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Keywords: closed loop systems
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Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 2012, 134(2): 021018.
Published Online: January 12, 2012
... dynamics are estimated such that they are dependent on the state and the control input. The optimal control strategy is then derived which minimizes uncertainty of the closed loop system. In the absence of reliable plant models, the proposed control algorithm incorporates uncertainties in model parameters...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 2012, 134(2): 021009.
Published Online: December 30, 2011
... aerospace control aerospace propulsion atmospheric turbulence closed loop systems control system synthesis transfer functions In this paper, atmospheric disturbance models are developed in both the time and the frequency domain. These models are applicable to propulsion system external flow...
Journal Articles
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. March 2012, 134(2): 024503.
Published Online: December 30, 2011
... 30 12 2011 30 12 2011 closed loop systems control system synthesis nonlinear control systems pendulums reduced order systems stability variable structure systems Sliding mode control [( 1 )] has been shown to be a robust and effective nonlinear control approach...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 2012, 134(2): 021004.
Published Online: December 29, 2011
... and integral output feedback H ∞ /passivity stabilizability are proposed for the closed-loop system in terms of matrix inequalities. These new characterizations possess a special monotonic property, which underpin the convergence of a linearized iterative computational algorithm. The effectiveness and merits...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. January 2012, 134(1): 011020.
Published Online: December 6, 2011
... control has been shown to provide all of the benefits of integral control: disturbance rejection, servo tracking, and force estimation. The controller also linearizes the closed-loop system. More importantly, the nonlinear controller is shown to be equivalent to an estimator of the exogenous force...
Journal Articles
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. January 2012, 134(1): 014502.
Published Online: December 5, 2011
... selected modes of full-order model will be attained to guarantee the stability of closed-loop system. It can be seen that for this example the SREM method is more accurate than two other methods. The eigenvalues of the full-order model and reduced ones are compared in Table 4 . It is important...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. November 2011, 133(6): 061020.
Published Online: November 23, 2011
...Matthew B. Greytak; Franz S. Hover First-excursion times have been developed extensively in the literature for oscillators; one major application is structural dynamics of buildings. Using the fact that most closed-loop systems operate with a moderate to high damping ratio, we have derived a new...
Journal Articles
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. November 2011, 133(6): 064501.
Published Online: November 11, 2011
..., the systems under consideration are not uniformly completely observable. Combining the output feedback domination approach and block-backstepping scheme together, a series of linear output feedback controllers are constructed recursively for each subsystems and the closed-loop system is rendered semiglobally...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. November 2011, 133(6): 061007.
Published Online: September 29, 2011
... is then developed based on the combination of symbolic and numerical computation. 15 01 2010 02 03 2011 29 09 2011 29 09 2011 closed loop systems finite element analysis frequency response nonlinear control systems open loop systems transfer functions uncertain systems...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. September 2011, 133(5): 051007.
Published Online: August 1, 2011
... with an in-domain nonlinearity is considered first. For this system a nonlinear feedback law, based on gain scheduling, is derived explicitly, and a proof of local exponential stability, with an estimate of the region of attraction, is presented for the closed-loop system. Control designs (without proofs...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. September 2011, 133(5): 051006.
Published Online: August 1, 2011
... not use any fault detection and isolation mechanism to detect, separate, and identify the actuator faults online. The attitude orientation and angular velocity of the closed-loop system asymptotically converge to zero despite actuator faults providing the nominal attitude system is asymptotically stable...
Journal Articles
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. July 2011, 133(4): 044504.
Published Online: April 11, 2011
... simulations. 16 12 2008 28 10 2010 11 04 2011 11 04 2011 closed loop systems gas sensors Recent advances in extremum seeking have shown it to be a powerful tool in real time nonmodel based control and optimization ( 1 2 3 4 5 6 ). Success has been achieved...
Topics: Sensors
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. May 2011, 133(3): 031009.
Published Online: March 25, 2011
... delays in S-C and C-A links. The closed-loop system is further formulated as a special jump linear system. The sufficient and necessary condition to guarantee the stochastic stability is derived. Simulation studies and experimental tests for an experimental hydraulic position control system are presented...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. May 2011, 133(3): 031005.
Published Online: March 24, 2011
... 24 03 2011 24 03 2011 closed loop systems combustion diesel engines Kalman filters least squares approximations pressure sensors recursive estimation For the past decade, diesel engine technology has rapidly evolved to the point of being considered an alternative to hybrid...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. May 2011, 133(3): 031001.
Published Online: March 23, 2011
.... This model based approach to cylinder imbalance estimation has several advantages over the current empirically based methods including robustness and ease of calibration. 01 03 2010 15 10 2010 23 03 2011 23 03 2011 closed loop systems engines exhaust systems feedback...
Journal Articles
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. March 2011, 133(2): 024502.
Published Online: February 22, 2011
... stability of the closed-loop system is analyzed in detail, and a stability condition is proposed. Simulations are given to demonstrate the excellent tracking and disturbance rejection capabilities of the UDE-based control strategy. 24 03 2009 23 09 2010 22 02 2011 22 02 2011...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 2011, 133(2): 021001.
Published Online: February 11, 2011
... and uncertain time-delay flexible structure systems. The algorithm is based on the sliding mode control and H ∞ / μ techniques. This scheme guarantees closed-loop system stability, and yields good performance and robustness in the presence of parametric uncertainties, time-delays and external disturbances...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. January 2011, 133(1): 011011.
Published Online: December 22, 2010
... 22 12 2010 22 12 2010 closed loop systems control system synthesis electromagnets pistons pneumatic systems pressure control valves High pressure is an important development orientation in pneumatic field since it can not only improve dynamic characteristics of pneumatic...
Journal Articles
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. January 2011, 133(1): 014506.
Published Online: December 2, 2010
..., and subsequently controllers are scheduled by adopting a certain interpolation procedure. The proposed controller ensures the stability and robust L 2 -performance of the closed-loop system due to vertex property of the polytopic LPV shaped plant. The effectiveness of the design method has been illustrated through...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. January 2011, 133(1): 011005.
Published Online: November 24, 2010
... 2010 asymptotic stability closed loop systems feedback linear systems Markov processes observers predictive control As a class of stochastic hybrid systems, Markovian jump linear systems (MJLSs) have received much attention in recent years. By the stochastic switching feature, MJLS...