Database of planetary gear trains suitable for the design of automatic transmission mechanisms

The complete databases of tree graphs and planetary gear trains suitable for the design of automatic transmission mechanisms are provided. Upper triangular elements of the adjacency matrix of each graph are stored in the database, where letter “A” represents number “10”, and letter “B” represents number “11”.本数据集提供了适用于自动变速器机构设计的完整树图（tree graphs）与行星轮系（planetary gear trains）数据库。各图邻接矩阵（adjacency matrix）的上三角元素均存储于该数据库中，其中字母"A"对应数字"10"，字母"B"对应数字"11"。