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Examples of flexural waves are waves in a tuning fork, in the sounding boards of musical instruments, and in the exit cones of loudspeakers and those that arise during vibration of thin-wall mechanical structures (the frames of airplanes and motor vehicles, the roofs and walls of buildings, and other objects).
System for improving acoustic performance of a panel using a metamaterial
Disclosed are systems that utilize metamaterials to improve the acoustic performance of a panel, such as a glass panel used in automotive applications. In one example, the system may include a panel having an exterior edge and a metamaterial attached adjacent to the exterior edge of the panel. The metamaterial is configured to minimize the reflection coefficient of flexural waves acting upon the panel.
Owner:TOYOTA MOTOR ENG & MFG NORTH AMERICA INC