Open AccessStudy on vibration characteristics of motorized spindle based on multi-physics fields
Author(s) -
K Zhang,
Z N Wang,
Z Wang,
Q Y Wang,
Jian Ma
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1009/1/012062
Subject(s) - vibration , machining , ceramic , field (mathematics) , stiffness , bearing (navigation) , mechanical engineering , machine tool , engineering , materials science , computer science , structural engineering , physics , acoustics , mathematics , composite material , artificial intelligence , pure mathematics
Ceramic motorized spindle plays an important role on CNC machine tool. Its dynamic characteristic determines the machining quality of spindle. This paper established a dynamics model of ceramic bearing, and explored the relationship of bearing stiffness and vibration response. The temperature field model of ceramic motorized spindle was established to analyze the temperature field. The motorized spindle air gap influence on unbalanced magnetic pull was studied. The dynamic model of ceramic motorized spindle was established through considering the multiple physical fields influence factors, the changing law of dynamic characteristics was studied. It has been verified by experiments. The average error of ceramic spindle decreased from 5.1% to 2.1%. The establishment of multi-fields dynamic model provided an important guidance for spindle design.