Comparison of graph-based methods of kinematical analysis of planetary gears

In the paper three graph-based methods of planetary gear modeling are discussed. The following methods have been considered: Hsu’s graph, contour graph and bond graphs-based methods. The theoretical ideas of the mentioned approaches were shortly revised and compared. Two of them were applied for analysis of an exemplary planetary gear. The consistency with traditional Willis method was checked. Advantages of the proposed approaches are highlighted.