The dynamic error of CNC machine tools, which often exceeds the quasi-static error at high-
speed machining, becomes the main reason affecting the machining error of the sculptured …

Ball screw feed-drive system (BSFDS) is the precision transmission mechanism widely used
in micron-scale positioning or motion trajectory control. Its desired specifications including …

A digital twin-based optimization procedure is presented for an ultraprecision motion system
with a flexible shaft connecting the motor to the (elastic) load, which is subject to both …

The precision of machine tools is essentially determined by the feed drive control. To
improve the dynamic behavior of elastic feed drives, this paper presents a novel position …

Increasing of consumed energy is the dominating challenge in many industrial fields,
especially in computer numerical controlled (CNC) machines. Therefore, reducing even a …

In large machine tools, where structural dynamics significantly influences the cutting stability,
judicious selection of the servo control parameters can increase the damping, thereby …

This article proposes a servo control strategy for compensating matched and mismatched
perturbations in flexible ball screw feed systems to improve their tracking performance. The …

A practical design for a high-precision motion control system was formulated without an
accurate dynamic model. The designed control system consisted of a nominal characteristic …

Tracking errors are caused by the amplitude attenuation and phase lag of the servo system
to the command. Based on the mechanism, this study proposes the method of command …

The implementation of precision engineering principles in the design of precision systems is
fundamental to achieve high accuracy. Although these principles may be independent of the …