Model making
Task
Tesla brings you the challenge to design a strucuture similar to “The leaning tower
of Pisa” using ice cream sticks and adhesives that can sustain the mentioned load,
satisfying the understated constraints.
Material Provided
1.
2.
3.
4.
5.
6.
Ice – Cream sticks
Adhesive
Ruler
Cutter
Marker pen
Rubber bands
Arena Specifications
1. The arena consists of a groove with dimension 150 mm * 150 mm as shown
in the figure below.
2. It should be noted that base area of tower and arena is same so as to fit the
tower in arena.
Problem Statement
1. The total height of tower measured vertically should be 750 mm to 850 mm.
2. The super structure of tower can be of any shape only constraint is that
substructure must be cube of dimension 150 mm * 150 mm * 150 mm
3. The height below the base is 150 mm.
4. The top most surface of the tower must be parallel to the base.
5. The area of cross section at any horizontal section of the tower should not
exceed the area of base.
6. The base dimension of the tower must be 150mm * 150mm.
7. The minimum inclination of tower is 5 degree.
2
8. Top surface can be of any dimension that is equal to or less than base
dimension.
9. Top surface must be provided with a support so that slipping of load can be
avoided while testing (as shown in figure).
Disqualification criterion
1. The tower fails to satisfy any of the constraints specified above will be
disqualified.
Testing
3
1. Teams will be given 5 minutes to make their final changes in their tower
before testing, and once the changes are done, the tower will be weighed
(W) and its dimensions are noted. After that no changes are allowed.
2. The tower will be placed in the groove provided as shown in the figure 1.
3. Loads are placed on the center of horizontal top surface of the tower by one
of team member. Final load (L) is the maximum load taken by the tower just
before the failure of any member.
4. The angle of inclination (θ) will be measured by taking cosine inverse of
ratio of vertical height (P) to the length of the tower (H) (as shown in
figure).
Judging Criterion
1. θ = Angle of inclination of the tower from vertical (considered upto 3
decimal points).
2. W = Self weight of the tower (considered upto 3 decimal points).
3. L = Load that tower can bear just before failure.
4. 100 points will be awarded to the team with the highest value of θ, zero
points to the team with the lowest value of A, and all others will be awarded
points based on linear interpolation between these two extremes.
5. 100 points will be awarded to the team with the lowest Self weight (W), zero
points to the team with the highest value of W, and all others will be awarded
points based on linear interpolation between these two extremes.
6. 100 points will be awarded to the team with highest value of L, zero points to
the team with the lowest value of L, and all others will be awarded points
based on linear interpolation between these two extremes.
7. Score of a team is the sum of the points based on these criteria.
Judges decision shall be final and binding on all.
4