17848757. FLEXURAL WAVE ABSORBERS FOR WAVE AND VIBRATION ISOLATION IN THIN WALLED STRUCTURES simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
FLEXURAL WAVE ABSORBERS FOR WAVE AND VIBRATION ISOLATION IN THIN WALLED STRUCTURES
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Xiaopeng Li of Ann Arbor MI (US)
Taehwa Lee of Ann Arbor MI (US)
FLEXURAL WAVE ABSORBERS FOR WAVE AND VIBRATION ISOLATION IN THIN WALLED STRUCTURES - A simplified explanation of the abstract
This abstract first appeared for US patent application 17848757 titled 'FLEXURAL WAVE ABSORBERS FOR WAVE AND VIBRATION ISOLATION IN THIN WALLED STRUCTURES
Simplified Explanation
The patent application describes a flexural wave absorber that uses a metasurface with beam strips and coupled resonators to absorb different frequency ranges of flexural waves.
- The flexural wave absorber includes a metasurface with an inner portion, an outer portion, and beam strips connecting them.
- The metasurface has coupled resonators on the beam strips, which can be lossy or lossless resonators.
- Each beam strip can have multiple pairs of coupled resonators that work at different frequency ranges.
- The flexural wave absorber can absorb flexural waves at various frequencies by adjusting the resonators on the beam strips.
Potential Applications
- Noise reduction in buildings and structures
- Vibration damping in machinery and equipment
- Acoustic insulation in vehicles and aircraft
Problems Solved
- Absorbing flexural waves at different frequencies efficiently
- Providing a flexible and customizable solution for wave absorption
Benefits
- Effective absorption of flexural waves at different frequency ranges
- Customizable design for specific applications
- Improved noise reduction and vibration damping capabilities
Original Abstract Submitted
A flexural wave absorber includes a metasurface with an inner portion, an outer portion, and a plurality of beam strips extending between the inner portion and the outer portion. The metasurface also includes a plurality of coupled resonators disposed on the plurality of beam strips. The plurality of coupled resonators can include a lossy resonator and a lossless resonator, two lossy resonators and a lossless resonator, or a lossy resonator and two lossless resonators. In addition, each of the plurality of beam strips can have multiple pairs of coupled resonators disposed thereon that work at or absorb different frequency ranges.
