Finite Element Analysis of Magneto-Rheological Fluid (MRF) Boring Bar
G. Prasanna Kumar1, N. Seetharamaiah2, B. Durga Prasad3
1G. Prasanna Kumar, Assistant Professor, Department of Mechanical Engineering, Muffakham Jah College of Engineering and Technology, Hyderabad, (Telangana), India.
2N. Seetharamaiah, Professor, Department of Mechanical Engineering, Muffakham Jah College of Engineering and Technology, Hyderabad, (Telangana), India.
3B. Durga Prasad, Professor, Department of Mechanical Engineering, JNTUACE (A), Anantapuramu (Andhra Pradesh), India.
Manuscript received on 15 April 2016 | Revised Manuscript received on 25 April 2016 | Manuscript Published on 30 April 2016 | PP: 57-61 | Volume-5 Issue-4, April 2016 | Retrieval Number: D4482045416/16©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Chatter is a concern in boring process, due to the low dynamic stiffness of long cantilever boring bars. Chatter suppression in machining permits higher productivity and better surface finishes. In order to improve the performance of boring operations, several researchers have investigated electro- and magneto-rheological fluids and piezoelectric and electromagnetic actuators as vibration absorbers. The MR fluid, which changes stiffness and undergoes a phase transformation when subjected to an external magnetic field, is applied to adjust the stiffness of the boring bar and suppress chatter. The stiffness and energy dissipation properties of the MR fluid boring bar can be adjusted by varying the strength of the applied magnetic field. In this study, a finite element model of a MR fluid boring bar is established to investigate the strength of magnetic field at various locations of the boring bar for different current inputs.
Keywords: Chatter, MR Fluid, Boring bar, Magnetic Flux Density, Finite Element Model.
Scope of the Article: Pattern Recognition and Analysis