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Hands-Off Animation
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English
Abstract
Any reconstruction of vehicular impact produces numerical data which forms a meaningful but abstract description of the event. As a better means of forensic presentation, the same data might be, with some augmentation, developed into an animation of the event.
The most common impact event, the simple planar collision of one two-axle vehicle with another or with a fixed object, with possible spin due to impact, is the case treated by the widely accepted CRASH type of computer program. A specific CRASH-based reconstruction program recently has been augmented to accept additional data descriptive of the involved vehicles, the environment, some approach maneuvers, and an observer viewpoint.
On completion of this specification a digital file results which, when suitably processed, will produce the animation without further operator input. The final processing is highly efficient because the animation is produced entirely by recorded command, without further human intervention. Such cost reduction makes animation affordable as a routine follow-on to reconstruction of the ordinary single or two-vehicle impact.
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Citation
Fonda, A., "Hands-Off Animation," SAE Technical Paper 930900, 1993, https://doi.org/10.4271/930900.Also In
References
- Bound volumes SAE P-193, SP-733, SP-777, SP-814, SP-853, and SP-907, 1987-1992
- Bohan T L “Computer-Aided Accident Reconstruction: Its Role in Court,” SAE 910370 , in SP-853 Feb 1991
- Hull W C Newton B E “The Animation Computer as a 3-D Reconstruction Tool,” SAE 920754 , in SP-907 Feb 1992
- Krieger R “Now Showing at a Courtroom Near You…,” 92 96 Dec 1992
- McHenry R R “The CRASH Program - A Simplified Collision Reconstruction Program,” Motor Vehicle Collision Investigation Symposium, MVMA, 6-10 Oct 1975; see also SAE 750893 13 17 Oct 1975
- Fonda A G “CRASH Extended for Desk and Handheld Computers,” SAE 870044 Feb 1987
- Fonda A G “Crush Energy Formulations and Single-Event Reconstruction,” SAE 900099 , in SP-814 Feb 1990
- Fonda A G “Physical Models for Crush Energy Evaluation in Oblique Impact,” Canadian Multidisciplinary Road Safety Conference VII, Vancouver, June 1991
- Fonda A G “Post-Impact Spin,” SAE 930653 March 1993