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Updated: Dec 22, 2025

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
Published on: June 28, 2024
Increasing Damping of Thin-Walled Structures Using Additively Manufactured Vibration Eliminators.
Paweł Dunaj1, Stefan Berczyński1, Karol Miądlicki1
1Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, al. Piastów 19, 70-310 Szczecin, Poland.
This study introduces a novel method for passive vibration elimination using 3D-printed polylactide (PLA) covers on structures. This technique significantly enhances damping properties, reducing vibration amplitudes by up to 90%.
Area of Science:
- Mechanical Engineering
- Materials Science
- Structural Dynamics
Background:
- Vibration elimination is crucial for structural integrity and performance.
- Low dynamic stiffness elements often require enhanced damping solutions.
- Polylactide (PLA) offers potential for additive manufacturing-based structural modifications.
Purpose of the Study:
- To introduce and evaluate a novel passive vibration elimination technique.
- To investigate the influence of polylactide (PLA) covers on structural damping.
- To develop and validate finite element models for predicting damping enhancement.
Main Methods:
- Covering structural elements with 3D-printed polylactide (PLA).
- Utilizing press connections for attaching PLA covers.
- Performing parametric analyses using finite element models (FEM).
- Conducting experimental studies for verification.
Main Results:
- FEM models accurately predicted resonance frequencies with <0.6% error.
- PLA covers significantly increased structure dissipation properties.
- Up to 90% reduction in receptance function amplitude for a steel beam.
- 37% reduction in receptance function amplitude for a steel frame.
Conclusions:
- 3D-printed PLA covers are effective for passive vibration elimination.
- FEM analysis is a reliable tool for optimizing PLA cover design.
- This method offers a significant improvement in structural damping.
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