BREAKOUT EXERCISE

  1. Complete DOE 1, varying counterweight and flush volume.
  1. Use graduated cylinder to measure the maximum water seal that can be maintained in the trap door.
  2. Gage and record performance at each setting by observing the number of ping pong balls that can be successfully flushed.
  3. Calculate Performance Score.
  1. Plot results on Contour Plot to determine most promising area of design space.
  2. Select 3-5 new points in your refined design space for DOE 2 and repeat steps A-C above.
  3. Use results of DOE 1 & 2 to decide optimal settings for Counterweight and Flush Volume.
  4. Demonstrate performance in team competition.

DOE 1

Counterweight
(# of washers)

FV
Flush Volume
(ml)

WS
Water Seal (ml)

PP
Max in ping pong balls (#)

Performance Score
= 3×
PP + WS - FV/5

3

200

3

500

3

200

3

500

6

350

DOE 2 (You decide number of washers and flush volume based on DOE1)

Counterweight
(# of washers)

FV
Flush Volume
(ml)

WS
Water Seal (ml)

PP
Max in ping pong balls (#)

Performance Score
= 3×
PP + WS - FV/5


DOE 1

Sketch contour plot of results from DOE 1 and decide on new experimental points for DOE 2.


DOE 2

Sketch contour plot of results from DOE 1 and DOE 2 to decide optimal settings for team competition.