Shock Absorber Modeling and Simulation Based on Modelica

The purpose of shock absorbers are to dissipate impact energy, and control tire force variation, the shock absorber has great influence on both ride and handling performance of vehicles, and a great many previous researches have been done on modeling and simulation of the shock absorber. In this paper, a detailed model of shock absorber is established, which contains rebound chamber, compression chamber, piston valve assembly, base valve assembly and so on. Those models are built using modelica language, modelica is a language for modeling of physical systems, designed to support effective library development and model exchange. It is a modern language built on a causal modeling with mathematical equations and object-oriented constructs to facilitate reuse of modeling knowledge.