This paper investigates the problem of estimating the shape or the boundary impedance of a vibrating membrane from acoustic measurements in a limited ...

This paper investigates the problem of estimating parameters of a membrane, such as its shape and its boundary impedance, from acoustic measurements in a ...

Jan 20, 2016 · ABSTRACT. This paper investigates the problem of estimating the shape or the boundary impedance of a vibrating membrane from acoustic.

Using wave-based eigenmode decomposition methods, we have shown that it is possible to estimate the shape of a convex membrane by reinterpreting its boundary as ...

The method operates in 2D and can estimate the shape of an arbitrary domain, e.g., a membrane such as a drum of any shape including non-convex, e.g., ...

MEMBRANE SHAPE AND BOUNDARY CONDITIONS ESTIMATION USING EIGENMODE DECOMPOSITION. Authors: Thibault Nowakowski, Institut Langevin, France; Nancy Bertin, IRISA ...

Abstract. In this work, we study the spectra and eigenmodes of the. Hessian of various discrete surface energies and discuss applications to shape analysis.

Eigenmodes are global mode shapes making the whole gear vibrate except the bore, because the bore nodes are locked using boundary conditions.

both edges free, the membrane eigenmode shapes become more complicated and eigenmodes transition in shape across the stability boundary. We also compare our.

In this paper, we present the method of fundamental solutions applied to the determination of elastic resonance frequencies and associated eigenmodes.