Introduction to Dynamics and Control of Flexible Structures

Introduction to Dynamics and Control of Flexible Structures PDF Author: John L. Junkins
Publisher: AIAA
ISBN: 9781600860799
Category : Large space structures (Astronautics)
Languages : en
Pages : 478

Get Book Here

Book Description

Introduction to Dynamics and Control of Flexible Structures

Introduction to Dynamics and Control of Flexible Structures PDF Author: John L. Junkins
Publisher: AIAA
ISBN: 9781600860799
Category : Large space structures (Astronautics)
Languages : en
Pages : 478

Get Book Here

Book Description


Vibration Control of Active Structures

Vibration Control of Active Structures PDF Author: A. Preumont
Publisher: Springer Science & Business Media
ISBN: 1402004966
Category : Technology & Engineering
Languages : en
Pages : 376

Get Book Here

Book Description
My objective in writing this book was to cross the bridge between the structural dynamics and control communities, while providing an overview of the potential of SMART materials for sensing and actuating purposes in active vibration c- trol. I wanted to keep it relatively simple and focused on systems which worked. This resulted in the following: (i) I restricted the text to fundamental concepts and left aside most advanced ones (i.e. robust control) whose usefulness had not yet clearly been established for the application at hand. (ii) I promoted the use of collocated actuator/sensor pairs whose potential, I thought, was strongly underestimated by the control community. (iii) I emphasized control laws with guaranteed stability for active damping (the wide-ranging applications of the IFF are particularly impressive). (iv) I tried to explain why an accurate pred- tion of the transmission zeros (usually called anti-resonances by the structural dynamicists) is so important in evaluating the performance of a control system. (v) I emphasized the fact that the open-loop zeros are more difficult to predict than the poles, and that they could be strongly influenced by the model trun- tion (high frequency dynamics) or by local effects (such as membrane strains in piezoelectric shells), especially for nearly collocated distributed actuator/sensor pairs; this effect alone explains many disappointments in active control systems.

Active Control of Flexible Structures

Active Control of Flexible Structures PDF Author: Alberto Cavallo
Publisher: Springer
ISBN: 9781447157076
Category : Technology & Engineering
Languages : en
Pages : 0

Get Book Here

Book Description
A complete solution for problems of vibration control in structures that may be subject to a broadband primary vibration field, this book addresses the following steps: experimental identification of the dynamic model of the structure; optimal placement of sensors and actuators; formulation of control constraints in terms of controller frequency response shape; controller design and simulation; and controller implementation and rapid prototyping. The identification procedure is a gray-box approach tailored to the estimation of modal parameters of large-scale flexible structures. The actuator/sensor placement algorithm maximizes a modal controllability index improving the effectiveness of the control. Considering limitations of sensors and actuators, the controller is chosen as a stable, band-pass MIMO system resulting from the closed-form solution of a robust control problem. Experimental results on an aeronautical stiffened skin panel are presented using rapid-prototyping hardware.

Active Control of Structures

Active Control of Structures PDF Author: Andre Preumont
Publisher: John Wiley & Sons
ISBN: 0470715715
Category : Science
Languages : en
Pages : 312

Get Book Here

Book Description
With Active Control of Structures, two global pioneers present the state-of-the-art in the theory, design and application of active vibration control. As the demand for high performance structural systems increases, so will the demand for information and innovation in structural vibration control; this book provides an effective treatise of the subject that will meet this requirement. The authors introduce active vibration control through the use of smart materials and structures, semi-active control devices and a variety of feedback options; they then discuss topics including methods and devices in civil structures, modal analysis, active control of high-rise buildings and bridge towers, active tendon control of cable structures, and active and semi-active isolation in mechanical structures. Active Control of Structures: Discusses new types of vibration control methods and devices, including the newly developed reduced-order physical modelling method for structural control; Introduces triple high-rise buildings connected by active control bridges as devised by Professor Seto; Offers a design strategy from modelling to controller design for flexible structures; Makes prolific use of practical examples and figures to describe the topics and technology in an intelligible manner.

Active Control of Flexible Structures and Manipulators

Active Control of Flexible Structures and Manipulators PDF Author: Orestis I. Tsakalotos
Publisher:
ISBN:
Category :
Languages : en
Pages : 295

Get Book Here

Book Description


Modeling and Active Control of Large Flexible Structures

Modeling and Active Control of Large Flexible Structures PDF Author: Constantinos Minas
Publisher:
ISBN:
Category :
Languages : en
Pages : 432

Get Book Here

Book Description


Characterization of and Active Control of Flexible Structures, Using Piezoceramics as Sensors and Actuators

Characterization of and Active Control of Flexible Structures, Using Piezoceramics as Sensors and Actuators PDF Author: Jiaqi Song
Publisher:
ISBN:
Category : Flexible structures
Languages : en
Pages : 146

Get Book Here

Book Description


Rigid-Flexible Coupling Dynamics and Control of Flexible Spacecraft with Time-Varying Parameters

Rigid-Flexible Coupling Dynamics and Control of Flexible Spacecraft with Time-Varying Parameters PDF Author: Jie Wang
Publisher: Springer Nature
ISBN: 9811650977
Category : Technology & Engineering
Languages : en
Pages : 190

Get Book Here

Book Description
This book presents the dynamic modeling and attitude control of flexible spacecraft with time-varying parameters. The dynamic characteristics, vibration control methods and attitude stabilization methods for spacecraft are systematically studied in respects of the theoretical modeling, numerical simulation and the ground experiment. Three active control theories in complex mode space are presented for flexible space structures. Optimal slew strategies based on variable amplitudes input shaping methods and coupling control methods are proposed for stabilization of flexible spacecraft. The research provides an important way to solve the problem of high-precision attitude control of flexible spacecraft with time-varying parameters. This book is appropriate for the researchers who focus on the multi-body dynamics, attitude and vibration control of flexible spacecraft.

Vibration Control of Active Structures

Vibration Control of Active Structures PDF Author: A. Preumont
Publisher: Springer Science & Business Media
ISBN: 9401156549
Category : Technology & Engineering
Languages : en
Pages : 277

Get Book Here

Book Description
I was introduced to structural control by Raphael Haftka and Bill Hallauer during a one year stay at the Aerospace and Ocean Engineering department of Virginia Tech., during the academic year 1985-1986. At that time, there was a tremendous interest in large space structures in the USA, mainly because of the Strategic Defense Initiative and the space station program. Most of the work was theoretical or numerical, but Bill Hallauer was one of the few experimen talists trying to implement control systems which worked on actual structures. When I returned to Belgium, I was appointed at the chair of Mechanical Engi neering and Robotics at ULB, and I decided to start some basic vibration control experiments on my own. A little later, smart materials became widely available and offered completely new possibilities, particularly for precision structures, but also brought new difficulties due to the strong coupling in their constitutive equations, which requires a complete reformulation of the classical modelling techniques such as finite elements. We started in this new field with the sup port of the national and regional governments, the European Space Agency, and some bilateral collaborations with European aerospace companies. Our Active Structures Laboratory was inaugurated in October 1995.

An Intelligent Framework for Modelling and Active Vibration Control of Flexible Structures

An Intelligent Framework for Modelling and Active Vibration Control of Flexible Structures PDF Author: Siti Zaiton Mohd Hashim
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description