Open AccessA method for assigning the motion precision of meta-action chain based on spinor theory
Author(s) -
Guangqi Ying,
Genbao Zhang,
Yan Ran,
Zongyi Mu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1820/1/012168
Subject(s) - action (physics) , computer science , motion (physics) , genetic algorithm , chain (unit) , function (biology) , sensitivity (control systems) , machine tool , control theory (sociology) , algorithm , mathematics , artificial intelligence , engineering , machine learning , control (management) , mechanical engineering , physics , quantum mechanics , astronomy , evolutionary biology , electronic engineering , biology
In order to provide theoretical guidance for the precision design and optimization of CNC machine tools, the motion precision distribution model of the meta-motion chain was established based on the minimum motion unit - meta-action. The motion function of CNC machine tool was decomposed into meta-action chain by using the “function-motion-action” (FMA) method, and the motion precision model of meta-action chain was established based on the screw theory. The sensitivity coefficient was used as the manufacturing cost index, and the spatial rotation error was used as the objective function to construct the motion precision distribution model. Finally, the NSGA-II genetic method was used to solve the distribution. The motion precision distribution of a numerical control machine tool is carried out, and the feasibility of the model is verified, which provides theoretical guidance for precision design of products.