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Title: Vibration suppression in cutting tools using collocated piezoelectric sensors/actuators with an adaptive control algorithm

Abstract

The machining process is very important in many engineering applications. In high precision machining, surface finish is strongly correlated with vibrations and the dynamic interactions between the part and the cutting tool. Parameters affecting these vibrations and dynamic interactions, such as spindle speed, cut depth, feed rate, and the part's material properties can vary in real-time, resulting in unexpected or undesirable effects on the surface finish of the machining product. The focus of this research is the development of an improved machining process through the use of active vibration damping. The tool holder employs a high bandwidth piezoelectric actuator with an adaptive positive position feedback control algorithm for vibration and chatter suppression. In addition, instead of using external sensors, the proposed approach investigates the use of a collocated piezoelectric sensor for measuring the dynamic responses from machining processes. The performance of this method is evaluated by comparing the surface finishes obtained with active vibration control versus baseline uncontrolled cuts. Considerable improvement in surface finish (up to 50%) was observed for applications in modern day machining.

Authors:
 [1];  [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
956616
Report Number(s):
LA-UR-08-07584; LA-UR-08-7584
TRN: US201016%%2301
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article
Journal Name:
ASME Journal of Vibration and Acoustics
Additional Journal Information:
Journal Name: ASME Journal of Vibration and Acoustics
Country of Publication:
United States
Language:
English
Subject:
42; ACCURACY; ACTUATORS; ALGORITHMS; COMPARATIVE EVALUATIONS; COMPUTERIZED CONTROL SYSTEMS; CONTROL; CUTTING TOOLS; DAMPING; DEPTH; DYNAMICS; ENGINEERING; INHIBITION; INTERACTIONS; MACHINING; MECHANICAL VIBRATIONS; PERFORMANCE; SENSORS; SURFACES; VELOCITY

Citation Formats

Radecki, Peter P, Farinholt, Kevin M, Park, Gyuhae, and Bement, Matthew T. Vibration suppression in cutting tools using collocated piezoelectric sensors/actuators with an adaptive control algorithm. United States: N. p., 2008. Web.
Radecki, Peter P, Farinholt, Kevin M, Park, Gyuhae, & Bement, Matthew T. Vibration suppression in cutting tools using collocated piezoelectric sensors/actuators with an adaptive control algorithm. United States.
Radecki, Peter P, Farinholt, Kevin M, Park, Gyuhae, and Bement, Matthew T. Tue . "Vibration suppression in cutting tools using collocated piezoelectric sensors/actuators with an adaptive control algorithm". United States. https://www.osti.gov/servlets/purl/956616.
@article{osti_956616,
title = {Vibration suppression in cutting tools using collocated piezoelectric sensors/actuators with an adaptive control algorithm},
author = {Radecki, Peter P and Farinholt, Kevin M and Park, Gyuhae and Bement, Matthew T},
abstractNote = {The machining process is very important in many engineering applications. In high precision machining, surface finish is strongly correlated with vibrations and the dynamic interactions between the part and the cutting tool. Parameters affecting these vibrations and dynamic interactions, such as spindle speed, cut depth, feed rate, and the part's material properties can vary in real-time, resulting in unexpected or undesirable effects on the surface finish of the machining product. The focus of this research is the development of an improved machining process through the use of active vibration damping. The tool holder employs a high bandwidth piezoelectric actuator with an adaptive positive position feedback control algorithm for vibration and chatter suppression. In addition, instead of using external sensors, the proposed approach investigates the use of a collocated piezoelectric sensor for measuring the dynamic responses from machining processes. The performance of this method is evaluated by comparing the surface finishes obtained with active vibration control versus baseline uncontrolled cuts. Considerable improvement in surface finish (up to 50%) was observed for applications in modern day machining.},
doi = {},
journal = {ASME Journal of Vibration and Acoustics},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {1}
}