Results 281 to 290 of about 431,603 (313)

On mode shapes of a stability problem

Journal of Sound and Vibration, 1976
Abstract This paper presents data of mode shapes of some stable and unstable modes of a free-free beam under direction controlled thrusts. These mode shapes are pertinent in understanding this basic problem and hitherto were not available in the literature. It has been found that the node number of the mode shape corresponding to the first divergence
openaire   +2 more sources

Shaped Input Control of a System With Multiple Modes

Journal of Dynamic Systems, Measurement, and Control, 1993
This paper describes a method for limiting vibration in flexible systems that have more than one characteristic frequency and mode. It is only necessary to have knowledge of the component mode frequencies and damping ratios in order to be able to calculate the timing and magnitudes of the impulse sequence used in the shaping.
Singh, T., Heppler, G. R.
openaire   +2 more sources

Lasing modes in a spiral-shaped dielectric microcavity

Optics Letters, 2006
The resonance patterns and lasing modes in a spiral-shaped dielectric microcavity are investigated through passive and active medium calculations. We find that the high-Q resonance modes are whispering-gallery-like modes, and these resonance modes can be easily excited as lasing modes.
Tea-Yoon, Kwon, Soo-Young, Lee, Michael S, Kurdoglyan, Sunghwan, Rim, Chil-Min, Kim, Young-Jai, Park   +5 more
openaire   +2 more sources

An approach for estimating mode shape for participation of inter-area oscillation mode

2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013
This paper presents a novel approach for estimating mode shape for participation (MSFP) among areas or main power plants involving inter-area oscillation (IAO) mode, by analyzing power deviation (ΔP) signals. The case study has been carried out on a planning case in East China Power Grid (ECPG).
Song Han, Na Rong, Ting Sun, Jing Zhang
openaire   +1 more source

An Elasticity Approach to Principal Modes of Shape Variation

2009
Concepts from elasticity are applied to analyze modes of variation on shapes in two and three dimensions. This approach represents a physically motivated alternative to shape statistics on a Riemannian shape space, and it robustly treats strong nonlinear geometric variations of the input shapes.
Martin Rumpf, Benedikt Wirth
openaire   +1 more source

Noise Sensitivity of Mode Shape and Mode Shape Difference to Damage Detection

2022
Muyideen Abdulkareem, Abideen Ganiyu
openaire   +1 more source

On Adiabatic Normal Modes in a Wedge-Shaped Sea

Journal of Mathematical Sciences, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Spectral shaping and waveguide modes in retinal cones

Vision Research, 1975
Abstract Analytic approximations for the waveguide mode intensity distributions, photographed by Enoch in retinal cones, are suggested. Using this representation the power coupled into each of these modes per unit wave number is calculated for an incident plane wave.
openaire   +2 more sources

MODE SHAPES

1969
ANTHONY E. ARMENÀKAS, DENOS C. GAZIS, GEORGE HERRMANN   +2 more
openaire   +1 more source

Mode shape prediction based on convolutional neural network and autoencoder

Structures, 2022
Kejian Hu, Xiaoguang Wu
exaly