Optimal modeling of spindle-tool system with design variables using Taguchi based approach

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).