Results 221 to 230 of about 37,191 (267)
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Control of Exponentially Damped Sinusoidal Signals
2007 American Control Conference, 2007An internal model based adaptive algorithm for canceling disturbances composed of sums of exponentially damped sinusoidal (EDS) signals is presented. The time varying state variables of an internal model principle controller in a feedback loop can provide estimates of the EDS signal parameters, the frequency and the damping factor.
Jin Lu 0005, Lyndon J. Brown
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Exact Controllability of the Damped Wave Equation
SIAM Journal on Control and Optimization, 1997Summary: We study the controllability problem for a distributed parameter system governed by the damped wave equation \[ u_{tt}-\frac{1}{\rho(x)}\frac{d}{dx}\left(p(x)\frac{du}{dx}\right)+ 2d(x)u_t+q(x)u=g(x)f(t), \] where \(x\in(0,a)\), with the boundary conditions \[ u(0)=0,\quad (u_x+hu_t)(a)=0,\quad h\in{\mathbb C}\cup\{\infty\}.
Shubov, Marianna A. +3 more
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Journal of Alloys and Compounds, 1994
Abstract An approach to higher damping by positively utilizing computer-aided control techniques has been investigated by comparing the relative magnitudes of active (computer-controlled) damping and material damping. The active damping effect increases the damping capacity of a brass beam vibration system from δif=0.012 (logarithmic decrement value ...
Hisashi Kawabe, Kazunobu Yoshida
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Abstract An approach to higher damping by positively utilizing computer-aided control techniques has been investigated by comparing the relative magnitudes of active (computer-controlled) damping and material damping. The active damping effect increases the damping capacity of a brass beam vibration system from δif=0.012 (logarithmic decrement value ...
Hisashi Kawabe, Kazunobu Yoshida
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The controllability of fractional damped dynamical systems with control delay
Communications in Nonlinear Science and Numerical Simulation, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Binbin He, Hua-Cheng Zhou, Chunhai Kou
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Batiment International, Building Research and Practice, 1982
The processes at work in walls affected by rising damp are not well enough understood, the author argues. The mechanical, electrical and thermal forces do not behave as laboratory experiments suggest, and control techniques must take account of the fact that old masonry can achieve its own ordered-state, with an increased capacity for ‘pumping’.
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The processes at work in walls affected by rising damp are not well enough understood, the author argues. The mechanical, electrical and thermal forces do not behave as laboratory experiments suggest, and control techniques must take account of the fact that old masonry can achieve its own ordered-state, with an increased capacity for ‘pumping’.
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ELEVATOR VIBRATION DAMPING SYSTEM HAVING DAMPING CONTROL
The Journal of the Acoustical Society of America, 2012A vibration damping system for an elevator is provided with a damping device ( 5 ) that is provided between a cab ( 1 ) and a car frame ( 2 ) for supporting the cab ( 1 ) and whose damping coefficient can be changed. A speed detector detects the traveling speed of a reference elevator car, and a calculation unit ( 15 ) receiving the traveling speed ...
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A predictive control solution for driveline oscillations damping
Proceedings of the 14th international conference on Hybrid systems: computation and control, 2011This paper deals with the problem of damping driveline oscillations, which is crucial to improving driveability and passenger comfort. Recently, this problem has received an increased interest due to the introduction in several production vehicles of the dual-clutch powershift automatic transmission with dry clutches. This type of transmission improves
Constantin Florin Caruntu +4 more
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On the stability of the hybrid-damped resolved-acceleration control
Journal of Robotic Systems, 1998This paper points out that the stability analysis of hybrid-damped resolved-acceleration control presented in an earlier work by the same authors [ibid. 14, No. 8, 581-601 (1997; Zbl 0894.70018)] was incomplete, since the stability was concluded directly from the fact that the joint velocities come to rest as the time approaches infinity.
Shir-Kuan Lin, Sun-Li Wu
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Interline power flow controller based damping controllers for damping low frequency oscillations
INTELEC 2009 - 31st International Telecommunications Energy Conference, 2009This paper presents the establishment of the linearized Phillips-Heffron model of a power system installed with an Interline Power Flow Controller (IPFC). A damping controllers based on the Phillips-Heffron model are designed for damping low frequency oscillations in a power system with considering four alternative IPFC based damping controllers ...
M. R. Banaei, A. Kami
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Design of Switching Damping Control for Smart Structure Self-Powered Adaptive Damping Control
ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 2010This paper presents a new damping control circuit which named adaptive VSPD [1] (adaptive velocity-controlled switching piezoelectric damping) that can be used to vary control voltage of VSPD damping circuit with the amplitude variation and be self-powered itself as well.
Chao-Ting Wu +3 more
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