... of the closed-loop system. Finite element models of large-scale flexible structures are usually built with a large amount of degrees of freedom (DOFs), and spend a lot of time, memory, and money to run such huge models. Therefore, an effective reduced model is necessary for structural control. The problem...

... links. 13 05 2010 18 07 2011 02 12 2011 02 12 2011 couplings delays flexible structures manipulators motion control shock absorbers stability vibration control High performance manipulators usually need employing lightweight links to reduce inertia forces...

... is formulated by using Hamilton’s principles and assumed mode method, taking into account the second-order term of the coupling deformation field. For highly flexible structural models, ideal surface sliding that produces pure rigid body motion may not be achievable. In this paper, the discontinuity...

...Thomas E. Alberts; Aravind M. Hanasoge; Ashraf M. Omran This paper presents a simple analysis evaluating the stability threshold for magnetically levitated flexible structures using dissipative colocated controllers. It is shown that with such a control structure, the controller that stabilizes...

...M. C. Pai; A. Sinha The input shaping technique has proven to be highly effective in reducing or eliminating residual vibration of flexible structures. The exact elimination of the residual vibration via input shaping depends on the amplitudes and instants of utilized impulses. However, systems...

... of this combination for attitude stabilization and flexible structural vibrations suppression. In addition, the time responses of estimated parameters are shown in Fig. 3 for the above deficient cases. Note that the convergence of the estimates can be achieved, but to the real values, as seen in Fig. 3...

... ) Z − 1 + γ Z − 2 where K 0 and γ are the center frequency of the filter and the constant parameter, respectively. 25 12 2008 11 02 2010 18 06 2010 18 06 2010 adaptive control aircraft flexible structures stability vibration...

..., permitting the generation of near-globally optimal shaped profiles. To illustrate the proposed technique, a deflection-limited/residual energy constrained, controller design for flexible structures undergoing rest-to-rest maneuvers will be presented. Techniques for improving robustness by the addition...

...Angelo Bonfitto; Xavier De Lépine; Mario Silvagni; Andrea Tonoli The aim of this paper is to investigate the potential of a self-sensing strategy in the case of an electromagnetic damper for the vibration control of flexible structures and rotors. The study has been performed in the case...

... 0022-4650 , 10 ( 12 ), pp. 790 – 797 . 10.2514/3.61970 Su , T. -J. , Babuska , V. , and Craig , R. R. , Jr. , 1995 , “ Substructure-Based Controller Design Method for Flexible Structures ,” J. Guid. Control Dyn. 0731-5090 , 18 ( 5 ), pp. 1053 – 1061 . 10.2514/3.21504...

... with conventional positive position feedback. 02 07 2008 22 12 2008 27 04 2009 closed loop systems damping feedback flexible structures open loop systems piezoelectric actuators piezoelectricity vibration control vibrations active control vibration compensation positive...

... 2008 23 03 2009 flexible structures motion control robust control vibration control The control of flexible machines has been, and will continue to be, an active area of research because all machines exhibit flexibility when pushed to their performance limits. Input shaping...

... represents the desired reference trajectory. Motion-planning results for strings and flexible structures without Kelvin–Voigt (KV) damping—internal/material damping—have been presented in Refs. 11 12 13 14 15 16 . This work considers systems with KV damping since...

...Marco P. Schoen; Randy C. Hoover; Sinchai Chinvorarat; Gerhard M. Schoen This paper is concerned with the problem of identifying and controlling flexible structures. The structures used exhibit some of the characteristics found in large flexible space structures (LFSSs). Identifying LFSS...

... maneuver. It is shown that the results of the linear programming problem are nearly identical to that of the nonlinear programming problem. 04 05 2007 13 05 2008 04 08 2008 control system synthesis flexible structures linear programming minimax techniques robust control shape...

.... Output oscillations need to be small in scanning operations, particularly for lightly damped systems, such as the piezoelectric actuators and the flexible structures. Moreover, modeling errors are ubiquitous in practical applications. The proposed approach extends the recently developed optimal scan...

... damping eddy currents electromagnetic forces electromagnets flexible structures magnetic circuits magnetic flux rotors structural engineering turbomachinery vibration control eddy current dampers electromechanical interaction vibration control rotordynamics dynamic of structures...

...Abhishek Dhanda; Gene Franklin In the rest-to-rest motion of a flexible structure with limited torque or force, it is sometimes important to control the vibrations during the move trajectory as well as at the final time. In order to achieve this control, the duration of the move must be set...

... Using Non-Diagonal Controllers ,” Int. J. Control 0020-7179 , 61 , pp. 245 – 253 . Kerr , M. L. , 2004 , “ Robust Control of an Articulating Flexible Structure Using MIMO QFT .” Australia , The University of Queensland . Lan , C. , Kerr , M. L. , and Jayasuriya , S...

... flexible structures projectiles The use of surface-mounted or bonded piezoelectric actuators for the shape control of intelligent structure has gained widespread acceptance recently. Applications can be found in many areas including the shape control of metallic or composite plates or beams ( 1 2...