Related Experiment Video
Updated: Aug 10, 2025
09:39
Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
Published on: June 28, 2024
1.0K
Towards Highly Efficient, Additively Manufactured Passive Vibration Eliminators for Mechanical Systems.
Izabela Irska1, Grzegorz Kramek1, Karol Miądlicki1
1Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, al. Piastów 19, 70-310 Szczecin, Poland.
Materials (Basel, Switzerland)
|February 11, 2023
Summary
This study introduces 3D-printed polymer pads for passive vibration damping in structures. These pads effectively reduce vibrations, enhancing structural dynamic properties and functionality under dynamic loads.
Area of Science:
- Mechanical Engineering
- Materials Science
Background:
- Structural damping is crucial for mechanical systems subjected to dynamic loads, as vibrations can impair functionality.
- Passive vibration damping using viscoelastic polymers is a simple and effective method for mitigating unwanted structural vibrations.
Purpose of the Study:
- To develop and evaluate a novel method for passive vibration elimination using 3D-printed polymeric pads.
- To characterize the damping properties of various polymer materials, including thermoplastic elastomers (TPE), for structural applications.
Main Methods:
- Polymeric pads were manufactured using fused filament fabrication (3D printing) and attached via press connection.
- Materials were characterized using differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), tensile testing, and Shore hardness.
- The vibration damping effectiveness of the polymer pads was assessed through dynamic testing.
Main Results:
- The study successfully fabricated and tested 3D-printed polymer pads for vibration damping.
- Characterization revealed distinct viscoelastic and mechanical properties among the tested polymers.
- Dynamic tests demonstrated the efficacy of the polymer pads in reducing structural vibrations.
Conclusions:
- 3D-printed polymeric pads offer a promising solution for passive vibration damping in structures.
- The choice of polymer material significantly influences damping performance.
- This approach provides a versatile and effective strategy for enhancing the dynamic behavior of mechanical structures.
More Related Videos
11:44Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
Published on: August 15, 2014
10.4K
09:51A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure
Published on: February 20, 2019
25.5K
Related Concept Videos
01:22Mechanical Systems
250
Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
250
01:19Vibrating Concrete
149
Mechanical vibrators are instrumental in compacting newly poured concrete within formwork and around reinforcements. This process is essential to eliminate trapped air pockets and establish a dense concrete mass. One widely used method is vibrating by internal vibrators, often referred to as a poker vibrator or immersion vibrator. It is rapidly inserted through the full depth of the freshly laid concrete and slightly extends into the layer below it (which remains in a plastic state). Consistent...
149
01:25Active Filters
885
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
885
01:27Passive Filters
571
Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
571
01:17Magnetic Damping
518
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
518
01:14Mechanical Efficiency of Real Machines
795
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...
795