Stability improvement and regenerative chatter suppression in nonlinear milling process via tunable vibration absorber

2012 ◽  
Vol 331 (21) ◽  
pp. 4668-4690 ◽  
Author(s):  
Hamed Moradi ◽  
Firooz Bakhtiari-Nejad ◽  
Mohammad R. Movahhedy ◽  
Gholamreza Vossoughi
Keyword(s):  
Milling Process ◽  
Vibration Absorber ◽  
Regenerative Chatter ◽  
Chatter Suppression

scholarly journals Vibration absorber design to suppress regenerative chatter in nonlinear milling process: Application for machining of cantilever plates

2015 ◽  
Vol 39 (2) ◽  
pp. 600-620 ◽  
Author(s):  
Hamed Moradi ◽  
Gholamreza Vossoughi ◽  
Mehdi Behzad ◽  
Mohammad R. Movahhedy
Keyword(s):  
Milling Process ◽  
Vibration Absorber ◽  
Regenerative Chatter

Suppression of nonlinear regenerative chatter in milling process via robust optimal control

2013 ◽  
Vol 23 (5) ◽  
pp. 631-648 ◽  
Author(s):  
Hamed Moradi ◽  
Gholamreza Vossoughi ◽  
Mohammad R. Movahhedy ◽  
Hassan Salarieh
Keyword(s):  
Optimal Control ◽  
Milling Process ◽  
Regenerative Chatter ◽  
Robust Optimal Control

Using a Vibration Absorber to Suppress Chatter Vibration in Turning Process With a Worn Tool

2009 ◽  
Author(s):  
Hamed Moradi ◽  
Firooz Bakhtiari-Nejad ◽  
Mohammad R. Movahhedi
Keyword(s):  
Transmission Lines ◽  
Gas Turbines ◽  
Block Diagram ◽  
Vibration Absorber ◽  
Vibration Absorbers ◽  
Turning Process ◽  
Electrical Transmission ◽  
Chatter Suppression ◽  
Orthogonal Turning ◽  
Dynamic Vibration Absorbers

Dynamic vibration absorbers are used as semi-active controllers to reduce the undesirable vibrations in many applications such as electrical transmission lines, helicopters, gas turbines, engines, bridges and etc. One type of these absorbers is tunable vibration absorber (TVA). In this paper, regenerative chatter in an orthogonal turning process is suppressed using a (TVA). It is shown that TVA can modify the frequency response function of the cutting tool so as to improve cutting stability in turning process. In addition, tool wear is an important factor which works as a positive damping and helps the chatter suppression beside exertion of the TVA. Finally, using the SIMULINK Toolbox of MATLAB, the analog simulated block diagram of the problem is developed. The advantage of this simulation is that, one can analyze the effect of other types of excitations such as step, ramp, etc on the absorbed system.

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