Author : Michael Nosonovsky
Publisher : CRC Press
Page : 332 pages
File Size : 48,39 MB
Release : 2013-08-09
Category : Science
ISBN : 1466504048
Many scientists and engineers do not realize that, under certain conditions, friction can lead to the formation of new structures at the interface, including in situ tribofilms and various patterns. In turn, these structures-usually formed by destabilization of the stationary sliding regime-can lead to the reduction of friction and wear. Friction-I
Author : L. Frýba
Publisher : Springer Science & Business Media
Page : 507 pages
File Size : 36,28 MB
Release : 2013-04-18
Category : Technology & Engineering
ISBN : 9401196850
Transport engineering structures are subjected to loads that vary in both time and space. In general mechanics parlance such loads are called moving loads. It is the aim of the book to analyze the effects of this type of load on various elements, components, structures and media of engineering me chanics. In recent years all branches of transport have experienced great advances characterized by increasingly higher speeds and weights of vehicles. As a result, structures and media over or in which the vehicles move have been subjected to vibrations and dynamic stresses far larger than ever before. The author has studied vibrations of elastic and inelastic bodies and structures under the action of moving loads for many years. In the course of his career he has published a number of papers dealing with various aspects of the problem. On the strength of his studies he has arrived at the conclusion that the topic has so grown in scope and importance as to merit a comprehensive treatment. The book is the outcome of his attempt to do so in a single monograph.
Author : Gang Sheng
Publisher : CRC Press
Page : 0 pages
File Size : 19,6 MB
Release : 2007-12-19
Category : Technology & Engineering
ISBN : 9781420051780
The impact of friction-induced vibrations varies industry by industry. In the automotive industry, it affects the reliability and quality of mechanical components. For magnetic hard drives, it can affect stability. Over the last two decades, much research has been dedicated to addressing this critical area, and while the results have been significant, until now, this research has remained scattered throughout the literature. A Unified Framework: Both Elegant and Applicable Bringing together recent research and advances from several industries, Friction-Induced Vibrations and Sound presents a unified theoretical framework that engineers and researchers will find immediately applicable. Drawing on his in-depth experience in the data storage, electronics, and automotive industries, as well as his involvement with academic research, Gang Sheng presents a complete survey of this interdisciplinary subject. In the first chapters he offers a theoretical basis for friction induced vibrations. He explains the underlying principles, while also delving into methods for analyzing vibration and sound at the nano-, micro-,and macroscale levels. Sheng reinforces these concepts by taking a thoughtful look at friction-induced vibrations and sound in nature and everyday life. The latter chapters examine critical engineering applications in the data storage and automotive industries. Here Sheng illustrates the impact of advances in modeling and experimental analysis. He elaborates with detailed coverage of acoustic emission techniques used in computer hard disk drive systems, as well as noise control in automotive belt drive and brake systems. As the first comprehensive resource of its kind, this volume provides a grounding that will allow those in industry to address their specific challenges with vibration and sound. It also provides the stimulation and a starting point for those researchers looking to develop new solutions to problems that persist in the field.
Author : Alper Erturk
Publisher : John Wiley & Sons
Page : 377 pages
File Size : 34,74 MB
Release : 2011-04-04
Category : Technology & Engineering
ISBN : 1119991358
The transformation of vibrations into electric energy through the use of piezoelectric devices is an exciting and rapidly developing area of research with a widening range of applications constantly materialising. With Piezoelectric Energy Harvesting, world-leading researchers provide a timely and comprehensive coverage of the electromechanical modelling and applications of piezoelectric energy harvesters. They present principal modelling approaches, synthesizing fundamental material related to mechanical, aerospace, civil, electrical and materials engineering disciplines for vibration-based energy harvesting using piezoelectric transduction. Piezoelectric Energy Harvesting provides the first comprehensive treatment of distributed-parameter electromechanical modelling for piezoelectric energy harvesting with extensive case studies including experimental validations, and is the first book to address modelling of various forms of excitation in piezoelectric energy harvesting, ranging from airflow excitation to moving loads, thus ensuring its relevance to engineers in fields as disparate as aerospace engineering and civil engineering. Coverage includes: Analytical and approximate analytical distributed-parameter electromechanical models with illustrative theoretical case studies as well as extensive experimental validations Several problems of piezoelectric energy harvesting ranging from simple harmonic excitation to random vibrations Details of introducing and modelling piezoelectric coupling for various problems Modelling and exploiting nonlinear dynamics for performance enhancement, supported with experimental verifications Applications ranging from moving load excitation of slender bridges to airflow excitation of aeroelastic sections A review of standard nonlinear energy harvesting circuits with modelling aspects.
Author : Orang Vahid-Araghi
Publisher : Springer Science & Business Media
Page : 220 pages
File Size : 49,1 MB
Release : 2010-10-14
Category : Technology & Engineering
ISBN : 1441917527
Friction-Induced Vibration in Lead Screw Drives covers the dynamics of lead screw drives with an emphasis on the role of friction. Friction-induced vibration in lead screws can be the cause of unacceptably high levels of audible noise as well as loss of operation accuracy and shortened life. Although lead screw drives have a long history and their mechanical design and manufacturing aspects are very well understood, the role of friction in their dynamical behavior has not been comprehensively treated. The book draws on the vast body of work on the subject of dynamical systems with friction (such as disk brake systems) and offers said treatment, along with: · Unique coverage of modeling of multi-DOF lead screw systems with friction · Detailed analysis of negative damping, mode coupling, and kinematic constraint instability mechanisms in lead screws drives · A practical parameter identification approach for the velocity dependent coefficient of friction in lead screw drives Friction-Induced Vibration in Lead Screw Drives serves as the definitive text on the friction-induced vibration of lead screws, and includes a practical case study where the developed methods are used to study the excessive noise problem of a lead screw drive system and to put forward design modifications that eliminate the friction-induced vibrations.
