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Validation of the Circular Trajectory Assumption in Critical Speed
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 11, 2005 by SAE International in United States
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The critical speed model is a tool used by accident reconstructionists to determine vehicle speeds. One assumption implicit in the model is that when in a critical speed yaw, the vehicle's center of mass travels in a circular arc. The validity of this assumption was investigated by comparing the results obtained by manually measuring the tire marks, assuming them parallel to the center of mass path, and fitting a polynomial. The results indicate that the assumption of a circular path is reasonably accurate.
- Samuel Delmas - IFMA - Institut Francais De Mechanique Advancee, Les Cezeaux
- Wade Bartlett - Mechanical Forensics Engineering Services, LLC
- Oren Masory - Mechanical Engineering Department, Florida Atlantic University
- Bill Wright - Institute of Police Technology and Management, University of North Florida
CitationMasory, O., Delmas, S., Wright, B., and Bartlett, W., "Validation of the Circular Trajectory Assumption in Critical Speed," SAE Technical Paper 2005-01-1189, 2005, https://doi.org/10.4271/2005-01-1189.
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