TEAM 8

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# TEAM 8 - PowerPoint PPT Presentation

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
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
• Self-functioning
• Able to ascend and descend a 7m tether
• Within the size limit of 600mm x 600mm x 600mm
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.
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 .
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

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
Solar Collection & Electronics
• How Did we make it?
• Product Circuit Board
• Solder
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
• 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
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

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