Testing Criteria

Designed by Nghia (Wilson) Ly, Caleb Mayer, Daria Frame

Testing Criteria: Based on Design Specifications

• 1. Performance

  2. Safety

  3. Durability and Maintenance

Need to Know For Each Criteria:

• 1. Performance:

     1. Does the bike and each individual component work?

     2. Is it easy? Hard?

        1. For age range and older?

     3. What type of activity is the bike best for?

• • • 1. Speed, exercise, leisure?

• 2. Safety:

• • 1. Frequency/likelihood of falling?

    2. Pain level after falling?

       1. How hard is average hit?

       2. Effect of speed?

    3. How much weight can the bike and individual components hold?

• 3. Durability and Maintenance:

• • 1. How much do crashes affect the bike and its individual components?

       1. Do pieces fall off? Where? How?

Testing Methods For Chosen Criteria:

All of the tests should be in consideration of ages. Names and ages will be recorded.

Front Steering

Testing for:Maneuverability

Tests:

-Ride bike on various terrains and get feedback in how easy or difficult it was to use. Do this with various ages. Qualitative.

Rear Fork

Testing for: Weight capabilities ( Durability)

Tests:

-Put weights in a backpack and monitor ability to operate. Difficulty.

-Leave weights on seat for several hours. Measure distance of rear fork from ground before and after. This will tell whether or not the bike will go back to normal after long periods of use.

“Caster” Pivot Point

Testing for: Weight capabilities, Durability

Tests:

- See “Note”. Get a feel for the resistance or difficulty of movement with various weights. Does weight even seem to have an effect on this? Qualitative.

-repeated use- ‘long lastingness’ of the bearings

Frame Structure

Testing for: Comfort

Tests:

-Various people will sit on and ride the bike, then answer questions about how it felt. Things like placement of footrest, motion, etc. Qualitative.

Footrests

Testing for: Traction, Durability, Difficulty

Tests:

-Use strips of grip material separate from what is placed on bike, and place them on even ground. Place various weights on the material and measure the force needed to move the weights. Quantitative.

-When is there a noticeable deterioration in the grip tape? Count number of uses as every time the feet are removed from the bike and then replaced. Quantitative.

-How much more difficult is the bike to operate without grip tape than with grip tape. Difficulty.

Note: On each component discussing weight capabilities, it will be one experiment. Weights will be hung or laid on the seat of the bike and under ‘Test’ for each component, what needs to be measured is listed.

Testing Criteria Table