Professor Ruzzene’s group investigates both active and passive strategies through the application of smart materials, and the determination of structural configurations with inherent vibration attenuation characteristics. A variety of techniques for vibration reduction and self-noise mitigation have been applied to underwater vehicles and supercavitating torpedoes, to mitigate interior noise in rotorcraft, and to minimize vibrations of rotorblades or of rotating machinery. Periodic structures are assemblies of identical components, or cells. Examples include crystals, proteins, composites, micro-truss materials, as well as stiffened shells or plates and trusses used extensively in civil, mechanical and aerospace constructions. These periodic assemblies are often denoted as ‘phononic crystals’ or ‘metamaterials’.
keywords
metamaterials, wave propagation, vibrations, structural dynamics, structural health monitoring, active and passive vibration control
