Dynamic response of MRE under power tool excitation: Implications for hand-arm vibration reduction.
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| Title: | Dynamic response of MRE under power tool excitation: Implications for hand-arm vibration reduction. |
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| Authors: | Kamath, Nagaraja1,2 (AUTHOR) kamathnagaraj97@gmail.com, Shenoy K, Praveen2,3 (AUTHOR), Susheelkumar, GN2,4 (AUTHOR), Gangadharan, KV1,2 (AUTHOR) |
| Source: | Noise & Vibration Worldwide. Jan/Feb2026, Vol. 57 Issue 1/2, p16-27. 12p. |
| Subjects: | Vibration isolation, Power tools, Experimental design, Power transmission, Hypothesis, Smart materials |
| Abstract: | Prolonged exposure to power tools on construction sites can lead to Hand-Arm Vibration Syndrome (HAVS), a debilitating condition characterized by numbness, pain, and permanent damage to nerves, blood vessels, and muscles in the hands and arms. ISO 2631-1:1997 dictates that vibrations in the 0-80 Hz range, mainly those transmitted through the hand-arm system, exhibit long-term effects. While passive vibration isolation techniques are often limited by their application-specificity, active isolation techniques are limited to specific devices. This study introduces a semi-active vibration isolation system to mitigate vertical vibrations under varying drilling conditions and overcome these limitations. The focus is on the front/chuck region, where precise control is essential, and increased grip force can amplify vibration transmission. A Magnetorheological elastomer-based handle (MREH) is designed and attached to the hammer drill. An experimental setup is built where the modified drilling machine with the MRE handle is mounted on a sliding platform to accommodate bricks and concrete beam samples of varying hardness. The performance evaluation of the MREH is conducted using the natural frequency obtained from the Modal Testing method at different magnetic fields. Results indicate the field-dependent behaviour of the MREH on the isolation capabilities by reducing the amplitudes. The characteristic behaviour of MRE results in a maximum shift of 2 Hz and a corresponding 73.68% reduction in amplitude, increasing the drilling comfort by limiting the vibration transmission. [ABSTRACT FROM AUTHOR] |
| Copyright of Noise & Vibration Worldwide is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 190662550 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Dynamic response of MRE under power tool excitation: Implications for hand-arm vibration reduction. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kamath%2C+Nagaraja%22">Kamath, Nagaraja</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> kamathnagaraj97@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Shenoy+K%2C+Praveen%22">Shenoy K, Praveen</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Susheelkumar%2C+GN%22">Susheelkumar, GN</searchLink><relatesTo>2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gangadharan%2C+KV%22">Gangadharan, KV</searchLink><relatesTo>1,2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Noise+%26+Vibration+Worldwide%22">Noise & Vibration Worldwide</searchLink>. Jan/Feb2026, Vol. 57 Issue 1/2, p16-27. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Vibration+isolation%22">Vibration isolation</searchLink><br /><searchLink fieldCode="DE" term="%22Power+tools%22">Power tools</searchLink><br /><searchLink fieldCode="DE" term="%22Experimental+design%22">Experimental design</searchLink><br /><searchLink fieldCode="DE" term="%22Power+transmission%22">Power transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Hypothesis%22">Hypothesis</searchLink><br /><searchLink fieldCode="DE" term="%22Smart+materials%22">Smart materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Prolonged exposure to power tools on construction sites can lead to Hand-Arm Vibration Syndrome (HAVS), a debilitating condition characterized by numbness, pain, and permanent damage to nerves, blood vessels, and muscles in the hands and arms. ISO 2631-1:1997 dictates that vibrations in the 0-80 Hz range, mainly those transmitted through the hand-arm system, exhibit long-term effects. While passive vibration isolation techniques are often limited by their application-specificity, active isolation techniques are limited to specific devices. This study introduces a semi-active vibration isolation system to mitigate vertical vibrations under varying drilling conditions and overcome these limitations. The focus is on the front/chuck region, where precise control is essential, and increased grip force can amplify vibration transmission. A Magnetorheological elastomer-based handle (MREH) is designed and attached to the hammer drill. An experimental setup is built where the modified drilling machine with the MRE handle is mounted on a sliding platform to accommodate bricks and concrete beam samples of varying hardness. The performance evaluation of the MREH is conducted using the natural frequency obtained from the Modal Testing method at different magnetic fields. Results indicate the field-dependent behaviour of the MREH on the isolation capabilities by reducing the amplitudes. The characteristic behaviour of MRE results in a maximum shift of 2 Hz and a corresponding 73.68% reduction in amplitude, increasing the drilling comfort by limiting the vibration transmission. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Noise & Vibration Worldwide is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1177/09574565251382129 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 16 Subjects: – SubjectFull: Vibration isolation Type: general – SubjectFull: Power tools Type: general – SubjectFull: Experimental design Type: general – SubjectFull: Power transmission Type: general – SubjectFull: Hypothesis Type: general – SubjectFull: Smart materials Type: general Titles: – TitleFull: Dynamic response of MRE under power tool excitation: Implications for hand-arm vibration reduction. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kamath, Nagaraja – PersonEntity: Name: NameFull: Shenoy K, Praveen – PersonEntity: Name: NameFull: Susheelkumar, GN – PersonEntity: Name: NameFull: Gangadharan, KV IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan/Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 09574565 Numbering: – Type: volume Value: 57 – Type: issue Value: 1/2 Titles: – TitleFull: Noise & Vibration Worldwide Type: main |
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