Numerical simulation data for the dynamic properties of rainbow metamaterials

Area of Science:

• Mechanical Engineering
• Materials Science
• Acoustics

Background:

• Rainbow metamaterials offer broadband multi-frequency vibration attenuation.
• Understanding their dynamic properties is crucial for effective design and application.
• Previous studies have explored their numerical and experimental validation.

Purpose of the Study:

• To provide simulation data for analyzing the dynamic properties of rainbow metamaterials.
• To numerically calculate frequency response functions and mode shapes.
• To offer insights into the underlying vibration mechanisms.

Main Methods:

• Finite Element (FE) models were developed using Ansys Mechanical APDL.
• Harmonic analysis was performed to determine receptance function values (0-500 Hz).
• Modal analysis was used to estimate mode shapes.

Main Results:

• Frequency response functions and mode shapes of rainbow metamaterials were numerically calculated.
• Receptance function values were obtained within the 0-500 Hz frequency range.
• Mode shapes correlate with peaks and dips in the receptance curve, explaining vibration behavior.

Conclusions:

• Finite Element simulation is an effective method for estimating dynamic properties.
• Mode shape analysis provides direct insights into vibration mechanisms, complementing analytical models.
• The provided data facilitates further research and design optimization of rainbow metamaterials.