Journal ArticleDOI
Efficient active chatter mitigation for boring operation by electromagnetic actuator using optimal fractional order PDλ controller
TLDR
It is observed that a fractional order PDλ controller designed by using combination of pseudo spectral and response optimization techniques is highly efficient in terms of the requirement of low amplitude of the peak force and simplicity of implementation.About:
This article is published in Journal of Materials Processing Technology.The article was published on 2020-02-01. It has received 9 citations till now. The article focuses on the topics: Open-loop controller & Delay differential equation.read more
Citations
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Journal ArticleDOI
A new magnetorheological damper for chatter stability of boring tools
TL;DR: In this paper, a magnetorheological (MR) damper is introduced to increase the stability of the boring process, which significantly increases the chatter free depth of cut on the stability lobe diagrams.
Journal ArticleDOI
Improving optimal chatter control of slender cutting tool through more accurate tuned mass damper modeling
TL;DR: This paper improves the optimal chatter control through a more accurate modeling method which considers the cutting tool as a cantilever Euler–Bernoulli beam and the TMD as a two degrees of freedom system including translation vibration and rotation vibration of the mass block.
Peer ReviewDOI
A State-of-the-Art Review on Chatter Stability in Machining Thin−Walled Parts
TL;DR: In this paper , the authors systematically review previous studies on the identification of system dynamic characteristics, modeling and prediction of chatter stability, and chatter elimination/suppression methods and devices and conclude that existing problems are summarized, and future research is concluded.
Journal ArticleDOI
Feasibility study on machining extra-large aspect ratio aviation deep-hole Ti6Al4V part with axial ultrasonic vibration-assisted boring
TL;DR: In this article, the axial ultrasonic vibration-assisted boring (AUVB) method has been used for aviation deep-hole machining and the results demonstrate that AUVB has obvious advantages in reducing boring force, improving boring accuracy, suppressing vibration and promoting surface quality.
Journal ArticleDOI
Numerical Simulation and Optimization of Microwave Heating Effect on Coal Seam Permeability Enhancement
TL;DR: In this paper , the most important parameters affecting the electric and thermal fields' distribution in coal were investigated in order to identify the effective parameters that achieve the highest temperature increase rate and to reach the highest impact and efficiency of the system with the least amount of consumed energy.
References
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Journal ArticleDOI
A study of cutting process stability of a boring bar with active dynamic absorber
TL;DR: In this article, the use of an active dynamic absorber to suppress machine tool chatter in a boring bar is studied, where the vibrations of the system are reduced by moving an absorber mass using an active device such as an piezoelectric actuator, to generate an inertial force that counteracts the disturbance acting on the main system.
Journal ArticleDOI
Robust Active Chatter Control in the High-Speed Milling Process
TL;DR: A control methodology for the high-speed milling process is developed that alters the chatter stability boundary such that the area of chatter-free operating points is increased and a higher productivity can be attained.
Journal ArticleDOI
Regenerative chatter reduction by active damping control
TL;DR: In this paper, the effect of active damping on regenerative chatter instability for a turning operation was investigated and two approaches are used for this purpose: the traditional stability analysis technique in Altintas [Manufacturing Automation, Cambridge University Press, Cambridge, 2000] and other works is adopted and a correlation between the chip shape (which is dependent on the spindle speed) and system damping is presented.
Journal ArticleDOI
Chatter control and stability analysis of a cantilever boring bar under regenerative cutting conditions
Jon R. Pratt,Ali H. Nayfeh +1 more
TL;DR: In this paper, an active control technique for changing the form of this bifurcation from subcritical to supercritical is presented for a prototypical, single-degree-of-freedom model.
Journal ArticleDOI
Optimal control of chatter in turning
TL;DR: In this paper, the state feedback control due to an LQI control mode and a state observer is used to estimate difficult to measure entire state variables is implemented by using a bench type lathe where the chatter vibration is stabilized and the tracking error in following desired tool positions should be minimized.
Related Papers (5)
Design, analysis, and implementation of a new adaptive chatter control system in internal turning
Adaptive inverse control of chatter vibrations in internal turning operations
M. Fallah,Behnam Moetakef-Imani +1 more