Download - Rc Submarine Final report
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RC SUBMARINEINTRODUCTION: Submarine is a watercraft which is capable of
underwater independent motion. In real life it is mainly used for
military purposes and also for civil purposes like tourism,
exploration, oil and gas platform inspections and pipeline
surveys.
Our aim is to make a wireless remote controlled model of
submarine whose motion we can controlled from outside of the
water with the help of a transmitter and receiver.
PRINCIPLE : A submarine basically works on Archimedes'
principle or Buoyancy force law which stated in different forms:-
1) Any floating object displaces its own weight of fluid.
2) Any object, wholly or partially immersed in a fluid, is buoyed
up by a force equal to the weight of the fluid displaced by the
object.(For more general objects, floating and sunken, and in
gases as well as liquids,this principle may be stated in terms of
forces).
3) The weight of the displaced fluid is directly proportional to
the volume of the displaced fluid (if the surrounding fluid is of
uniform density). In simple terms, the principle states that the
buoyancy force on an object is going to be equal to the weight
of the fluid displaced by the object.
TYPES OF SUBMARINE
1. Submarine which use Static Diving method to go into the
water. In this method a ballast tank is used (i.e they are
able to vary their weight by intake and expel of water) to
dive and come out of water. They are able to hover at a
place.
2. Submarine which use Dynamic Diving method to go intothe water.This type of submarine uses thrust and
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elevators to go in and out of water. These are not able to
hover at a place.
We made a RC SUBMARINE which works on static diving
method because this method provides better control.
PROJECT DETAILS:-
1. SHELL:- The shell can be constructed of a variety of
materials, including PVC and ABS(but we used pvc pipe
due to their easy availability). Aside from the bonding
agents recommended by manufacturers you can also use
silicone and acrylic adhesive which will bond different
types of plastics together including acrylics, it even bondsplastics to glass.
2. HULL:-hull is the main body of the submarine which we
made from PVC pipe. It contains the ballast tank,
batteries, receiver etc.
3. BALLAST TANK: -The ballast tank is used to make
submarine to go in or to come out. Our ballast tank is
made up of a syringe which is connected to a motor withthe help of a screw. Both syringe and motor are fixed and
only screw is capable to move. So when motor moves in
anticlockwise direction piston connected to screw moves
outward and water go inside and when motor moves in
reverse direction piston moves forward and water is
expelled. We made a circuit to change the direction of
rotation of motor.
MATERIALS USED:
1. 50cm PVC pipe
2. end caps- 2 pieces
3. aluminium sheets
4. steel strips
5. watercooled motor
6. watercooled ESC(electronic speed controller)
7. sillicone sealant
8. bond quick
9. roller ballpen refills
10. 50ml syringe11. Fuelpipe
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12. high torque motor
13. nut bolt
14. grease
15. high torque servos
16. styroform
SOME TECHNICAL SPECIFICATIONS:-
1. PROPELLING MOTOR:-
ADS300 Water-cooled Brushless Out runner
3000kv 300w
Motor Size: 400 Class
Speed: 3000rpm/v
ESC Required: 30A
Voltage Range: 7.2v~11.1v (2s~3s Lipoly)
No Load Curr: 1.1A
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Max Load: 24A
Dimensions: 23.8 x 45
Front Mounting Hole Distance: 16 & 18mm
Front Mount Thread Size: M2.5
Shaft Diameter: 3mm
Shaft Length: 14mm
Weight: 43g
2.WATERCOOLED ESC:-
Birdie 50A Brushless Boat ESC w/3A BEC
3. PROPELLER:-
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Prop Nylon 1.4 x 38
4. HIGH TORQUE MOTOR:-
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SUBMARINE AT ITS FINAL STAGE
PRACTICAL APPLICATION:-
1. Wireless submarines could be deployed on the coasts to keep an
eye on enemies.
2. They can be used to find blockages in drains.
3. Can be used to keep a tab on the life of organisms in rivers &seas.
4. Can be used to do underwater wildlife photography.
PROBLEMS FACED:-
1. Problem of end cap:-diameter of our pvc pipe is 5inches and
maximum diameter of end cap that are available in market is
4inches.We resolves this problem by wrapping cycle tube around those
caps and fixing those tube tightly.
2. Main problem that we faced is to make our whole system as a
watertight .We resolves this problem by using silicone selent on all the
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holes and joint.
3. Problem to change the direction of that motor which is connected to
ballast tank. This was not possible to control by wireless remote. For
that we made a circuit and used a three way switch.
4. We had to accurately measure the volume of our submarine and
make its weight accordingly.
5. Using watercooled motor and ESC, we had no prior experience of
using them.
6. Last problem is to arrange all our component (motors, esc, ballast
tank,battries,servos etc.) permanently into shell .
FUTURE ASPECT:-
1. To taste successful testing of our first model.
2. To make a new model that is fully wireless.
3. Use better material like fibreglass and work on aerodynamics.
4. To fit a SONAR in our submarine.
USEFUL LINKS:-
1. http://express.howstuffworks.com/express-submarine.htm
2. www.rc-sub.com
3. www.caswellplating.com/ rc-modeling.html
4. www.hobbyking.com
5. www.subcommittee.com
http://express.howstuffworks.com/express-submarine.htmhttp://www.rc-sub.com/http://www.rc-sub.com/http://www.rc-sub.com/http://www.rc-sub.com/http://www.rc-sub.com/http://www.caswellplating.com/rc-modeling.htmlhttp://www.caswellplating.com/rc-modeling.htmlhttp://www.caswellplating.com/rc-modeling.htmlhttp://www.hobbyking.com/http://express.howstuffworks.com/express-submarine.htmhttp://www.rc-sub.com/http://www.caswellplating.com/rc-modeling.htmlhttp://www.hobbyking.com/