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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TEAM 8

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Team 8

TEAM 8

Tom Darley

Xiaofan Deng

Irene Dongol

Constance Gong

Samantha Shen

Samuel Zhao


Team 8

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


Team 8

Our Design


Team 8

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.


Team 8

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 .


Team 8

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


Team 8

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


Team 8

Solar Collection & Electronics

  • How Did we make it?

    • Product Circuit Board

    • Solder


Team 8

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


Team 8

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


Team 8

Chassis

  • The relationship with regards to our project .

  • Rationale of choice.


Team 8

Computer-Aided Design


Team 8

Conclusion

  • Evaluation

    • Strengths:

      • Solid chassis

      • Simplistic design

    • Possible improvements:

      • Stronger materials and construction techniques

      • Wheel mechanics

      • Gearing

      • Types of wheels


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