trainer bike test benches
DESCRIPTION
various test benches for a trainer bikeTRANSCRIPT
Publikation von Studierenden der FH OÖ
MPT1 – test concepttrainer bike
Abraham, Hannes Kalteis
Page 2
Agenda
• Introduction
• Target group
• Test benches
Page 3
Agenda
• Introduction
• Target group
• Test benches
Page 4
Trainer bike
Mini saddleSeatpost length: 22 cm
Steel fork
Steel frameEVA polymer tires
Page 5
Trainer bike [2]
• Total weight: 2093 g
• No pedals
• no brakes included (optional)
• Footrests
• Weight limit: 25 kg (minimum specification)
• Designed for ages 1-5 yrs
• Warranty: 2 years
Page 6
Comparison with tricycle
• Learn how to balance on a bikeAbility to skip training wheels
• Stable with feet on the groundNo fear of falling down
• No need to pedalThe only thing you have to add to have a „real bike“
Page 7
Page 8
Agenda
• Introduction
• Target group
• Test benches
Page 9
Target group
FUN
• Children
They use it
Page 10
Target group
• Parents
The ones who decide and buy the product
Safety
Learning
Flexible height
Light-weight
Page 11
Agenda
• Introduction
• Target group
• Test benches
Page 12
• Destructive testing of the frame
Weight Test
Page 13
Weight Test (short term test)
• Tolerable weight: 25kg
• Cilinder applies pressure and measures until the frame breaks
• Piezo sensors added in different zones of the frame
Page 14
• Simulation of a crash directly to the front wheel
Crash Test
Page 15
Crash Test (special event test)
• Crash intensity can be increased adding weights
• Analyze weak points of the frame after test.
• Photoelectric sensors measure the speed, and calculate the force of the impact
Page 16
• Simulation of a long term usage of the bike
Long Term Test
Page 17
Long Term Test
• Rollers with different surfaces move and simulate different ground types
• Different speeds are applied• Upper cilinder simulates the
average weight of a child• Climate chamber recreates
different environments and temperatures
Cold
Hot
Rain
Dust
Salt
Page 18
Long Term Test
• Specs tested:Life time of the wheel material
Fatigue test of the frame
Paint Quality
Bearings life time
• Sensors:Camera measures the quality of the surface of the wheels and the paint quality.
Piezos added in different zones of the frame
Cameras positioned in the weakest joints of the frame