Results 221 to 230 of about 67,126 (262)
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Electronic excitation transport as a probe of chain flexibility
Macromolecules, 1984Revue de la fonction de Green a l'aide de l'approximant de Pade. L'approximation peut etre utilisee pour obtenir des mesures quantitatives de la flexibilite de chaine statistique a partir de la depolarisation de ...
Glenn H. Fredrickson +2 more
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Vibration of a Beam Excited by a Moving Flexible Body
Applied Mechanics and Materials, 2006The vibration of a beam excited by a moving simple oscillator is an extensively studied problem. However, the vibration of a beam excited by an elastic body with conformal contact has attracted much less attention. This is the subject of the present paper.
Hua Jiang Ouyang, John E. Mottershead
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Underwater Propulsion Using Forced Excitation of a Flexible Beam
Journal of Vibration and Acoustics, 2023Abstract Aquatic animals commonly oscillate their fins, tails, or other structures to propel and control themselves in water. These elements are not perfectly rigid, so the interplay between their stiffness and the fluid loading dictates their dynamics.
Sanders Aspelund +3 more
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The dynamics of a “flexible-rotor/limited-power-excitation-source” system
Journal of Applied Mathematics and Mechanics, 2009zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Verichev, N. N. +2 more
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Control of a Parametrically Excited Flexible Beam Undergoing Rotation and Impacts
Multibody System Dynamics, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marghitu, Dan B. +2 more
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The ‘Indian rope trick’ for a parametrically excited flexible rod: linearized analysis
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2000Extract from authors' abstract: It is well known that if a column exceeds a certain critical length it will, when placed upright, buckle under its own weight. Recent experiments demonstrate that a column that is longer than its critical length can be stabilized by subjecting its bottom support point to a vertical vibration of appropriate amplitude and ...
Champneys, AR, Fraser, WB
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Nonlinear Dynamics of a Transversely Excited Flexible Cantilever Beam
Volume 3A: 15th Biennial Conference on Mechanical Vibration and Noise — Vibration of Nonlinear, Random, and Time-Varying Systems, 1995Abstract Some experimental results concerning the nonlinear dynamics of a transversely excited beam are presented. The excitation is harmonic. A frequency sweep around the fourth natural frequency of the beam reveals some interesting modal interactions. The first phenomenon is the transfer of energy from the fourth mode, approximately 33.
Mahmood Tabaddor, Ali H. Nayfeh
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The Excitability of Flexible Rotors in Short Sleeve Bearings
Journal of Lubrication Technology, 1975Assuming the short bearing approximation and constant lubricant properties, the root loci of the pertinent characteristic function were obtained for the linearized model of a simple symmetric flexible rotor bearing system. Using these loci, design maps consisting of lines of constant damping and vibration frequency pertaining to the dominant roots are ...
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Stability and Control of Flexible Spacecraft with Parametric Excitation
IFAC Proceedings Volumes, 1978Abstract The analysis and control of flexible spacecraft has attracted considerable attention in recent years; in particular with ever increasing demands for fine pointing accuracy and larger and more complex vehicles, this problem is becoming more significant.
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On a theory for the vortex-excited oscillations of flexible cylindrical structures
Journal of Sound and Vibration, 1975The periodic shedding of vortices that accompanies the cross-flow past a bluff cylindrical body can excite the body into resonant transverse oscillations when the vortex shedding frequency and a body natural frequency are sufficiently close to one another.
Skop, R. A., Griffin, O. M.
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