Optimal modeling of spindle-tool system with design variables using Taguchi based approach
Keywords:
Frequency response; Spindle design; Milling stability; DOE; Optimization module.Abstract
A generalized finite element (FE) model of the spindle machine based totally on
Timoshenko’s beam idea is hired to discretize the meeting with joint interfaces idealized with
the aid of contact spring models and the model is confirmed with experimental modal
analysis at the spindle-tool system. The effects of five important variables namely tool
overhang, bearing span, tool diameter, contact stiffness, and axial preload are
simultaneously studied on the dynamic response of the spindle-tool unit.Using method
ofdesign of experiments(DOE),the dynamic stiffness data along with fundemental natural
frequencies are recorded for different combinations of design variables. Initially after
studying the parametric effects using analysis of variance(ANOVA).
