Results 271 to 280 of about 112,798 (305)

Transient Response of a Rotor in Damped Bearings

Journal of Mechanical Design, 1978
In this paper, the transient response of a rotor subjected to a general forcing function is presented. The rotor model permits any number of in-span bearings, which include stiffness, damping, and mass properties. The excitation forces may include distributed loadings along the rotor as well as transient bearing base motion.
W. D. Pilkey, J. S. Strenkowski, P. Y. Chang   +2 more
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A Note on Hysteretic Damping of Transient Motions

1986
Abstract Hysteretic damping is usually defined by reference to sinusoidal motion and is strictly indefensible if it is used for non-sinusoidal motions. Elaborating on a paper which recently appeared in Strojnicky Casopis (On hysteretic damping of non-sinusoidal motion), this note suggests that this type of damping can be defined in such a way as to ...
R.E.D. BISHOP, W.G. PRICE
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Analysis of transient and asymptotic behavior in relativistic Landau damping

Physics of Plasmas, 1995
Relativistic electrostatic oscillations in a collisionless nonmagnetized plasma are considered. An integral form of the Vlasov–Poisson problem is solved numerically and both the transient and the asymptotic behavior of the electric field are calculated in a very accurate way.
SARTORI C, COPPA, Gianni
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Investigation of Gaseous Acoustic Damping Rates by Transient Grating Spectroscopy

AIAA Journal, 2002
An investigation of acoustic damping ratesin a pressurized gaseous medium by analyzing thetemporal behavior of laser-induced gratings is reported. Experiments were performed in various nonresonant gas samples as a function of pressure and grating spacing. Acoustic damping rates were determined through model e ts to the acquired signals.
Y. Li, W. L. Roberts, M. S. Brown
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Experimental Investigation of the Damping Behavior of the Particle Damping in the Transient Vibrations

Journal of The Institution of Engineers (India): Series C, 2015
Particle damping is a non linear type of damping in which energy of the vibratory system is dissipated by the impact and the frictional losses made by the particles used for the damping purposes. The particle damping technique is useful over other types of damping as it is temperature independent. So it is reliable over wide temperature range and hence
Shrirang Pandurang Chavan, Arvind Kamalakar Kale, Faiz Abdulkadar Mulla   +2 more
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Synergy between control strategies of SVC damping controller and transient stability, power oscillation damping

2015 International Conference on Electrical Engineering and Information Communication Technology (ICEEICT), 2015
By using flexible AC transmission system (FACTS) devices in the power system it is possible to control the voltage at the buses and the power flowing through the lines. Just introducing a FACTS device in the system will decrease the damping of the inter-area modes.
Md. Masum Howlader, Aziz Un Nur Ibn Saif, Md. Shoaib Shahriar   +2 more
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Transient damping torques in synchronous machines during disturbances

Proceedings of the Institution of Electrical Engineers, 1969
During power-system disturbances, the relative speed between the resultant flux and the rotor causes eddy currents to be induced in the rotor iron structure and an induction-motor or induction-generator torque to be developed owing to the amortisseur winding; both these effects damp out the synchronousmachine oscillations.
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Response Bounds for Nonclassically Damped Mechanical Systems Under Transient Loads

Journal of Applied Mechanics, 1987
Time-decaying upper bounds are derived for the response of damped linear mechanical systems under impulsive loads and under step loads. The bounds are expressed in terms of the extreme eigenvalues of the symmetric, positive definite constituent system matrices. The system is assumed to exhibit nonclassical damping by which we mean that classical normal
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Transient properties of radiation damping

Progress in Nuclear Magnetic Resonance Spectroscopy, 2002
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Transient upcrossings of a lightly damped oscillator

Advances in Applied Probability, 1979
A. M. Hasofer, P. Petocz
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