Analysis of the Contribution of Spindle Structural Parameters to Static Stiffness
In order to study the influence of the structural parameters of the spindle arbor on the radial static stiffness of the spin-dle,taking a certain type of spindle as research object,the radial static stiffness of the spindle was analyzed through the finite element model static analysis.The structural parameters of the spindle arbor were simplified into 12 main structural parameters,and the correla-tion between the structural parameters and the radial static stiffness of the spindle were analyzed by using the single variable method and correlation analysis method,the structural parameters significantly correlated with the radial static stiffness of the spindle were deter-mined.The contribution of the key structural parameters to the radial static stiffness of the spindle was analyzed by orthogonal experi-ments and variance analysis method.The results show that the contribution of the structural parameters between the spindle overhang part and the bearing spans to the radial static stiffness of the spindle is 20.3％and 69.8％.The radial static stiffness of the spindle can be controlled by changing the structural parameters of the spindle arbor to improve the stiffness characteristics of the spindle.
spindle unitspindle arborvariance analysisorthogonal experimentsfinite element analysis
NETL
NSTL
万方数据
