Abstract: A variational mathematical model is developed using Hamilton’s principle to describe the dynamics of beams fully-treated with Active Constrained Layer Damping (ACLD) treatments. The resulting ...

Abstract: Conventional passive periodic structures exhibit unique dynamic characteristics that make them act as mechanical filters for wave propagation. As a result, waves can propagate along the periodic ...

Abstract: A new class of distributed sensors is presented which can measure both the linear and angular deflections of composite beams. The sensor relies in its operation on a set of wires which are ...

Abstract: Considerable interest has been devoted to the development of various classes of acoustic metamaterials. Acoustic metamaterials are those structurally engineered materials that are composed of ...

Abstract: Longitudinal wave propagation is controlled using shape memory inserts placed periodically along rods. The inserts act as sources of impedance mismatch with tunable characteristics. Such characteristics ...

Abstract: Conventional Passive Constrained Layer Damping (PCLD) treatments with viscoelastic cores are provided with built-in sensing and actuation capabilities to actively control and enhance their vibration ...

Abstract: Model predictions of time histories of the temperature and humidity ratio within a hyperbaric chamber under conditions of compression and decompression are presented with and without vortex ...

Abstract: The onset of self-excited oscillations is developed theoretically for a traveling wave thermo-acoustic-piezoelectric (TAP) energy harvester. The harvester is intended for converting thermal energy, ...

Abstract: This study deals with the development of an orientation device that enables the working diver to control and maintain automatically his spatial orientation underwater. The device can be useful ...

Abstract: This study deals with the development of an automatically controlled depth-seeking system that enables the scuba diver to reach and maintain a predetermined depth. The system utilizes an inflatable ...