Limitation of Human Simulation Programs In Crash Reconstruction

Subjects related to ATB & ATB clones & the reconstruction and simulation of Occupants in vehicles and Pedestrians struck by vehicles
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MSI
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Limitation of Human Simulation Programs In Crash Reconstruction

Post by MSI »

The following are papers are on the Articulated Total Body (ATB) program as it related to Crash Reconstruction:
  • All these papers also relate to the MADYMO program and other 'hidden' versions of ATB marketed as 'multi-body' simulation options.
  • Main point is:
    • Occupant simulations "should be used in forensics and accident reconstruction only as a tool to assist in understanding gross occupant kinematics. Any results or conclusions drawn from an ATB application related to detailed occupant kinematics involve so many approximations, estimates, and assumptions that they must be recognized as not being compatible with sound engineering practices and principles and, therefore, not scientifically supportable".
Head Injury Criterion and the ATB
  • By Brian G. McHenry ©McHenry Software, Inc.
    Presented Sept 29, 2004 at the 2004 ATB USERS' CONFERENCE
    • ABSTRACT :This paper presents background on head injuries, head injury criterion and the use of the ATB in research and litigation to simulate occupant motions and calculate the head injury criterion.
      Also available in html format
Occupant Kinematics in Forensics: Evaluating the Appropriateness and Applicability of an ATB Application
  • By Brian G. McHenry ©McHenry Software, Inc.
    Presented April 25, 2002 at the 2002 ATB USERS' CONFERENCE
    • ABSTRACT: Since the advent of the PC and the availability of PC versions of the ATB computer program, the ATB has been frequently encountered as an accident reconstruction tool used for demonstrative purposes in litigation matters. This presentation will include discussion and presentation of some of the types of applications encountered. The presentation will also include discussion of the appropriateness and applicability of the ATB to specific forensic investigations.
      Also available in html format

LIMITATIONS OF ATB/CVS AS AN ACCIDENT RECONSTRUCTION TOOL
  • SAE paper 971045, James, M., Nordhagen, R., Warner, C., Allsop, D. et a
    Occupant simulation models have been used to study trends or specific design changes in “typical” accident modes such as frontal, side, rear, and rollover. This paper explores the usage of the Articulated Total Body Program (ATB) as an accident reconstruction tool. The importance of model validation is discussed. Specific areas of concern such as the contact model, force-deflection data, occupant parameters, restraint system models, head/neck loadings, padding, and intrusion are discussed in the context of accident reconstruction.
Additional information:
  • What is the ATB?
    Where can I obtain the ATB?
    CVS/ATB Occupant Simulation Model
    • The CVS/ATB (Crash Victim Simulator/ AAMRL Articulated Total Body Model) was developed by John Fleck while at Calspan Corp.and J&J Technologies, Inc. Orchard Park, NY 14127 (716-662-4294) for the Armstrong Aerospace Medical Research Laboratory Wright Patterson Air Force Base under Contracts F33615-75C-5002,-78C-0516 and -80C-05117 and also for the National Highway Traffic Safety Administration, U.S. Department of Transportation, Under Contracts FH-11-7592, HS-053-2-485, HS-6-01300 and HS-6-01410.
      Program Documentation: NHTSA Report Nos. DOT-HS-801-507 through 510 (Formerly Calspan Report No. ZQ-5180-L-1) available from NTIS (Accession nos. PB-241692,3,4 and 5), Appendixes A-J to the above (available from Calspan) and Report Nos. AMRL-TR-75-14 (NTIS no. AD-A014 816), AFAMRL-TR-80-14 (NTIS no. AD-A088 029), and AFAMRL-TR-83-073 (NTIS no. AD-B079 184). AAMRL-TR-88-007 (NTIS no. AD-A197 940), AAMRL-TR-88-009 (NTIS NO. AD-A198 726), AAMRL-TR-88-043 (NTIS NO. AD-A203 566).
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