Safety Improvement for Occupants in Rollovers

            The objective of this project is to research accident data, computer modeling and dynamic rollover testing to determine how to best protect occupants in rollovers.  The purpose is to provide the basis for improved rollover safety standards.  The research was initially conducted at ASRI and subsequently at the George Washington University. The funding support was from  a generous gift of the Santos Family Foundation and, subsequently, from the Australian Research Council under management of the University of New South Wales.

The initial research under this project involved rollover testing of the C/K pickup.  Click here to see a rollover test in real time.  Click here to see a slow motion video of the initial dummy motion during rollover the rollover test. 

More recently, the ASRI research has added dynamic rollover testing of recent model vehicles.  Eleven different makes of vehicles have been subjected to dynamic rollover testing on the Jordan Rollover System (JRS).  Click here to see the results of the dynamic rollover test project. 

Research in computer modeling of rollovers provides a basis for understanding the injuries that occur and how best to prevent them. Click here to see some computer generated images of occupant motion in rollovers.

Progress has been reported in the following reports and presentations.  Click on the PDF icon to view the document.

Opportunities for Injury Reduction in Rollover Crashes, A. Eigen and K. Digges, PaperESV 15-0284, 2015
Sensitivity Study of Vehicle Rollovers to Various Initial Conditions, Research for ASRI by Fadi Tahan and others, March, 2010

Investigation of Different Roof Strengthening Methods to Gain an Elastically Responding Roof in Static and Dynamic Rollover Tests, Research for GWU by Alexander Schmitt, August, 2009

Modeling Neck Compression in Rollovers, by Cristina Echemendia, GW University Report, April 2009
Far-side Sled Test MADYMO Validation, by Cristina Echemendia and Kennerly Digges, GW University Report, April 2009
Injuries in Rollovers by Crash Severity, by K. Digges and A. Eigen, Paper  ESV 07-0236, 2007
Effects of Roll Rate and Tripping Velocity on Occupant Kinematics During Rollover, Master's Thesis for GWU by Said Dahdah, 2005
Injury Risk from Objects Impacted Before and During Rollovers, by K. Digges & A, Eigen, Paper at IRCOBI, 2006
Injury Risk from Objects Impacted Before and During Rollovers by K. Digges & A, Eigen, Presentation at IRCOBI 2006
Severity Measurements for Rollover Crashes, by K. Digges & A, Eigen, Paper at IRCOBI 2005
Severity Measurements for Rollover Crashes, by K. Digges & A, Eigen,  Presentation at IRCOBI 2005
 Rollover Crash Mechanisms and Injury Outcomes for Restrained Occupants by A. Eigen, NHTSA Report DOT HS 809 994, July 2005
Hugh DeHaven: Still Relevant for Rollovers by Carl Nash, Presentation to SAE Government Industry Meeting February 5, 2009 - (Videos below)

 Video of VW Jetta and Pontiac G6 Rollover Tests on JRS

 Video of Steering Induced Rollover

 Video of Volvo XC 90 Rollover Tests on JRS

Modeling Neck Compression in Rollovers, by Cristina Echemendia, GW University Report, April 2009
Far-side Sled Test MADYMO Validation, by Cristina Echemendia and Kennerly Digges, GW University Report, April 2009
Video of Pickup Drop Test from 6 inches - 1st Drop
Video of Pickup Drop Test from 6 inches - 2nd Drop

 

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