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A local correspondence principle for mode shapes in structural dynamics

open access: yesMechanical Systems and Signal Processing, 2014
It is well known that experimentally obtained mode shapes can be smoothed by using a linear combination. of mode shapes from a finite element (FE) model.
Walter D'Ambrogio   +2 more
exaly   +3 more sources
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Mode shaping in multicore fibers

Optics Letters, 2007
We propose a novel multicore fiber design strategy for obtaining a flat in-phase supermode that optimizes utilization of the active medium inversion in the multiple cores. The spatially flat supermode is achieved by engineering the fiber so that the total mutual coupling between neighboring active cores is equal.
Krishna Mohan, Gundu   +2 more
openaire   +2 more sources

The mode shapes of a tennis racket and the effects of vibration dampers on those mode shapes

The Journal of the Acoustical Society of America, 2009
The vibrational behavior of a tennis racket was studied using a speckle-pattern interferometry system. Specifically, the first 12 mode shapes of a racket are shown and discussed. In addition, the speckle-pattern interferometry system was used to compare the effects of four commercially available vibration damping systems.
Nicholas, Timme, Andrew, Morrison
openaire   +2 more sources

Detection of Soliton Shape Modes in Polyacetylene

Physical Review Letters, 1986
We observed soliton shape modes by photoinduced absorption in partially isomerized ${(\mathrm{CH})}_{x}$ and ${(\mathrm{CD})}_{x}$, coexisting with the soliton translational modes. The shape modes' ir activity, their dependence on the degree of isomerization, and the photoinduced spectra are explained in detail by a symmetry-breaking interaction which ...
, Vardeny   +6 more
openaire   +2 more sources

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