Simulation Of Vehicle's Handling Stability And Ride Performance Base On ADAMS

With the development of the vehicle technology ,and concerning about the car performance, the competition of the car industry becomes more and more intense. In the exploitation of the production, one of the main methods is to use the virtual prototyping technology to exploit the production of car, which may deeply shorter the competition ability, lessen the expenses, improve the quantity, and enhance the competition ability. Based on the multi-body dynamics theory, exploited by Mechanical Dynamics, Inc, the ADAMS is a type of software of dynamic analysis of mechanical system.At present, many main car corporation and their accessory suppliers use the ADAMS an their main software of dynamic analysis of mechanical system.The article builds a whole vehicle model that contains suspension, stabilize bar, steering, body, powertrain, tires and road etc by using ADAMS/Car. Appling the full vehicle model, have performed Steady static circular test simulation, Returnability test simulation, Steering wheel angle step input simulation, Steer wheel angle pulse input simulation, Pylon course slalom test simulation and steering efforts test procedure simulation. The stability was evaluated According to the National Evaluation Index and Evaluation method on the Vehicle Handling and Stabiliy.Using ADAMS/Car Ride, build the model of road surface based on power spectrum density of road surface. According to the national standard of the ride test, the ride simulation is run on the random road and pulse road through the four-post testing.Through the results comparing between the vehicle test and simulation of steady static circular test, proved the modeling and ADAMS software's accuracy.