Simulation of Vehicle Impact with the Texas Concrete Median Barrier. Volume I. Test Comparisons and Parameter Study.

摘要

The Highway-Vehicle-Object Simulation Model (HVOSM), a computer program developed at Cornell Aeronautical Lab. (CAL),has been modified with generous help from CAL and used to successfully simulate a vehicle impacting the Texas Concrete Median Barrier (CMB) at speeds ranging from 50to 80mph and angles ranging from 5to 25degrees. Comparison of simulation and test results are presented both visually and quantitatively in the form of computer generated drawings of the vehicle during impact along-side corresponding frames from the high speed film and plots relating predicted and measured accelerometer readings. Following the successful simulation of the full scale tests, a parameter study on impact conditions was conducted. The results of all simulated impacts with the Texas CMB are presented graphically with regard to a severity index which quantifies the severity of each crash. The index is based on vehicle accelerations. (Author Modified Abstract)