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Author : Nader Jalili
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (413 download)
Download or read book Optimum Vibration Suppression of Flexible Structures Using Delayed Feedback written by Nader Jalili and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pei-Yen Chen
Publisher :
ISBN 13 :
Total Pages : 452 pages
Book Rating : 4.E/5 ( download)
Download or read book Vibration Suppression of Flexible Structures Using Colocated Velocity Feedback and Nonlocal Actuator Control written by Pei-Yen Chen and published by . This book was released on 1990 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 195 pages
Book Rating : 4.:/5 (227 download)
Download or read book Vibration Suppression in Large Flexible Space Structures Using Active Control Techniques written by and published by . This book was released on 1992 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report investigates the use of active vibration control techniques applied to the PACOSS Dynamic Test Article as an experimental structure. In the course of the research, a mathematical model of the lightly damped experimental structure was created based on experimental data. This model was used in the design of two classes of controllers. The first class is pure rate feedback of the structure's measured states such that global stability is insured. The second type of controller investigated was an optimal controller (LQG) that was created using the truncated mathematical model. The rate feedback controller showed significant improvements in the damping of the structures flexible modes. The optimal controller proved to be stable only for negligible gains and did not improve structural damping significantly.
Author : Daniel Joseph Clancy
Publisher :
ISBN 13 :
Total Pages : 826 pages
Book Rating : 4.:/5 (258 download)
Download or read book Vibration Suppression in a Flexible Space Structure written by Daniel Joseph Clancy and published by . This book was released on 1990 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Irfan Ullah Khan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Vibration Suppression in Flexible Structures Using Hybrid Active and Semi-active Control written by Irfan Ullah Khan and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert B. Bosse
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.:/5 (253 download)
Download or read book Experimental Vibration Suppression of Large Flexible Structures Using Positivity-designed Controllers written by Albert B. Bosse and published by . This book was released on 1991 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Troy Lee Link
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (352 download)
Download or read book Vibration Suppression of Flexible Structures with Parametric Uncertainty Using Interval Control Systems written by Troy Lee Link and published by . This book was released on 1993 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arnauld Douay
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (284 download)
Download or read book Optimal Variable Stiffness Feedback Control for Structural Vibration Suppression written by Arnauld Douay and published by . This book was released on 1993 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vanessa Costanzi
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (729 download)
Download or read book Vibration suppression in a flexible structure written by Vanessa Costanzi and published by . This book was released on 2008 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Srinivasa Rao Chavakula
Publisher :
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.:/5 (394 download)
Download or read book Vibration Control of Flexible Structures Using Nonlinear Devices written by Srinivasa Rao Chavakula and published by . This book was released on 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ayhan S Kammer
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (119 download)
Download or read book Delayed Feedback Control Schemes for Vibration Suppression and Energy Harvesting with Piezoelectric Resonators written by Ayhan S Kammer and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Time delays in feedback control systems have intrigued researchers especially over the past five decades. Some recent studies have discovered that deliberate introduction of delays within certain control laws yields favorable results. This work follows the same philosophy and stems from a pedigree of research where delays are viewed as a tool, and their unique features are exploited. Delayed Resonators use the destabilizing effect of delays to induce resonance in an active vibration absorber, providing complete vibration suppression against time varying tonal disturbances. Inspired by these developments, this work embarks on another exploration on systems that harvest energy from mechanical vibrations. In this research, an analytical framework is developed on generic active mechanical vibration absorbers with delayed feedback control. The interplay between the generated and consumed energy is investigated from a physics viewpoint. It is shown that energy harvesting capacity can be significantly enhanced by introducing a properly designed time-delayed feedback. A critical feature in this work is the use of piezoelectric materials. Considerable research has been devoted to the use of piezoelectric components for both vibration control and energy harvesting. Piezoelectricity provides a bi-directional coupling between mechanical strain and electrical fields. This allows the use of resistive-inductive electrical circuits, which are reconfigured to serve as resonators for mechanical structures. In this work, time-delayed control laws are devised for such systems, primarily to serve two purposes: (a) effective vibration suppression and (b) increased energy harvesting. The essence of the scientific contribution lies at the point that the electrical circuit is actively sensitized to replace a conventional proof-mass absorber (or harvester). This idea could evolve into a design mechanism which has many advantages, such as compactness, reduced weight, and deployment practicality. An experimental setup, consisting of a cantilever beam with piezoelectric patches connected to a shunt circuit, is constructed to demonstrate the core concepts in this effort. Delayed proportional control is applied within the electrical circuit to test the analytical findings. As expected, many practical issues are encountered and addressed during this effort. Favorable experimental results on vibration control and energy harvesting are presented and discussed in detail.
