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TEAM 8

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TEAM 8. Tom Darley Xiaofan Deng Irene Dongol Constance Gong Samantha Shen Samuel Zhao. Problem Statement. Design a system of space travel that is: Safe – for occupants and spectators Environmentally friendly - runs on solar energy - constructed with materials of no commercial value

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Presentation Transcript
slide1
TEAM 8

Tom Darley

Xiaofan Deng

Irene Dongol

Constance Gong

Samantha Shen

Samuel Zhao

slide2
Problem Statement
  • Design a system of space travel that is:
  • Safe – for occupants and spectators
  • Environmentally friendly
  • - runs on solar energy
  • - constructed with materials of no commercial value
  • Self-functioning
  • Able to ascend and descend a 7m tether
  • Within the size limit of 600mm x 600mm x 600mm
slide4
Mechanics
  • What does it do
    • The mechanical aspect of the project encompasses the drive system which is the backbone of the movement.
    • Within this system the gears manage the energy output from the motor and control the torque as well as speed of the system.
slide5
Rationale for choice
  • Gearing Ratio to favour Torque or Speed? we decided on torque rather than speed for several reasons ;
    • increased torque
    • higher speed could risk slippage
  • Our drive system is designed in an angled orientation
    • reduce the overall size of the vehicle
    • contributed to a centre of mass closer to the centre of the elevator
  • Choice of wheels or tank treads as the central contact point
    • addition of free spinning guide wheels as another means of increasing balance and stability .
slide6
How did you make it ?

- Combination of existing resources with other materials.

- Lego as a major resource / material

> modifications made to existing Lego parts as a means of

Integrating the two components of the system

slide7
Solar collection & Electronics
  • What does it do in relation to the project
  • How did you make it
  • Rationale for choice, Data and Demonstration
    • Connection method of two solar panels
    • Electric circuit
slide8
Solar Collection & Electronics
  • How Did we make it?
    • Product Circuit Board
    • Solder
slide9
Rationale for choice, Data and Demonstration
  • Connection method of two solar panels
    • Connect two panels in parallel
  • Electric circuit
    • Type of switches
    • LED
i v data of two connection methods
I-V data of two connection methods
  • Reasons for connect panels in parallel
    • Both two connection methods the max powers are similar
    • From the data sheet of motor, its working voltage is between 1.5 – 4.5V and the working current is between 0.15 to 1.4 A
slide11
Electric Circuit Diagram

S 1: A single-pole double-throw switch button which is used to control the whole circuit.

S 2

1

5

2

+

3

Solar panels

S 2: A double-pole double-throw switch button on the top of elevator, used to change the direction of current.

-

4

6

RL

Motor

Red LEDs: indicator lights. One of them will be bright when the device is off

Red LEDs

S 1

slide14
Chassis
  • The relationship with regards to our project .
  • Rationale of choice.
slide18
Conclusion
  • Evaluation
    • Strengths:
      • Solid chassis
      • Simplistic design
    • Possible improvements:
      • Stronger materials and construction techniques
      • Wheel mechanics
      • Gearing
      • Types of wheels
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