Group B01 Tarek Yakub – 4133137 Fahad Aljenaei – 4290975 Danish Qureshi - 417235.

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Presentation transcript:

Group B01 Tarek Yakub – Fahad Aljenaei – Danish Qureshi

Project Background Major Electrical Components Pulse Width Modulation (PWM) Remote Control Potentiometer Major Mechanical Components Creating a body that can float on water Fans to propel boat forward

PWM (IC 555 timer) How it works? Uses square voltage pulses that power a motor The amount of power applied to the motor depends on the duration of each pulse The higher the duration of the pulses results in an increased average power applied to the motor

Theoretical Circuit

Actual Circuit & Connection

The Boat The boat was made out of swimming noodles held together using metal bars Holes were drilled through a piece of wood to hold the motors in place and mounted on the boat using metal brackets and screws

Propulsion The boat is powered by two computer fans which have been attached to the output shafts of 6V motors

By adjusting the potentiometer, the boat is able to move forward at variable speeds. By varying the speed of one motor at a time allows the boat to turn left or right

The Boat in Motion This video shows the boat slightly turning right and left, as well as slowing speed while moving forward

Complications Building the circuit Low voltages across the motor Not enough current going into the motor Solutions to these problems Changed one of the capacitors and removed one of the resistors To deliver the proper amount of current into the motor (1.8 A) Changed Potentiometer (from 100 kOhms, to 10 kOhms because resistance was to high) This was found through trial and error (at 100 kOhms the current was 428 mA, at 10 kOhms the current was 2.4 A, 6 times greater!) Used multi-sim to aid in problem solving Choosing a PWM over the variable resistor due to heating up and also make use of IC 555 timer as we learned

Improvements/Modifications Larger Fans More powerful motors To increase speed Place the fans further apart To allow the boat to turn easier Wireless control

Thank You