This book focuses on the topology theory of mechanisms developed by the authors and provides a systematic method for the topology design of robot mechanisms.
The main original theoretical contributions of this book include:
A. Three basic concepts
? The geometrical constraint type of axes is introduced as the third element of the topological structure of a mechanism. When it is combined with the other two elements, the kinematic pair and the connection of links, the symbolic expression of the topological structure is independent of the motion positions (except for the singularity positions) and the fixed coordinate system (Chapter 2).
? The position and orientation characteristic (POC) set is used to describe the POC of the relative motion between any two links. The POC set, derived from the unit vector set of the velocity of a link, is only depend on the topological structure of a mechanism. Therefore, it is also independent of the motion positions and the fixed coordinate system (Chapter 3).
? The single open chain (SOC) unit is the base unit of the topological structure used to develop the four basic equations of the mechanism topology (Chapters 2, 46).
B. The mechanism composition principle based on the SOC units
This book proposes a mechanism composition principle, based on the SOC units, to establish a systematic theory for the unified modeling of the topology, kinematics, and dynamics of mechanisms based on the SOC units (Chapter 7).
C. Four basic equations
The POC equation of serial mechanilƒ,