Vibration control of active structures springerlink. Vibration control of active structures solid mechanics. For active vibration control strategy, the structure should be smart enough to sense external disturbances and react accordingly. Oct 11, 2017 these mechanical assemblies are designed to dampen vibration affecting the platform on which a video camera is mounted. Vibration control of active structures solid mechanics and its applications volume 179series editor. Introduction to active vibration control avc traditional applications problems with avc. In 1980s, the usages of large structures as the components of the space vehicles were resulted in new challenges in vibration control since these structures are lightly damped and have long decay times. Jun 01, 2001 in this paper, the emphasis is placed on providing the passive structures with active control capabilities in order to tune the spectral width and location of the pass and stop bands in response to the structural vibration. Ansysmultiphysics can be used to model piezoelectric and structural fields. Active vibration control strategy has been successfully implemented for vibration attenuation of beam, plate and shell structures by numerous researchers. Get your kindle here, or download a free kindle reading app. Rossell1 abstractin this work, a systematic strategy to design. Stability is provided by the selfstress state between tensioned and compressed elements. An introduction solid mechanics and its applications v.
A traditional control problem depends on a reliable plant model to derive control laws from observers. Upon modeling and frequency solving work aforementioned, the active vibration control of membrane structures was also investigated. The active rotary inertia driver arid system is a novel vibration control system that can effectively mitigate the swing vibration of suspended structures. Use features like bookmarks, note taking and highlighting while reading vibration control of active structures. Passivedamping design for vibration control of large structures francisco palaciosqui. Implementation considerations for active vibration control in. Each step in the design process is illustrated with results from the advanced composites with embedded sensors and actuators acesa vibration control system. Semiactive vibration control of smart isolated highway. Active vibration control is defined as a technique in which the vibration of a structure is reduced or controlled by applying counter force to the structure that is appropriately out of phase but equal in amplitude to the. Search for library items search for lists search for contacts search for a library. This chapter is intended to give a flavor of active vibration control and, at the same time, to illustrate how active control is primarily based on understanding the system dynamics, rather than. A host of the researchers have used the approach of modal sensor and modal actuator 45 for active vibration control but in this paper, the vibration control is achieved by using direct feedback. They concluded that a smart structure with large scale piezoelectric actuators could perform the same active control in stronger excitation than the hybrid mass damper could.
Download it once and read it on your kindle device, pc, phones or tablets. Active vibration control technique was implemented during the development of the controllers. Active control of platelike structures for vibration and. Chapters 2 and 3 are devoted to the dynamics of active structures. Active and passive vibration control of structures peter. With this application, a precision industrial process can be maintained on a platform essentially vibration free. 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. Researchers were motivated to design and implement active vibration control to these lightly damped structures with piezoelectric materials.
This book is intended for structural engineers who want to acquire some background in vibration control. Chapter 12 discusses the semi active control, including some materials on magnetorheological fluids. In light of modebased and wavebased theory, the current prevailing active control methods include the boundary control, the inplane control, and the hybrid control combining the former two methods. Hybrid active vibration control of helicopter fuselage. In order to overcome the limitations of the traditional tmd, the semi active tuned mass damper stmd and the active tuned mass damper atmd or the active mass damper amd were proposed. Before considering such active vibroacoustic control systems in a later chapter, we. Chapter describes various practical applications to active damping, precision positioning and vibroacoustics, and chapter 14 discusses the active damping of cable structures. Feb 25, 2016 using large scale piezoelectric actuator for active vibration control on an actual nine storey building of steel frame structure 31 m in height and 273 t total mass. Adeli and jiang present soft computing theories and strategies for intelligent transportation systems and smart structures. Chapter 3 active intelligent control abstract in this chapter, principles and classifications of active intelligent control systems are introduced firstly, and basic contents of the active mass control system and selection from intelligent vibration control in civil engineering structures book. As the demand for high performance structural systems increases, so will the demand for information and innovation in structural vibration control. Jul 25, 2011 this text is an introduction to the dynamics of active structures and to the feedback control of lightly damped flexible structures. The goal should be to achieve the best performance with minimum cost.
