Research Article

Eccentricity Parameters Identification for a Motorized Spindle System Based on Improved Maximum Likelihood Method

Table 1

The performance parameters of the motorized spindle system.

PartsParametersSpecifications

RotorElastic modulus (GPa)211
Shear modulus (GPa)81.2
Density (kg/m3)7810
Grinding wheelMass (kg)11000
MotorMass (kg)15000
The front bearingStiffness coefficient (MN·m−1)85
The rear bearingStiffness coefficient (MN·m−1)65