Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers

Damping of machining vibrations in thin-wall structures is an important area of research due to the ever-increasing use of lightweight structures such as jet engine casings. Published literature has focussed on passive/active damping solutions for open geometry structure (e.g. cantilever thin wall),...

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Main Authors: Kolluru, Kiran V., Axinte, Dragos A., Raffles, Mark H., Becker, Adib A.
Format: Article
Published: SAGE 2014
Subjects:
Online Access:https://eprints.nottingham.ac.uk/35508/
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author Kolluru, Kiran V.
Axinte, Dragos A.
Raffles, Mark H.
Becker, Adib A.
author_facet Kolluru, Kiran V.
Axinte, Dragos A.
Raffles, Mark H.
Becker, Adib A.
author_sort Kolluru, Kiran V.
building Nottingham Research Data Repository
collection Online Access
description Damping of machining vibrations in thin-wall structures is an important area of research due to the ever-increasing use of lightweight structures such as jet engine casings. Published literature has focussed on passive/active damping solutions for open geometry structure (e.g. cantilever thin wall), whereas more challenging situations such as closed geometry structures (e.g. thin wall ring-type casings) were not taken into consideration. In this study, a passive damping solution in the form of tuned viscoelastic dampers is studied to minimise the vibration of thin wall casings while focussing on the change in coupled interaction between tool and workpiece due to added tuned dampers. Finite element simulation was carried out to evaluate the effectiveness of tuned dampers in single impact excitation, and this was further validated experimentally through modal impact testing. A reduction in root mean square value, with tuned dampers, of about 2.5 and 4 times is noted at higher and lower depths of cut, respectively, indicating a moderate dependency on depth of cut. A change in coupled interaction of workpiece with tool’s torsional mode (in undamped state) to that of tool’s bending mode (with tuned dampers) was also noted. Variation in machined wall thickness of the order of 6 mm is noted due to the change in coupled interaction from torsional mode to bending mode of tool.
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institution University of Nottingham Malaysia Campus
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spelling nottingham-355082020-05-04T16:49:42Z https://eprints.nottingham.ac.uk/35508/ Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers Kolluru, Kiran V. Axinte, Dragos A. Raffles, Mark H. Becker, Adib A. Damping of machining vibrations in thin-wall structures is an important area of research due to the ever-increasing use of lightweight structures such as jet engine casings. Published literature has focussed on passive/active damping solutions for open geometry structure (e.g. cantilever thin wall), whereas more challenging situations such as closed geometry structures (e.g. thin wall ring-type casings) were not taken into consideration. In this study, a passive damping solution in the form of tuned viscoelastic dampers is studied to minimise the vibration of thin wall casings while focussing on the change in coupled interaction between tool and workpiece due to added tuned dampers. Finite element simulation was carried out to evaluate the effectiveness of tuned dampers in single impact excitation, and this was further validated experimentally through modal impact testing. A reduction in root mean square value, with tuned dampers, of about 2.5 and 4 times is noted at higher and lower depths of cut, respectively, indicating a moderate dependency on depth of cut. A change in coupled interaction of workpiece with tool’s torsional mode (in undamped state) to that of tool’s bending mode (with tuned dampers) was also noted. Variation in machined wall thickness of the order of 6 mm is noted due to the change in coupled interaction from torsional mode to bending mode of tool. SAGE 2014-06-11 Article PeerReviewed Kolluru, Kiran V., Axinte, Dragos A., Raffles, Mark H. and Becker, Adib A. (2014) Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 228 (6). pp. 826-936. ISSN 2041-2975 Thin wall casing tuned viscoelastic damper machining vibration coupled response finite element analysis http://pib.sagepub.com/content/228/6/826 doi:10.1177/0954405413508769 doi:10.1177/0954405413508769
spellingShingle Thin wall casing
tuned viscoelastic damper
machining vibration
coupled response
finite element analysis
Kolluru, Kiran V.
Axinte, Dragos A.
Raffles, Mark H.
Becker, Adib A.
Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
title Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
title_full Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
title_fullStr Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
title_full_unstemmed Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
title_short Vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
title_sort vibration suppression and coupled interaction study in milling of thin wall casings in the presence of tuned mass dampers
topic Thin wall casing
tuned viscoelastic damper
machining vibration
coupled response
finite element analysis
url https://eprints.nottingham.ac.uk/35508/
https://eprints.nottingham.ac.uk/35508/
https://eprints.nottingham.ac.uk/35508/