Results 311 to 320 of about 34,421 (359)
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Electrohydraulic Active Damping System
CIRP Annals, 2005A major characteristic of machine tools is the relative dynamic flexibility at the tool centre point. Poorly damped resonance frequencies often cause self-excited vibrations, so called chatter vibrations, which derogate the machined surface and may cause tool breakage.
C. Brecher, A. Schulz, M. Week
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Active vibration damping device
The Journal of the Acoustical Society of America, 2008An active vibration damping device having a solenoid actuator designed with a movable element positioned inserted into a guide hole of a stator having a yoke member is attached about a coil to form a stator-side magnetic path with the guide hole lying on its center axis, so that current passed through the coil creates actuating force in the axial ...
Hiroyuki Ichikawa, Yoshinori Watanabe
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Active Damping of Driveline Oscillation
IFAC Proceedings Volumes, 2004Abstract This controller approach describes a method for active damping of torsional vibrations in a vehicle driveline during clutch engagement. The problem of oscillations appears in a wide range of drivelines equipped with an automated clutch capacity controller, e.g. continuously variable automatic transmission (CVT), automated manual transmission
Andreas Schwenger +3 more
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Active and passive magnetic constrained damping treatment
International Journal of Solids and Structures, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zheng, Huiming, Li, Ming, He, Zeng
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DAMPs activating innate immune responses in sepsis
Ageing Research Reviews, 2015Sepsis refers to the deleterious and non-resolving systemic inflammatory response of the host to microbial infection and is the leading cause of death in intensive care units. The pathogenesis of sepsis is highly complex. It is principally attributable to dysregulation of the innate immune system.
Jung-Woo Kang +3 more
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Active vibration damping system
The Journal of the Acoustical Society of America, 2009A system (100, 200, 300) for damping vibrations of a vibratory structure (104, 308). The damping system includes an active damper (112, 124, 128, 216), a vibration sensor (116, 208, 208A′-C′), and a controller (120, 212) for controlling the active damper in a manner that damps vibration of the vibratory structure. In some embodiments, the active damper
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Arrangement for active sound damping
The Journal of the Acoustical Society of America, 1996It is known in the state of the art to dampen noise emissions by means of "anti-sound". In the gas exhaust installations of combustion machines, this is realized most often in that the exhaust gas flowing in the gas exhaust installation is charged with "anti-sound" produced by loudspeakers (12).
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Regions of Active Damping Control for LCL Filters
IEEE Transactions on Industry Applications, 2012The control of a grid connected voltage source inverter (VSI) with an LCL filter is a very challenging task, since the LCL network causes a resonance phenomenon near to the control stability boundary. While many active damping methods have been proposed to overcome this issue, the role that PWM transport delay plays in the effectiveness of these ...
S. G. Parker +2 more
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Active Control for Vibration Damping
1988Active control laws are developed for an LSS-type structure to damp vibrations. High frequency modelling uncertainties lead to the necessity for a robust control design. The Linear Quadratic Gaussian with Loop Transfer Recovery (LQG/LTR) control design technique is a particular robust design technique selected for use in designing a damping control ...
P. J. Lynch, Siva S. Banda
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Active slosh control and damping - Simulation and experiment
Acta Astronautica, 2019Future reignitable cryogenic upper stages perform long ballistic coasting phases in earth orbit. During those coasting phases, the tanks are loaded with liquid propellants and propellant sloshing occurs due to external disturbances or attitude change maneuvers.
Konopka, Martin +5 more
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