Author : James L. Fanson
Publisher :
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (436 download)
Download or read book An Experimental Investigation of Vibration Suppression in Large Space Structures Using Positive Position Feedback written by James L. Fanson and published by . This book was released on 1987 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael George Hallam
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (118 download)
Download or read book Optimum Vibration Isolation Between Flexible Machines and Foundations written by Michael George Hallam and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Masoud Ansari
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (875 download)
Download or read book Optimal Vibration Control in Structures Using Level Set Technique written by Masoud Ansari and published by . This book was released on 2013 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration control is inevitable in many fields, including mechanical and civil engineering. This matter becomes more crucial for lightweight systems, like those made of magnesium. One of the most commonly practiced methods in vibration control is to apply constrained layer damping (CLD) patches to the surface of a structure. In order to consider the weight efficiency of the structure, the best shape and locations of the patches should be determined to achieve the optimum vibration suppression with the lowest amount of damping patch. In most research work done so far, the shape of patches are assumed to be known and only their optimum locations are found. However, the shape of the patches plays an important role in vibration suppression that should be included in the overall optimization procedure. In this research, a novel topology optimization approach is proposed. This approach is capable of finding the optimum shape and locations of the patches simultaneously for a given surface area. In other words, the damping optimization will be formulated in the context of the level set technique, which is a numerical method used to track shapes and locations concurrently.
Author : Fan Yang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (463 download)
Download or read book Optimal Vibration Suppression of Beam-type Structures Using Passive and Semi-active Tuned Mass Dampers written by Fan Yang and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall aim of this dissertation is to conduct a comprehensive investigation on the design optimization for passive and semi-active vibration suppression of beam-type structures utilizing the Tuned Mass Damper (TMD) and Semi-Active Mass Damper (SAMD) to prevent discomfort, damage or outright structural failure through dissipating the vibratory energy effectively. The finite element model for general curved beams with variable curvatures under different assumptions (including/excluding the effects of the axial extensibility, shear deformation and rotary inertia) are developed and then utilized to solve the governing differential equations of motion for beam-type structures with the attached TMD system. The developed equations of motion in finite element form are then solved through the random vibration state-space analysis method to effectively find the variance of response under stationary random loading. A hybrid optimization methodology, which combines the global optimization method based on Genetic Algorithm (GA) and the powerful local optimization method based on Sequential Quadratic Programming (SQP), is developed and then utilized to find the optimal design parameters (damping, stiffness and position) of the attached single and multiple TMD systems. Based on the extensive numerical investigation, a design framework for vibration suppression of beam-type structures using TMD technology is then presented. An in-house experimental set-up is designed to demonstrate the effectiveness of the developed optimal design approach for vibration suppression of beam-type structures using TMD technology. Next, the Magneto-Rheological (MR) fluid damper is utilized to design the SAMD system. A new hysteresis model based on the LuGre friction model is developed to analyze the dynamic behavior of large-scale MR-damper (MR-9000 type) accurately and efficiently. The gradient based optimization technique and least square estimation method have been utilized to identify the characteristic parameters of MR-damper. Moreover, based on the developed hysteresis model, an effective inverse MR-damper model has also been proposed, which can be readily used in the design of semi-active vibration suppression devices. The controller for SAMD system using MR-damper is designed based on the proposed inverse MR-damper model and H2 /LQG controller design methodology. The developed SAMD system along with the MR-damper model is then implemented to beam-type structures to suppress the vibration. It has been shown that the designed SAMD system using MR-damper can effectively suppress the vibration in a robust and fail-safe manner.
Author : Ronald Korin Pearson
Publisher :
ISBN 13 :
Total Pages : 596 pages
Book Rating : 4.:/5 (16 download)
Download or read book Optimal Velocity Feedback Control of Flexible Structures written by Ronald Korin Pearson and published by . This book was released on 1982 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sa'ad Mahmood Shaker
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (271 download)
Download or read book Attitude Control and Vibration Suppression of Large Flexible Space Structure written by Sa'ad Mahmood Shaker and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
