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Folding Wall Mechanism

Possible Design Choices:

1. Sliding Wall

Comments

• does not achieve 75% volume reduction

• heaviest design

• stronger relative to other possible design solutions (Maximum stress is 12.3 MPa)

2. Scissor Lift

Comments

• panels are to be inserted in between the columns

• achieve 80% volume reduction

• manual removal of panels would be troublesome

• not strong enough (maximum stress is 133 MPa)

3. Horizontal Folding Wall

Comments

• horizontal folding mechanism

• achieve 75% volume reduction

• easy to collapse

• experiences stress that is greater than its yield strength (maximum stress is 4.815 GPa)

• not strong enough (large deformation occurs)

4. Two bi-folding Walls

Comments

• vertical version of the folding wall mechanism with two bi-folding walls

• achieve 75% volume reduction

• need to add support columns on the ceiling for reinforcement when extended

• too much overhang when collapsed, which results in large deformation (8.9 cm) due to 2G vertical force

5. Final Design (One Single-folding Wall and one Bi-folding Wall)