Study on the Method to Simulate the Service Life of Vehicle Based on Biological Population

Based on the similarity between the regularity for change of technical condition of vehicle and biological population, the paper builds a simulation model on the overall technical state of system vehicle, and hence sets up a state transition equation of vehicle service life and a transition equation of vehicle accumulated mileage to measure the number of retired vehicles in a system and study when the vehicle is retired and the quantity of retired vehicles. In the end, the paper verifies the practicability of this method through a case.