Impacts in Mechanical Systems
Impacts in Mechanical Systems

Author: Bernard Brogliato

Publisher: Springer Science & Business Media

Published: 2000-08-15

Total Pages: 281

ISBN-13: 354067523X

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This volume constitutes an advanced introduction to the field of analysis, modeling and numerical simulation of rigid body mechanical systems with unilateral constraints. The topics include Moreau's sweeping process, the numerical analysis of nonsmooth multibody systems with friction, the study of energetical restitution coefficients for elasto-plastic models, the study of stability and bifurcation in systems with impacts, and the development of a multiple impact rule for Newton's cradle and the simple rocking model. Combining pedagogical aspects with innovative approaches, this book will not only be of interest to researchers working actively in the field, but also to graduate students wishing to get acquainted with this field of research through lectures written at a level also accessible to nonspecialists.

Impacts in Mechanical Systems
Impacts in Mechanical Systems

Author: Bernard Brogliato

Publisher: Springer

Published: 2008-01-11

Total Pages: 281

ISBN-13: 3540455019

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This volume constitutes an advanced introduction to the field of analysis, modeling and numerical simulation of rigid body mechanical systems with unilateral constraints. The topics include Moreau's sweeping process, the numerical analysis of nonsmooth multibody systems with friction, the study of energetical restitution coefficients for elasto-plastic models, the study of stability and bifurcation in systems with impacts, and the development of a multiple impact rule for Newton's cradle and the simple rocking model. Combining pedagogical aspects with innovative approaches, this book will not only be of interest to researchers working actively in the field, but also to graduate students wishing to get acquainted with this field of research through lectures written at a level also accessible to nonspecialists.

Dynamics of Controlled Mechanical Systems with Delayed Feedback
Dynamics of Controlled Mechanical Systems with Delayed Feedback

Author: H.Y. Hu

Publisher: Springer Science & Business Media

Published: 2002-07-24

Total Pages: 318

ISBN-13: 9783540437338

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Recent years have witnessed a rapid development of active control of various mechanical systems. With increasingly strict requirements for control speed and system performance, the unavoidable time delays in both controllers and actuators have become a serious problem. For instance, all digital controllers, analogue anti aliasing and reconstruction filters exhibit a certain time delay during operation, and the hydraulic actuators and human being interaction usually show even more significant time delays. These time delays, albeit very short in most cases, often deteriorate the control performance or even cause the instability of the system, be cause the actuators may feed energy at the moment when the system does not need it. Thus, the effect of time delays on the system performance has drawn much at tention in the design of robots, active vehicle suspensions, active tendons for tall buildings, as well as the controlled vibro-impact systems. On the other hand, the properly designed delay control may improve the performance of dynamic sys tems. For instance, the delayed state feedback has found its applications to the design of dynamic absorbers, the linearization of nonlinear systems, the control of chaotic oscillators, etc. Most controlled mechanical systems with time delays can be modeled as the dynamic systems described by a set of ordinary differential equations with time delays.

Applied Nonlinear Dynamics And Chaos Of Mechanical Systems With Discontinuities
Applied Nonlinear Dynamics And Chaos Of Mechanical Systems With Discontinuities

Author: Bram De Kraker

Publisher: World Scientific

Published: 2000-04-28

Total Pages: 462

ISBN-13: 9814497908

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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.

Impact Mechanics
Impact Mechanics

Author: W. J. Stronge

Publisher: Cambridge University Press

Published: 2018-11-15

Total Pages: 383

ISBN-13: 0521841887

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This second edition of Impact Mechanics offers new analytical methods with examples for the dynamics of low-speed impact.

