Hardware-in-the-loop simulator for emulation and active control of chatter

Machine tool cutting performance is limited by the onset of regenerative chatter vibrations. Chatter damages the machine tool system and must be avoided. Efficacy of models guiding circumvention of chatter in actual industrial contexts remains restricted due to cutting process nonlinearities and due...

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Main Authors: Govind N. Sahu, Mohit Law
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:HardwareX
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468067222000189
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author Govind N. Sahu
Mohit Law
author_facet Govind N. Sahu
Mohit Law
author_sort Govind N. Sahu
collection DOAJ
description Machine tool cutting performance is limited by the onset of regenerative chatter vibrations. Chatter damages the machine tool system and must be avoided. Efficacy of models guiding circumvention of chatter in actual industrial contexts remains restricted due to cutting process nonlinearities and due to uncertainties in dynamics of machine tools. To verify chatter models in the presence of nonlinearities and uncertainties and to explore active control of chatter, a mechatronic hardware-in-the-loop (HiL) simulator is presented in this paper. Hardware layer of the simulator has a flexure approximating a flexible workpiece and two actuators to emulate cutting forces and apply active damping forces. Software layer involves control architecture that is to be emulated on the hardware layer. Since HiL simulators offer a non-destructive, repeatable, and safe platform for emulations and active control of chatter, and because this paper presents the design of a validated simulator with all accompanying source files along with build and operating instructions, the research community can build such simulators to investigate other complex chatter phenomena and can also use it as a pedagogical tool. Learnings from building and using such simulators can also be leveraged to characterize and solve problems across other engineering domains.
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spelling doaj.art-85655d03e45a432880aef4a7592025af2022-12-22T00:35:08ZengElsevierHardwareX2468-06722022-04-0111e00273Hardware-in-the-loop simulator for emulation and active control of chatterGovind N. Sahu0Mohit Law1Machine Tool Dynamics Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, IndiaCorresponding author.; Machine Tool Dynamics Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, IndiaMachine tool cutting performance is limited by the onset of regenerative chatter vibrations. Chatter damages the machine tool system and must be avoided. Efficacy of models guiding circumvention of chatter in actual industrial contexts remains restricted due to cutting process nonlinearities and due to uncertainties in dynamics of machine tools. To verify chatter models in the presence of nonlinearities and uncertainties and to explore active control of chatter, a mechatronic hardware-in-the-loop (HiL) simulator is presented in this paper. Hardware layer of the simulator has a flexure approximating a flexible workpiece and two actuators to emulate cutting forces and apply active damping forces. Software layer involves control architecture that is to be emulated on the hardware layer. Since HiL simulators offer a non-destructive, repeatable, and safe platform for emulations and active control of chatter, and because this paper presents the design of a validated simulator with all accompanying source files along with build and operating instructions, the research community can build such simulators to investigate other complex chatter phenomena and can also use it as a pedagogical tool. Learnings from building and using such simulators can also be leveraged to characterize and solve problems across other engineering domains.http://www.sciencedirect.com/science/article/pii/S2468067222000189Hardware-in-the-loop simulatorChatterTurningStabilityActive damping
spellingShingle Govind N. Sahu
Mohit Law
Hardware-in-the-loop simulator for emulation and active control of chatter
HardwareX
Hardware-in-the-loop simulator
Chatter
Turning
Stability
Active damping
title Hardware-in-the-loop simulator for emulation and active control of chatter
title_full Hardware-in-the-loop simulator for emulation and active control of chatter
title_fullStr Hardware-in-the-loop simulator for emulation and active control of chatter
title_full_unstemmed Hardware-in-the-loop simulator for emulation and active control of chatter
title_short Hardware-in-the-loop simulator for emulation and active control of chatter
title_sort hardware in the loop simulator for emulation and active control of chatter
topic Hardware-in-the-loop simulator
Chatter
Turning
Stability
Active damping
url http://www.sciencedirect.com/science/article/pii/S2468067222000189
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