National Crash Severity Study - Quality Control. Task V: Analysis to Refine Spinout Aspects of CRASH

摘要

The objectives of the research were to further develop the angular momentum solution made for the CRASH program, to evaluate an alternative approach for the analysis of spinout trajectories based on the use of an average drag factor and to revise the documentation in the CRASH User's Manual, as required. It was also concluded that, because of the large number of interacting variables in a vehicle spinout, the development of the concept of an 'average drag factor' approximating the linear and and angular velocities of a vehicle at separation from a collision was not practical. A revision of subroutine OBLIQE of CRASH3 was developed to improve the accuracy of the calculation with which the angular momentum at separation is approximated.