Computer-Aided Analysis of Rigid and Flexible Mechanical Systems
Computer-Aided Analysis of Rigid and Flexible Mechanical Systems

Author: Manuel F.O. Seabra Pereira

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 622

ISBN-13: 9401111669

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This book contains the edited version of the lectures presented at the NATO ADVANCED STUDY INSTITUTE on "COMPUTER AIDED ANALYSIS OF RIGID AND FLEXIBLE MECHANICAL SYSTEMS". held in Troia. Portugal. from the 27 June to 9 July. 1993. and organized by the Instituto de Engenharia Mecanica. Instituto Superior Tecnico. This ASI addressed the state-of-art in the field of multibody dynamics. which is now a well developed subject with a great variety of formalisms. methods and principles. Ninety five participants. from twenty countries. representing academia. industry. government and research institutions attended this Institute. This contributed greatly to the success of the Institute since it encouraged the interchange of experiences between leading scientists and young scholars and promoted discussions that helped to generate new ideas and to defme directions of research and future developments. The full program of the Institute included also contributed presentations made by participants where different topics have been explored. Such topics include: formulations and numerical aspects in rigid and flexible mechanical systems; object-oriented paradigms; optimal design and synthesis; robotics; kinematics; path planning; control; impact dynamics; and several application oriented developments in weapon systems. vehicles and crash worthiness. These papers have been revised and will be published by Kluwer in a special issue of the Journal of Nonlinear Dynamics and in a forthcoming companion book. This book brings together. in a tutorial and review manner. a comprehensive summary of current work and is therefore suitable for a wide range of interests.

Bifurcation and Chaos in Nonsmooth Mechanical Systems
Bifurcation and Chaos in Nonsmooth Mechanical Systems

Author: Jan Awrejcewicz

Publisher: World Scientific

Published: 2003

Total Pages: 564

ISBN-13: 9812384596

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This book presents the theoretical frame for studying lumped nonsmooth dynamical systems: the mathematical methods are recalled, and adapted numerical methods are introduced (differential inclusions, maximal monotone operators, Filippov theory, Aizerman theory, etc.). Tools available for the analysis of classical smooth nonlinear dynamics (stability analysis, the Melnikov method, bifurcation scenarios, numerical integrators, solvers, etc.) are extended to the nonsmooth frame. Many models and applications arising from mechanical engineering, electrical circuits, material behavior and civil engineering are investigated to illustrate theoretical and computational developments.

Optimal Protection from Impact, Shock and Vibration
Optimal Protection from Impact, Shock and Vibration

Author: Dimitry V Balandin

Publisher: CRC Press

Published: 2001-03-07

Total Pages: 474

ISBN-13: 9789056997014

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Systems that provide protection from impact, shock and vibration are held up by sophisticated physical principles. In this volume, the author explores those principles in a straightforward manner. All aspects of the theory of optimal isolation are presented, from a description of the systems that use these principles to the design of such systems and the limits of the approach. The text offers several examples of how optimal isolation has been applied in real-world situations, thus serving to emphasize and elucidate the explanation of the theory. Optimal Protection From Impact, Shock and Vibration is ideal for applied engineers and mathematicians, whether students or professionals, who need to understand optimal protection.

Stability and Convergence of Mechanical Systems with Unilateral Constraints
Stability and Convergence of Mechanical Systems with Unilateral Constraints

Author: Remco I. Leine

Publisher: Springer Science & Business Media

Published: 2007-12-29

Total Pages: 241

ISBN-13: 3540769757

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While the stability theory for systems with bilateral constraints is a well-established field, this monograph represents a systematic study of mechanical systems with unilateral constraints, such as unilateral contact, impact and friction. Such unilateral constraints give rise to non-smooth dynamical models for which stability theory is developed in this work. The book will be of interest to those working in the field of non-smooth mechanics and dynamics.

Theory of Vibro-Impact Systems and Applications
Theory of Vibro-Impact Systems and Applications

Author: Vladimir I. Babitsky

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 330

ISBN-13: 3540696350

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- Models of vibro-impact systems are widely used in machine dynamics, vibration engineering, and structural mechanics. - Only monograph on this subject in English language. - Systematically presents the theory of vibro-impact systems by analysis of typical engineering applications. - Experimental data and computer simulations are presented. - Targeted to engineers and researchers in design and investigation of mechanical systems as well as to lecturers and advanced students.