The paper describes techniques for designing and implementing active damping systems for large optical support structures. Noshadi, a, shi, j, lee, sl 2015 robust control of an active magnetic bearing system using h. Structure vibration in different modes was measured using pvdf membrane sensors for feedback control and to investigate the vibration reduction effect achieved with three individual controllers. A solutions manual is available through the publisher to teachers using this book as a textbook. Some issues in active vibration control of smart structures. One of the reasons for actively controlling the vibration of a structure may be to reduce its sound radiation. Smart structures and their applications on active vibration. The vibration data obtained through experimental rig was used to model the system using system identification technique based on autoregressive with exogenous input model. Semi active control takes advantages of both passive and active control to enhance the vibration reduction as it has the ability to adapt similar to the active controller and also to dissipate energy similar to a passive. Vibration control of active structures solid mechanics and.
On the active passive vibration control actions of structures with active constrained layer treatments, asme design engineering technical conferences, 843, pp. Mar 10, 2017 in this lecture following topics are covered. I wanted to keep it relatively simple and focused on. Tensegrities are lightweight structures composed of cables and struts. The active control system under investigation consists of an inertial actuator attached to a lightweight. Now in its third edition, more chapters have been added, and comments and feedback from. Vibration control of active structures solid mechanics and its applications. Active vibration control of structure by active mass. Active and passive vibration control of structures form an issue of very actual interest in many different fields of engineering, for example in the automotive and aerospace industry, in precision engineering e. Vibration control conferences in 2020 is for the researchers, scientists, scholars, engineers, academic, scientific and university practitioners to present research activities that might want to attend events, meetings, seminars, congresses, workshops, summit, and symposiums. Nov 26, 2018 a piezoelectric stack actuator has the advantages of light weight, a large driving force, small driving displacement, a wide working frequency range, and a fast response speed. Vibration control through passive constrained layer damping. An introduction chapter pdf available in meccanica 962 april 1999 with 2,159 reads. Absolute instantaneous optimal control performance index for.
It can be used as a textbook for a graduate course on vibration control or active structures. Active vibration control is the active application of force in an equal and opposite fashion to the forces imposed by external vibration. Jul 18, 2014 active vibration control avc is one of the important branches of control theory and application. An introduction solid mechanics and its applications a.
Active vibration control in mechanical systems hindawi. Periodic structures, whether passive or active, are structures that consist of identical substructures, or cells, connected in an identical manner as shown in figures 10. Active vibration control of smart structures the active vibration control of smart aerospace structures that inherently exhibit flexibility becomes more important when the designers attempt to push with the state of the art, faster and lighter structures for aerospace applications 7. Analysis of active vibration control in smart structures by. Vibration control of active structures an introduction andre. This book is intended for structural engineers who want to acquire some background in vibration control, and for control engineers who are dealing with flexible structures. An introduction solid mechanics and its applications preumont, andre on. Active control of structures mechanical engineering special. Passive vibration control solutions like tuned vibration absorbers are often limited to tackle a single structural resonance or a specific disturbance frequency.
In realizing smart structures, the competences from various fields in todays engineering sciences need to be combined as shown in fig. Active vibration control of piezoelectric intelligent structures. Solid mechanics and its applications vibration control of active structures an introduction fourth edition. Pdf active and passive vibration damping download full. 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. Pdf dynamic analysis and vibration control of an active. Nonlinear vibration control effects of membrane structures. Vibration control of active structures an introduction. Implementation considerations for active vibration control.
