Study on Mechanism Automation Design: Four-Bar Linkages Design and Simulation Based on Complex-Vector Theory

To achieve the dimensional synthesis of planar four-bar linkages, it established the numerical atlases of coupler rotation-angle operator harmonic characteristic parameters and coupler rotation-angle function´s harmonic components firstly. It achieved the basic dimension type of linkages and the mathematical model of coupler path based on complex-vector theory secondly, then acquired the formula of the mechanism real size through fuzzy recognition method and the analysis of coupler rotation-angle operator´s harmonic components, Finally, CAD system of the linkages real size and motion simulation was developed, any practical four-bar linkages will be easier designed with the software according to user actual demands. It increases the automation level and precision of mechanism design so as to meet the user accurate, efficient design demands. This method can be applied to the design of other linkage mechanism types and gear linkage combination mechanism, so it has shown large practical utility.