All Outputs (31)

Sliding Mode Contouring Control for Biaxial Feed Drive Systems with a Nonlinear Sliding Surface (2014)
Journal Article

Control input variance is one of the important criteria in machining because it affects the surface roughness, machining precisions and consumed energy. This paper presents a nonlinear controller design for biaxial feed drive systems for reducing the... Read More about Sliding Mode Contouring Control for Biaxial Feed Drive Systems with a Nonlinear Sliding Surface.

Energy Saving in Feed Drive Systems Using Sliding-Mode-Based Contouring Control With a Nonlinear Sliding Surface (2014)
Journal Article

Reduction of contour error, which is defined as the shortest distance between the actual position of the cutting tool and the reference trajectory, is an essential requirement in machining by multiaxis feed drive systems. In addition, because these m... Read More about Energy Saving in Feed Drive Systems Using Sliding-Mode-Based Contouring Control With a Nonlinear Sliding Surface.

D019 Sliding Mode Contouring Controller with A Nonlinear Sliding Surface and A Disturbance Observer for Five-Axis Machining Tasks (2013)
Conference Proceeding

The five-axis CNC (computer numerical control) machines are highly flexible compared to those with three-axis and this makes them becoming popular in modern industries. In this paper, we propose a novel sliding mode contouring controller with a nonli... Read More about D019 Sliding Mode Contouring Controller with A Nonlinear Sliding Surface and A Disturbance Observer for Five-Axis Machining Tasks.

Reduction of Electrical Energy Consumed by Feed-Drive Systems Using Sliding-Mode Control With a Nonlinear Sliding Surface (2013)
Journal Article

The large amount of energy consumed in machining by feed-drive systems has become an important issue in recent years because machine tools are extensively used worldwide. This paper presents a novel sliding-mode controller with a nonlinear sliding su... Read More about Reduction of Electrical Energy Consumed by Feed-Drive Systems Using Sliding-Mode Control With a Nonlinear Sliding Surface.

Energy saving control in five-axis machine tools using contouring control (2013)
Conference Proceeding

Machine tools operate around the clock in industrial applications all over the world, and hence there is a requirement not only for high-speed and high-precision operation but also for reduced energy consumption. This paper presents a novel controlle... Read More about Energy saving control in five-axis machine tools using contouring control.

Reduction of control input variance of feed drive systems using sliding-mode control with non-linear sliding surface (2013)
Conference Proceeding

Ball-screw drives have been widely used in industrial applications delivering high precision motion in work machines, such as machine tools, where both high speed and positioning accuracy are required. Most of control schemes used in industrial appli... Read More about Reduction of control input variance of feed drive systems using sliding-mode control with non-linear sliding surface.

Estimation of tool orientation contour errors for five-axismachining (2013)
Journal Article

Recently, there has been a growth of interest in high-precision machining in multi-axis feed drive systems, which are subject to problems such as friction, cutting force and incompatibility of individual driving axis dynamics. Tracking errors in an i... Read More about Estimation of tool orientation contour errors for five-axismachining.

Sliding mode contouring control design using nonlinear sliding surface for three-dimensional machining (2012)
Journal Article

Machining accuracy as well as consumed energy saving are important issues in machining by multi-axis feed drive systems. The contour error, which is defined as the error component orthogonal to the desired contour curve, is a good indicator of machin... Read More about Sliding mode contouring control design using nonlinear sliding surface for three-dimensional machining.

Synchronization of tool tip and tool orientation contour errors in five-axis machining (2012)
Conference Proceeding

In current CNC machines, each axis is generally controlled by an individual controller, which tries to minimize the axial position tracking error. However, eliminating the tracking errors of each individual axis in multi-axis feed drive systems may n... Read More about Synchronization of tool tip and tool orientation contour errors in five-axis machining.

Discrete-time model predictive contouring control for biaxial feed drive systems and experimental verification (2011)
Journal Article

In this paper we present a novel algorithm to model predictive contouring control for biaxial feed drive systems. model predictive control (MPC) refers to a class of model-based controllers that uses an explicit process model and tracking error dynam... Read More about Discrete-time model predictive contouring control for biaxial feed drive systems and experimental verification.

Contouring controller design based on iterative contour error estimation for three-dimensional machining (2011)
Journal Article

Recently, there has been a growth of interest in high precision machining in multi-axis feed drive systems, subjected to problems such as friction, cutting force and incompatibility of individual driving axis dynamics. To guarantee high precision mac... Read More about Contouring controller design based on iterative contour error estimation for three-dimensional machining.