Vibration control of active structures solid mechanics and its applications preumont, a. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Active control of periodic structures journal of vibration. In earthquake engineering, vibration control is a set of technical means aimed to mitigate seismic impacts in building and nonbuilding structures. Abstractthe study of the applications of piezoelectric materials in the active vibration control of flexible structures has been ongoing for more than a decade. Actuators, piezoelectric materials, and active structures. Active vibration control of civil structures unt digital. Active control of structures civil engineering community. Absolute velocity and absolute displacement terms are implemented to the conventional state vector terms and eventually to the resulting performance index expression.
Raja and narayanan 29 considered the optimum placement of the actuator for vibration control to a tensegrity structure by using different control strategies. Vibration control of active structures ebook, 2002. In order to develop an active structure also known as smart. An introduction solid mechanics and its applications book 246. Ruggiero, title active dynamic analysis and vibration control of gossamer structures using smart materials, year 2002. 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. Active vibration control of a horizontal flexible plate. The plate and piezopatches finite element model of the structure is constructed and the closed loop control is applied. An important subject in vibration control of large structures is the placement of control and sensor devices. Analysis of active vibration control in smart structures. Many precision industrial processes cannot take place if the machinery is being affected by vibration. Ruggiero and harry robertshaw and donald leo and walter f.
In some applications, active isolation systems like the table stable systems available from herzan can deliver the required performance, while passive isolation systems are adequate for applications which are not so sensitive. Active and passive vibration control of structures. Active vibration control systems can overcome these limitations, yet requiring continuously electrical energy for a sufficient performance. The pros and cons of active vibration reduction control were also examined in. The seismic response reduction effectiveness of the proposed performance index. Active vibration control of structures using a leader. Download fulltext pdf vibration control of active structures. Active vibration control systems, also called active vibration isolation or active vibration cancellation, are isolation systems that dynamically react to incoming vibrations. This text is an introduction to the dynamics of active structures and to the feedback control of lightly damped flexible structures. Active vibration control an overview sciencedirect topics. Wireless sensor networks for active vibration control in.
Implementation considerations for active vibration control in the design of floor structures. Comparison of passive and active vibration isolation systems. Wireless sensor networks for active vibration control in automobile structures this article has been downloaded from iopscience. Active vibration control of large optical space structures. All seismic vibration control devices may be classified as passive, active or hybrid where. A piezoelectric stack actuator has the advantages of light weight, a large driving force, small driving displacement, a wide working frequency range, and a fast response speed. That is, they sense incoming vibrations and react to them, rather than passively reducing their effect by virtue of their mechanical structure. Pdf vibration control of active structures researchgate. Pdf swing vibration control of suspended structure using. Active multimode vibration control of a smart structure.
The aim of this study was to achieve active vibration reduction and control by the use of sensors and peas. Download now active and passive vibration control of structures form an issue of very actual interest in many different fields of engineering, for example in the automotive and aerospace industry, in precision engineering e. In this paper, an instantaneous optimal control performance index for active control of structures under seismic excitation is analytically proposed. The block diagram of the analysis is shown in figure 3. Citeseerx active dynamic analysis and vibration control of. Low frequency resonance problems are common in all passive vibration isolation systems. Active and passive vibration control of structures form an issue of very actual interest in many different fields of engineering, for example in the automotive and aerospace industry, in precision.
An introduction solid mechanics and its applications. For active vibration control of a structure as a plant, it is imperative that an accurate mathematical model exists which delineates its dynamic characteristics. Placement of control devices for passive, semiactive, and. With active control of structures, two global pioneers present the stateoftheart in the theory, design and application of active vibration control. Hybrid active vibration control of helicopter fuselage driven. Pdf download vibration control of active structures. Both technologies utilize the electronic circuit and control board to sense the motion of structure and to activate the control force. In this section, the active vibration control in smart structures is simulated by ansys. With active control of structures, two global pioneers present the state of theart in the theory, design and application of active vibration control. The active damper effectively cancels out resonant vibration. Passivedamping design for vibration control of large structures. Thus, in some cases, a passive vibration control system is still preferable. Avc mainly combines active vibration control mechanism with advanced control algorithms to improve system performance and reduce the influence of vibrations.
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