This research investigates a concept for cut-out resonators that exploit small area of active mass host plate structure sake tuned, low frequency vibration attenuation. Integrated computational and experimental studies reveal embedding the at locations offering high bending moment gradient arranging central resonator beam along nodal line best excite first eigenmode targeted suppression. These ...

this paper evaluates a new and simple controller design method based on qft (quantitative feedback theory) for a two-link manipulator whose first link is rigid and the second is flexible. a piezoelectric patch is attached to the surface of the flexible link for vibration suppression of it. this system is modeled as a nonlinear multi-input multi-output (mimo) control systems whose inputs are two...

background and objective: magnetic resonance imaging (mri) is the most sensitive technique to detect multiple sclerosis (ms) plaques in central nervous system. in some cases, the patients who were suspected to ms, whereas mri images are normal, but whether patients don’t have ms plaques or mri images are not enough optimized enough in order to show ms plaques? the aim of the current study is ev...

Abstract Metamaterials have been extensively studied because of their bandgap characteristics, which can be used in vibration isolation. Current studies on the effect attenuation metamaterials mainly focus amplitude, velocity, and acceleration. The structure intensity is a more effective approach to evaluating vibration. In this study, structural method adopted describe suppression elastic meta...