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Linear and Rotational Motion Analysis in Traffic Crash Reconstruction

Linear and Rotational Motion Analysis in Traffic Crash Reconstruction

$ 35.00

Linear and Rotational Motion Analysis in Traffic Crash Reconstruction
by Orion P. Keifer, Richard V. Conte and Bradley C. Reckamp

Crash reconstructionists are commonly faced with vehicle collisions with post-impact rotation, yet few are knowledgeable about the pitfalls and analysis opportunities this rotation presents. Generally, the rotation is simply ignored and the drag coefficient is adjusted by some amount to account for the rotation. While this approach is adequate for some crashes, it is totally inappropriate for others.

IPTM’s latest book, Linear and Rotational Motion Analysis in Traffic Crash Reconstruction, examines rotation and its implications in reconstruction. Written by 3 Professional Engineers, it is a comprehensive text full of diagrams and formulas designed to provide you with the background to properly evaluate and analyze crashes with post-impact rotation.

 The authors begin with a summary of the physical principles of mechanics required to perform an accurate reconstruction. From there, they discuss topics such as the effects of rotation on linear and rotational drag factors, limitations of analysis methods in crashes with post-impact rotation, post-impact tire forces on the rotating vehicle, and pre-impact speed analysis based on post-impact rotational displacement. They also discuss situations where linear analyses are inappropriate and give you false answers.

The book includes the following chapters:

  •  The Physics of Traffic Crash Reconstruction
  •  Inter-relationship of Linear and Rotational Momentum Exchange
  •  General Rotational Momentum Equations
  •  Rotational Friction
  •  Rotational and Linear Motion Interaction
  •  Staged Crashes and Case Studies
  •  Conclusions

 About the authors:

Orion P. Keifer, P.E., a Professional Engineer registered in California, Florida, Georgia and Alabama, holds Master of Science degrees in both Mechanical Engineering and Biomechanical Trauma. He is a founding partner of the Applications Engineering Group, Inc. (AEGI), a forensic engineering and crash reconstruction firm.

Richard V. Conte, Ph.D., P.E., holds a Ph.D. in Mechanical Engineering and is a registered Professional Engineer in the State of New York. His areas of specialization include Thermal Sciences, HVAC and Alternative Energy. Mr. Conte is currently an advisor and instructor for the School of Engineering at the University of North Florida.

Bradley C. Reckamp, P.E., holds a Bachelor of Science degree in Mechanical Engineering and is a licensed Professional Engineer in the State of Florida. Mr. Reckamp is currently a forensic engineer/crash reconstructionist and has investigated hundreds of vehicle crashes and participated in numerous full scale test crashes.

Specifications: 232 pages; 8½”x11"; coil bound; Publisher: IPTM (April 2007)

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