Broadband low-frequency sound isolation by lightweight adaptive metamaterials

Engineering

• Analytical Model 50%
• Broadband Noise 50%
• Couplings 100%
• Demonstrates 50%
• Engineering Application 50%
• Lightweight Material 50%
• Piezoelectric 50%
• Piezoelectric Stack 50%
• Resonator 100%
• Sound Insulation 50%
• Sound Transmission Loss 50%
• Spring Stiffness 50%
• Transmissions 50%

Physics

• Acoustic Frequency 100%
• Coupled Mode 20%
• Energy Gaps (Solid State) 20%
• Metamaterial 100%
• Piezoelectricity 40%
• Resonator 40%
• Sound Insulation 20%
• Sound Transmission 20%

Material Science

• Electronic Circuit 20%
• Metamaterial 100%
• Piezoelectricity 40%
• Resonator 40%
• Sound Insulation 20%