Author : Gang Sheng Chen
Publisher : Elsevier
Page : 409 pages
File Size : 48,6 MB
Release : 2014-07-10
Category : Technology & Engineering
ISBN : 0857094599
Friction-vibration interactions are common but important phenomena in science and engineering. Handbook of Friction-Vibration Interactions introduces the principles and provides the resources to understand and work with them. A unified theoretical framework includes some of the most important engineering applications. The first three chapters in the book introduce basic concepts and analytical methods of friction and vibration. The fourth chapter presents the general principles on friction-vibration interactions, and also touches on various engineering applications. In the fifth chapter the concepts and methods are extended to some of the most critical engineering applications in high-tech industry, presenting the friction-vibration interaction principle and applications in data storage systems. - Covers a key topic in science and engineering, with applications in daily life - Introduces the principles of friction-vibration interactions - Analyzes, presents experiments, and treats real systems ranging from nano to micro to macro scales
Author : Vladimir P. Sergienko
Publisher : Springer
Page : 258 pages
File Size : 29,7 MB
Release : 2014-09-30
Category : Technology & Engineering
ISBN : 3319113348
The book analyzes the basic problems of oscillation processes and theoretical aspects of noise and vibration in friction systems. It presents generalized information available in literature data and results of the authors in vibroacoustics of friction joints, including car brakes and transmissions. The authors consider the main approaches to abatement of noise and vibration in non-stationary friction processes. Special attention is paid to materials science aspects, in particular to advanced composite materials used to improve the vibroacoustic characteristics of tribopairs The book is intended for researchers and technicians, students and post-graduates specializing in mechanical engineering, maintenance of machines and transport means, production certification, problems of friction and vibroacoustics.
Author : David Thompson
Publisher : Elsevier
Page : 535 pages
File Size : 39,7 MB
Release : 2008-12-11
Category : Technology & Engineering
ISBN : 0080914438
Railways are an environmentally friendly means of transport well suited to modern society. However, noise and vibration are key obstacles to further development of the railway networks for high-speed intercity traffic, for freight and for suburban metros and light-rail. All too often noise problems are dealt with inefficiently due to lack of understanding of the problem. This book brings together coverage of the theory of railway noise and vibration with practical applications of noise control technology at source to solve noise and vibration problems from railways. Each source of noise and vibration is described in a systematic way: rolling noise, curve squeal, bridge noise, aerodynamic noise, ground vibration and ground-borne noise, and vehicle interior noise. - Theoretical modelling approaches are introduced for each source in a tutorial fashion - Practical applications of noise control technology are presented using the theoretical models - Extensive examples of application to noise reduction techniques are included Railway Noise and Vibration is a hard-working reference and will be invaluable to all who have to deal with noise and vibration from railways, whether working in the industry or in consultancy or academic research. David Thompson is Professor of Railway Noise and Vibration at the Institute of Sound and Vibration Research, University of Southampton. He has worked in the field of railway noise since 1980, with British Rail Research in Derby, UK, and TNO Institute of Applied Physics in the Netherlands before moving to Southampton in 1996. He was responsible for developing the TWINS software for predicting rolling noise. - Discusses fully the theoretical background and practical workings of railway noise - Includes the latest research findings, brought together in one place - Forms an extended case study in the application of noise control techniques
Author : Bart Hopkin
Publisher : CRC Press
Page : 452 pages
File Size : 24,45 MB
Release : 2021-08-04
Category : Computers
ISBN : 1000360652
Sound Inventions is a collection of 34 articles taken from Experimental Musical Instruments, the seminal journal published from 1984 through 1999. In addition to the selected articles, the editors have contributed introductory essays, placing the material in cultural and temporal context, providing an overview of the field both before and after the time of original publication. The Experimental Musical Instruments journal contributed extensively to a number of sub-fields, including sound sculpture and sound art, sound design, tuning theory, musical instrument acoustics, timbre and timbral perception, musical instrument construction and materials, pedagogy, and contemporary performance and composition. This book provides a picture of this important early period, presenting a wealth of material that is as valuable and relevant today as it was when first published, making it essential reading for anyone researching, working with or studying sound.
Author : Bram De Kraker
Publisher : World Scientific
Page : 462 pages
File Size : 45,4 MB
Release : 2000-04-28
Category : Technology & Engineering
ISBN : 9814497908
Rapid developments in nonlinear dynamics and chaos theory have led to publication of many valuable monographs and books. However, most of these texts are devoted to the classical nonlinear dynamics systems, for example the Duffing or van der Pol oscillators, and either neglect or refer only briefly to systems with motion-dependent discontinuities. In engineering practice a good part of problems is discontinuous in nature, due to either deliberate reasons such as the introduction of working clearance, and/or the finite accuracy of the manufacturing processes.The main objective of this volume is to provide a general methodology for describing, solving and analysing discontinuous systems. It is compiled from the dedicated contributions written by experts in the field of applied nonlinear dynamics and chaos.The main focus is on mechanical engineering problems where clearances, piecewise stiffness, intermittent contact, variable friction or other forms of discontinuity occur. Practical applications include vibration absorbers, percussive drilling of hard materials and dynamics of metal cutting.
