1. Semi-analytical modeling of anchor loss in plate-mounted resonators.
- Author
-
Schaal, Christoph, M'Closkey, Robert, and Mal, Ajit
- Subjects
Anchor loss ,FEM ,Lamb waves ,Micro-resonator ,Semi-analytical ,Acoustics ,Classical Physics ,Materials Engineering ,Mechanical Engineering - Abstract
A semi-analytical technique for estimating the energy loss in a resonator mounted to an infinite plate substrate is proposed in this paper. In a plate, only Lamb waves have to be considered, leading to a simplified characterization of the energy carried away from a vibrating source on the plate surface. Instead of employing absorbing elements at the boundaries of the plate-resonator finite element model, it is shown how the semi-analytical approach of stitching together analytical Lamb wave expressions to the finite element model can be utilized. The approach is demonstrated for single and double cantilever configurations on a plate. The results have excellent agreement with those of conventional transient finite element simulations.
- Published
- 2018