| In recent years, the auto-industry has become basically industry for Chinese national economy and undergone rapid progress. Many advanced technologies including new materials, electrical-controlling and network are applied to this area .Several rounds of trials are needed before a new product can be determined, due to its design complexity. Thus large amount of money and time had to be invested in new products. But using CAD, establishing the Auto model using special software to simulate the driving situation and aid Auto design, which have quite economic purpose.This paper exhaustively analyzes the computer virtual simulation design of the structure and damper controller about The Macpherson Suspension. The Mechanical System Virtual Simulation Technology is a cutting-edge field with the development of computer science. Its most important part is kinematics and dynamics of machinery. It also includes the 3-D CAD model technology, the mechanical-electrical-hydraulic controlling technology, the optimum designing, etc.This paper explains the suspension by Adams -a Virtual Prototyping Technology software, which analyzes the change of suspension parameter by building the 3-D macpherson suspension model and the road drive when driving, then optimizing analyzing according to the wheel slipping demand.Secondly, the damper-controller is simulated using Matlab software, for reducing vibration and interference according to change damp. The semi-active suspension control system is built in Matlab/Simulink , using Fuzzy Logical Toolbox (Mamdani method) and analyzed the car vertical acceleration.For using The Computer Virtual Simulation Technology , it can aid product design, reduce the R&D period and cost and get the best and the most novel products.
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