This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Rear-End Barrier Impact Simulation Model for Unibody Passenger Cars
Annotation ability available
Sector:
Language:
English
Abstract
The simulation model presented in this report is capable of analytically predicting the dynamic responses of the unibody passenger car during a rear-end barrier impact. A 5 degree-of-freedom system consisting of a rigid barrier mass, four vehicle masses, and seven nonlinear resistances represents the vehicle impacting the barrier, or vice versa. Five equations of motion are derived and ten initial conditions are specified for the model to define an initial-value problem. Due to the complexities of force-deformation characteristics of the resistances, the solution is derived by a numerical method. A computer program in PL/I for the IBM 360/65 is developed to perform the solution. Output data are available in both numeric and graphic forms. The simulation results are in good agreement with the results of the actual barrier test. Examples of application are given to demonstrate the usefulness of the simulation model in investigating various problems of practical interest.
Recommended Content
Topic
Citation
Lin, K., "A Rear-End Barrier Impact Simulation Model for Unibody Passenger Cars," SAE Technical Paper 730156, 1973, https://doi.org/10.4271/730156.Also In
References
- Lin K. H. “A Mathematical Simulation of Frontal Barrier Impact.” Research Report VR-138 GMR Warren, Michigan Apr. 27 1970 Kamal M. M. “Analysis and Simulation of Vehicle to Barrier Impact.” SAE Transactions 79 1970 paper 700414