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VIBRATION REDUCTION OF A HAMMER DRILL WITH A TOP-DOWN DESIGN METHOD

Published online by Cambridge University Press:  19 June 2023

Philip Le ,
Duo Xu ,
Anand Vazhapilli Sureshbabu  and
Markus Zimmermann
Philip Le*
Affiliation:
Technical University of Munich
Duo Xu
Affiliation:
Technical University of Munich
Anand Vazhapilli Sureshbabu
Affiliation:
Technical University of Munich
Markus Zimmermann
Affiliation:
Technical University of Munich
*
Le, Philip, Technical University of Munich, Germany, [email protected]

Abstract

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Designing vibrating systems is challenging due to component interaction. One approach to reduce the resulting complexity is top-down design where requirements on components are formulated such that the overall system achieves the design goal. Previous work showed how to derive quantitative and solution-neutral requirements on components of a vibrating system, expressed as permissible ranges of impedance. This work adapts the methodology to a practical use case and provides a concrete technical solution: A hammer drill that can cause white finger syndromes to users is equipped with an appropriate vibration absorber. The hammer drill is represented by a lumped mass model and validated using experimental data of a reference design. Solution-neutral and quantitative component requirements on the overall dynamics of the vibration absorber expressed by impedance are derived. They provide a clear target for the component design. A vibration absorber in form of a Tuned Mass Damper (TMD) is designed accordingly. The final design is validated experimentally and shown to reduce the vibration by 47%.

Keywords

Top-down design methodComputational design methodsNumerical methodsProduct modelling / models
Type
Article
Information
Proceedings of the Design Society , Volume 3: ICED23 , July 2023 , pp. 3801 - 3810
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.
Copyright
The Author(s), 2023. Published by Cambridge University Press

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