Huafeng Ding

This book provides a comprehensive overview of the current research status and open problems in the field of structural synthesis, based on which a systematic methodology for the structural analysis of planar kinematic chains, structural synthesis of planar kinematic chains, and creative design of mechanisms is presented. The method presented in this book not only promotes the development of theoretical research in the field of mechanical science, and the development of industrial software for the creative design of mechanisms, but also generates novel high-performance mechanisms suitable for industrial application, which can improve the work efficiency and economic benefits. This book offers theoretical guidance for students and researchers engaged in the field of mechanical engineering, especially the creative design of mechanism.

This book provides a comprehensive overview of the current research status and open problems in the field of structural synthesis, based on which a systematic methodology for the structural analysis of planar kinematic chains, structural synthesis of planar kinematic chains, and creative design of mechanisms is presented. The method presented in this book not only promotes the development of theoretical research in the field of mechanical science, and the development of industrial software for the creative design of mechanisms, but also generates novel high-performance mechanisms suitable for industrial application, which can improve the work efficiency and economic benefits. This book offers theoretical guidance for students and researchers engaged in the field of mechanical engineering, especially the creative design of mechanism.

This book contains mechanism analysis and synthesis. In mechanism analysis, a mobility methodology is first systematically presented. This methodology, based on the author's screw theory, proposed in 1997, of which the generality and validity was only proved recently, is a very complex issue, researched by various scientists over the last 150 years. The principle of kinematic influence coefficient and its latest developments are described. This principle is suitable for kinematic analysis of various 6-DOF and lower-mobility parallel manipulators. The singularities are classified by a new point of view, and progress in position-singularity and orientation-singularity is stated. In addition, the concept of over-determinate input is proposed and a new method of force analysis based on screw theory is presented. In mechanism synthesis, the synthesis for spatial parallel mechanisms is discussed, and the synthesis method of difficult 4-DOF and 5-DOF symmetric mechanisms, which was first put forward by the author in 2002, is introduced in detail. Besides, the three-order screw system and its space distribution of the kinematic screws for infinite possible motions of lower mobility mechanisms are both analyzed.

This book contains mechanism analysis and synthesis. In mechanism analysis, a mobility methodology is first systematically presented. This methodology, based on the author's screw theory, proposed in 1997, of which the generality and validity was only proved recently, is a very complex issue, researched by various scientists over the last 150 years. The principle of kinematic influence coefficient and its latest developments are described. This principle is suitable for kinematic analysis of various 6-DOF and lower-mobility parallel manipulators. The singularities are classified by a new point of view, and progress in position-singularity and orientation-singularity is stated. In addition, the concept of over-determinate input is proposed and a new method of force analysis based on screw theory is presented. In mechanism synthesis, the synthesis for spatial parallel mechanisms is discussed, and the synthesis method of difficult 4-DOF and 5-DOF symmetric mechanisms, which was first put forward by the author in 2002, is introduced in detail. Besides, the three-order screw system and its space distribution of the kinematic screws for infinite possible motions of lower mobility mechanisms are both analyzed.