Chatter vibrations are present in almost all cutting operations and they are major obstacles
in achieving desired productivity. Regenerative chatter is the most detrimental to any …

This book presents the recently introduced and already widely referred semi-discretization
method for the stability analysis of delayed dynamical systems. Delay differential equations …

The general trend towards lightweight components and stronger but difficult to machine
materials leads to a higher probability of vibrations in machining systems. Amongst them …

This paper presents a novel method for programming spindle speed variation for machine
tool chatter suppression. This method is based on varying the spindle speed for minimum …

We investigate a single-degree-of-freedom model of turning with sinusoidal spindle speed
modulation and the corresponding delay-differential equation with time-varying delay. The …

Spindle speed variation is a well-known technique to suppress regenerative machine tool
vibrations, but it is usually considered to be effective only for low spindle speeds. In this …

Up to now, the theory for analysis of continuous spindle speed variation in milling processes
was developed for sinusoidal variation only, and for average tooth passing frequency an …

A new analytical model to predict the chatter stability of variable spindle speed machining is
presented. This model is based on transforming the linear differential equations with time …

Chatter is a vibrational problem affecting machining operations, which may cause bad
surface quality and damages to the machining system. In recent decades, several …

This paper presents a new method for varying the spindle speed to suppress chatter in
machining. The spindle speed is varied in a pseudo-random fashion within the bandwidth of …