RESEARCH PAPER
Investigation on Vibration Behaviour and Damping Enhancement of Single-Stage Cantilever Beam Employing Copper Tuned Mass Dampers
1
Department of Civil Engineering, Government Engineering College, India
2
Department of Mechanical Engineering, Government Engineering College, India
3
Department of Civil Engineering, Government SKSJ Technological Institute, India
4
Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, India
These authors had equal contribution to this work
Submission date: 2025-11-27
Final revision date: 2026-03-25
Acceptance date: 2026-03-31
Publication date: 2026-06-05
Corresponding author
Vikas Singh PANWAR
Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Manipal, India
Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Manipal, India
Acta Mechanica et Automatica 2026;20(2):291-297
HIGHLIGHTS
- Experimental analysis of free and forced vibrations in cantilever structures
- Natural frequencies identified using log decrement and modal shaker excitation
- Copper beam inclusion reduced natural frequency, acting as an effective TMD
- Consistent results validated the accuracy of the DEWESOFTX-based test setup
- Vibration amplitude significantly reduced, improving structural stability
KEYWORDS
TOPICS
ABSTRACT
An experimental study of a single-stage structure subjected to forced and free vibrations is presented in this article. The primary goals of the investigation are to identify the natural frequencies and analyse their dynamic behaviour. Homogeneous cantilever beams and their variations are tested using the DEWESOFTX software, both with and without a copper beam condition. An examination of free vibration was done. The structures were mounted on a modal shaker for forced vibration analysis, and the frequency response under forward sweep excitation was examined. The natural frequency was determined to be 7.324 Hz in the forced vibration scenario and 8.54 Hz in the free vibration case for the single-stage structure without a copper beam, showing good agreement. The natural frequency dropped to 7.42 Hz for free vibration and 7.32 Hz for forced vibration when a copper beam was added, indicating its potential as a tuned mass damper (TMD) to successfully lessen the vibrations. The structure's amplitude has been successfully decreased, and its stability and performance have been improved by using a copper beam as a vibration-damping medium. Analysing the vibration and damping properties of copper as a tuned mass damper is the aim of this study. Finding a single-stage structure's natural frequency under forced and free vibration settings with and without copper beam as a TMD is the main goal of this work.
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| eISSN: | 2300-5319 |
| ISSN: | 1898-4088 |
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