Computational Mechanics for ATV Safety
Chandra Thorbole, Ph.D.
ATV Safety SummitOctober 11th & 12th
Computational Mechanics in Crash Safety
Finite Element Methods
Multibody Dynamics
Occupant Protection
Video
ATV Safety SummitOctober 11th & 12th
Computational Mechanics for ATV Safety
Primary Prevention
Secondary Prevention
Rider Protection
Rollover stability &Handling
Characteristic
Injury Analysis andPrevention
ATV Safety SummitOctober 11th & 12th
ATV Rollover Types
GAO-10-418 Report, “All-Terrain Vehicles-How they are used,crashes,and Sales of Adult-Sized Vehicles for Children’s Use”, April 2010.
ATV Safety SummitOctober 11th & 12th
Real World Accident Research
Rollover Type : Forward Flip
Rider + Passenger
Injury : Neck Injury (Spinal cord involved)
Injury Mechanism : The metal rack impactedthe neck.
ATV Speed 6mph
Front Wheels: Locked
ATV Safety SummitOctober 11th & 12th
Computational Mechanics for ATV Safety
ATV Computer Model
Rider Model
Terrain (Environment)
Model
Successful ATV RiderInjury Prevention
ATV Safety SummitOctober 11th & 12th
Computational Mechanics for ATV Safety
ATV Computer Model
ATV Safety SummitOctober 11th & 12th
Sensitivity Analysis -Evaluation
Initial Speed 10mphDeceleration for soil trip 0.5 sec
Response : Rear Axle Lift
Factors 1. No of people on ATV (Rider ,Passenger)2. Ground Slope3. Rider Grip Hold (Time)
Factor combination (All High Level)
ATV Safety SummitOctober 11th & 12th
Mechanics
Shift the moment about point “a”
Video
ATV Safety SummitOctober 11th & 12th
Evaluation
Video
ATV Safety SummitOctober 11th & 12th
Future Work
Rider Model for Injury Analysis&Helmet effectiveness
ATV Safety SummitOctober 11th & 12th
Thank You
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