Author: Yuan LiPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Optimal Design Methodologies for Passive Vibration Suppression
Author: Yuan LiRobust optimal design using passive and active methods of vibration control
Author: David Keith AnthonyOptimal Design of Passive Systems for Beam Vibration Control
Author: Anthony HladunOptimal Vibration Suppression of Beam-type Structures Using Passive and Semi-active Tuned Mass Dampers
Author: Fan YangPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
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.
Analysis and Optimal Design of Passive Vibration Isolators Using Hydraulic Engine Mounts
Author: Jason Alan ChristophersonPublisher:
ISBN:
Category : Motor vehicles
Languages : en
Pages : 386
Book Description
Comprehensive Investigation on Active-Passive Hybrid Isolation and Tunable Dynamic Vibration Absorption
Author: Fei WangPublisher: Springer
ISBN: 9811330565
Category : Technology & Engineering
Languages : en
Pages : 190
Book Description
This book discusses efforts to control the low-frequency vibration transmission of typical power equipment and pipeline systems of ships, exploring the use of active and passive hybrid vibration isolation and adjustable dynamic vibration absorption technologies. It also proposes an adaptive feed-forward control strategy and studies a distributed feed-forward control hardware system. In addition, the book presents a three-way dynamic vibration absorption theory used to design a pipeline-system adjustable dynamic vibration absorber, which offers a number of advantages, such as compact structure, easy assembly and disassembly, low power consumption, excellent vibration control effect and wide frequency band adjustable ability, etc. This book is a valuable resource for researchers and engineers in the fields of noise and vibration control, active control systems, active vibration isolation and adaptive dynamic vibration absorption.
Theory of Vibration Protection
Author: Igor A. KarnovskyPublisher: Springer
ISBN: 3319280201
Category : Technology & Engineering
Languages : en
Pages : 708
Book Description
This text is an advancement of the theory of vibration protection of mechanical systems with lumped and distributed parameters. The book offers various concepts and methods of solving vibration protection problems, discusses the advantages and disadvantages of different methods, and the fields of their effective applications. Fundamental approaches of vibration protection, which are considered in this book, are the passive, parametric and optimal active vibration protection. The passive vibration protection is based on vibration isolation, vibration damping and dynamic absorbers. Parametric vibration protection theory is based on the Shchipanov-Luzin invariance principle. Optimal active vibration protection theory is based on the Pontryagin principle and the Krein moment method. The book also contains special topics such as suppression of vibrations at the source of their occurrence and the harmful influence of vibrations on humans.“p> Numerous examples, which illustrate the theoretical ideas of each chapter, are included. This book is intended for graduate students and engineers. It is assumed that a reader has working knowledge of theory of vibrations, differential equations, andcomplex analysis. About the Authors. Igor A Karnovsky, Ph.D., Dr. Sci., is a specialist in structural analysis, theory of vibration and optimal control of vibration. He has 40 years of experience in research, teaching and consulting in this field, and is the author of more than 70 published scientific papers, including two books in Structural Analysis (published with Springer in 2010-2012) and three handbooks in Structural Dynamics (published with McGraw Hill in 2001-2004). He also holds a number of vibration-control-related patents. Evgeniy Lebed, Ph.D., is a specialist in applied mathematics and engineering. He has 10 years of experience in research, teaching and consulting in this field. The main sphere of his research interests are qualitative theory of differential equations, integral transforms and frequency-domain analysis with application to image and signal processing. He is the author of 15 published scientific papers and a US patent (2015).
Building Control with Passive Dampers
Author: Izuru TakewakiPublisher: John Wiley & Sons
ISBN: 0470824921
Category : Technology & Engineering
Languages : en
Pages : 322
Book Description
The recent introduction of active and passive structural control methods has given structural designers powerful tools for performance-based design. However, structural engineers often lack the tools for the optimal selection and placement of such systems. In Building Control with Passive Dampers , Takewaki brings together most the reliable, state-of-the-art methods in practice around the world, arming readers with a real sense of how to address optimal selection and placement of passive control systems. The first book on optimal design, sizing, and location selection of passive dampers Combines theory and practical applications Describes step-by-step how to obtain optimal damper size and placement Covers the state-of-the-art in optimal design of passive control Integrates the most reliable techniques in the top literature and used in practice worldwide Written by a recognized expert in the area MATLAB code examples available from the book’s Companion Website This book is essential for post-graduate students, researchers, and design consultants involved in building control. Professional engineers and advanced undergraduates interested in seismic design, as well as mechanical engineers looking for vibration damping techniques, will also find this book a helpful reference. Code examples available at www.wiley.com/go/takewaki
Recent Advances in the Design of Structures with Passive Energy Dissipation Systems
Author: Giuseppe RicciardiPublisher: MDPI
ISBN: 3039360604
Category : Technology & Engineering
Languages : en
Pages : 266
Book Description
Passive vibration control plays a crucial role in structural engineering. Common solutions include seismic isolation and damping systems with various kinds of devices, such as viscous, viscoelastic, hysteretic, and friction dampers. These strategies have been widely utilized in engineering practice, and their efficacy has been demonstrated in mitigating damage and preventing the collapse of buildings, bridges, and industrial facilities. However, there is a need for more sophisticated analytical and numerical tools to design structures equipped with optimally configured devices. On the other hand, the family of devices and dissipative elements used for structural protection keeps evolving, because of growing performance demands and new progress achieved in materials science and mechanical engineering. This Special Issue collects 13 contributions related to the development and application of passive vibration control strategies for structures, covering both traditional and innovative devices. In particular, the contributions concern experimental and theoretical investigations of high-efficiency dampers and isolation bearings; optimization of conventional and innovative energy dissipation devices; performance-based and probability-based design of damped structures; application of nonlinear dynamics, random vibration theory, and modern control theory to the design of structures with passive energy dissipation systems; and critical discussion of implemented isolation/damping technologies in significant or emblematic engineering projects.
Design Optimization of Active and Passive Structural Control Systems
Author: Nikos D. LagarosPublisher:
ISBN: 9781466620315
Category : Structural control (Engineering)
Languages : en
Pages : 396
Book Description
"This book addresses the design optimization of active and passive control systems including earthquake engineering and tuned mass damper research topics and their link"--