The singularities, forces transmission index and mechanism selfblocking

7th International Conference on Advanced Concepts in Mechanical Engineering

Duca, C.^1 ; Buium, F.^1

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^1

关键词: Blocking phenomenon;    Configuration parameters;    Critical configurations;    Critical positions;    Existence conditions;    Real solutions;    Structural groups;    Transmission quality;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012072/pdf
DOI  :  10.1088/1757-899X/147/1/012072

来源: IOP

【 摘 要 】

The paper represents a synthesis of the most representative results obtained by authors, along their researches in the field of mechanism singularities, forces transmission quality in mechanisms and self-blocking phenomenon. Our research is based on the idea that mechanism critical positions are a consequence of critical configurations in the component structural groups. At its turn, the critical configurations are noticed when the mathematical model of the kinematics and statics without friction, is affected by singularities. Thus, we have presented in the paper, the case of the principal structural groups, and we have established the critical configuration, the calculus formula of the configuration parameter and the existence conditions of the configuration (real solutions in the position problem).