Interpolation Approximation Design of Pin-jointed Four-Bar Linkages with Corresponding Angular Displacements of Grounded Links

摘要

Interpolation approximation is used in the design of Pin-jointed Four-bar Linkages with corresponding angular displacements of grounded links to realize approximately a given function. First Four-bar linkage position equations with parameters to be determined are established ; then the paper sets up the relationships between given function and approximation function ; finally it chooses Chebychev interpolation points to determine the approximation function. Angular error analysis is also conducted. A design example is given for reference in the end.