Analysis of nine-speed planetary change-gears through the torque method

An alternative method for kinematic and power analysis of compound gear train is presented, which uses the torques lever analogy a given train. The combines accuracy Willis analytical with clarity graphic Kutzbach. Unlike these methods, torque allows determining not only ratio, but magnitude direction flows, hence determination efficiency planetary application illustrated example novel arrangement complex nine-speed change-gear. Structural, kinematic, (efficiency) are made. A software facilitation developed. numerical presented discussed.