers above
the surface of the earth.
 3.Space flight: Larger rockets are normally launched from a
  launch pad which serves as stable support until a few second
  after ignition . Due to their high exhaust velocity 2,500 to 4,500
  m/s. Spacecraft delivered into orbital trajectories become
  artificial satellites which are used in commercial purposes.
Disadvantages:
1.Noise
2.Pollution
3.Lot’s of fuel burns or wastage of fuel
                    Future
 Construction Begins on 1,000-MPH Rocket Car
                  Bloodhound SSC
Bloodhound SSC is the name of a project aiming to
break the land speed record with a pencil-shaped car
powered by a jet engine and a rocket designed to reach
approximately 1,000 miles per hour (1,609 km/h). It is
being developed and built with the intention of
breaking the land speed record of 763mph of Thrust
SSC by the largest ever margin.
Bloodhound SSC
References:
1. www.google.com
2. www.wikipedia.com
3. www.wikianswer.com
4. www.wired.com/autopia/2011/02/construction-
    begins-on-1000-mph-rocket-car/
5. www.en.wikipedia.org/wiki/Rocket#Types


				
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posted:7/13/2012
language:English
pages:20
Description: term paper of mechanics in engineering