Results 181 to 190 of about 4,342 (233)

Reliable reconstruction of cricket song from biophysical models and preserved specimens. [PDF]

R Soc Open Sci
Weiner R, Duke S, Simonelli G, Bailey NW, Mhatre N.   +4 more
europepmc   +1 more source

Enhancement of signal-to-noise ratio at a high-order exceptional point of coherent perfect absorption. [PDF]

Nat Commun
Wang ZQ, Sun YM, Hu YD, Wang YP, Shen RC, Wu WJ, You JQ.   +6 more
europepmc   +1 more source

Dirac bound states in the continuum in honeycomb photonic crystal slabs. [PDF]

Sci Rep
Chern RL, Kao YC, Hwang RR.
europepmc   +1 more source

The perpendicular gyroscope: modal analysis of plate, beam and gyroscope multistructures. [PDF]

Philos Trans A Math Phys Eng Sci
Madine KH, Colquitt DJ.
europepmc   +1 more source

A note on eigenfrequency sensitivities and structural eigenfrequency optimization based on local sub-domain frequencies

Structural and Multidisciplinary Optimization, 2013
Sensitivity (gradient) of a structural eigenfrequency with respect to a change in density (thickness) of a sub-domain is derived in a simple explicit form. The sub-domain is often an element of a finite element (FE) model, but may be a broader sub-domain, say with a group of elements. This simple result has many applications.
Pauli Pedersen, Niels L Pedersen, Pedersen Pauli   +2 more
exaly   +3 more sources

Shape optimization for the eigenfrequency of the plate

Georgian Mathematical Journal, 2017
Abstract In this paper, we consider an eigenvalue problem for the biharmonic operator that describes the transverse vibrations of the plate. Under the imposed boundary conditions, the eigenvalues of this operator are indeed eigenfrequencies of the clamped plate.
Gasimov, Yusif S., Allahverdiyeva, Natavan A.   +1 more
openaire   +3 more sources

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Eigenfrequency optimization in optimal design

Computer Methods in Applied Mechanics and Engineering, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gregoire Allaire, François Jouve
exaly   +3 more sources

Eigenfrequency constrained topology optimization of finite strain hyperelastic structures

Structural and Multidisciplinary Optimization, 2020
This paper incorporates hyperelastic materials, nonlinear kinematics, and preloads in eigenfrequency constrained density–based topology optimization. The formulation allows for initial finite deformations and subsequent small harmonic oscillations.
Anna Dalklint, Mathias Wallin, Daniel A Tortorelli   +2 more
exaly   +3 more sources

The pull-in instability and eigenfrequency variations of a graphene resonator under electrostatic loading

Mathematics and Mechanics of Solids, 2022
A continuum membrane model is presented to describe the pull-in instability and eigenfrequency variations of a graphene resonator under an electrostatic loading.
Ya-Pu Zhao
exaly   +3 more sources

Multi-material topology optimization of laminated composite beams with eigenfrequency constraints [PDF]

Composite Structures, 2014
This paper describes a methodology for simultaneous topology and material optimization in optimal design of laminated composite beams with eigenfrequency constraints. The structural response is analyzed using beam finite elements.
JOSÉ Pedro Blasques
exaly   +2 more sources