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Comparison of the Jordan Rollover System With an Over the Ground Rollover

[+] Author Affiliations
John Hutchinson

Friedman Research Corporation, Santa Barbara, CA

Keith Friedman

Friedman Research Corporation, Austin, TX

Paper No. IMECE2008-68876, pp. 61-66; 6 pages
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 16: Safety Engineering, Risk Analysis and Reliability Methods
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4877-7 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME


The Jordan Rollover System (JRS) is a physical test apparatus which evaluates vehicle rollover protection performance by dropping a rotating vehicle with a stationary CG position onto a moving road bed. This test configuration permits control and monitoring of the rollover test conditions, and allows the rollover test to be conducted in a limited space. A finite element study was conducted to determine how well the JRS test replicates the impact environment of an equivalent over-the-ground rollover event. In particular, the effects of the finite mass of the test roadbed and the test apparatus constraints were examined. The finite element study showed that roof intrusion measures occurring during the JRS test do not vary significantly from those resulting from an unrestrained over-the-ground rollover impact with the same initial conditions.

Copyright © 2008 by ASME



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