Results 271 to 280 of about 40,475 (306)

Upper Bounds for Amplitudes of Harmonic Components of Excitation

Journal of Applied Mechanics, 1979
The amplitude of the nth harmonic component of a known waveform has upper bounds which can be derived from inspection of the waveform. By indicating when the Fourier analysis of (for example) vibratory excitations can be circumvented, this technique may usefully shorten iterative or desk-top design calculations.
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Second-harmonic resonance with Faraday excitation

Wave Motion, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Forster, G. K., Craik, A. D. D.
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Even-order harmonic excitation by an acoustic

Ferroelectrics, 1995
Abstract By the use of an acoustic superlattice LiNbO3 crystal, even-order harmonics are excited through the piezoelectric effect. The thicknesses of positive domain and negative domain being not equal are the origin of the phenomenon.
null Superlattice, Shi-De Cheng, Yong-Yuan Zhu, Nai-Ben Ming   +3 more
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Bicomplex Harmonic and Isotonic Oscillators: The Excited States

Advances in Applied Clifford Algebras, 2017
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Bifurcations of an oscillator to two‐harmonic excitation

Communications in Applied Numerical Methods, 1990
AbstractThe incremental harmonic balance method has been successful for harmonic excitation. It is extended to determine the steady‐state solutions of a non‐linear oscillator subject to periodic (two‐harmonic) excitation. Higher‐order subharmonic solutions result from bifurcations.
A. Y. T. Leung, T. C. Fung
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Collapse of SDOF System to Harmonic Excitation

Journal of Engineering Mechanics, 1985
The investigation of the dynamic collapse behavior of structures during strong wind disturbances provides a rational foundation for estimating the safety factor of structures. In order to discuss the essential features of dynamic collapse behavior, the analyric and numerical studies are carried out on the dynamic behavior of single‐degree‐of‐freedom ...
Shuzo Ishida, Kiyotaka Morisako
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Energetics of the excitation of nearly harmonic superoscillations

JETP Letters, 2017
The energy for creating a temporal train of nearly harmonic superoscillations is studied. It is shown that the power of sources necessary for creating the train of such superoscillations increases exponentially with the number of periods in the train and with the frequency of superoscillations.
I. V. Doronin, A. A. Pukhov, A. P. Vinogradov   +2 more
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Covariant harmonic oscillators and diffractive excitations

Physical Review D, 1975
We use convariant harmonic-oscillator wave functions to describe quark-model hadrons in Glauber's model of diffractive scattering. It is shown that the Glauber model can be constructed in the center-of-mass system in terms of fully covariant quantities.
Y. S. Kim, Marilyn E. Noz
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Operational modal analysis under harmonic excitation using Ramanujan subspace projection and stochastic subspace identification

Journal of Sound and Vibration, 2023
Mingqiang Xu, Francis T K Au, Shuqing Wang   +2 more
exaly  

Excitation of higher harmonics in a plasma

Radiophysics and Quantum Electronics, 1975
V. A. Buts, S. M. Krivoruchko
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