Mechanical Instability

Mechanical Instability PDF Author: Tomasz Krysinski
Publisher: John Wiley & Sons
ISBN: 1118600959
Category : Technology & Engineering
Languages : en
Pages : 282

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Book Description
This book presents a study of the stability of mechanical systems, i.e. their free response when they are removed from their position of equilibrium after a temporary disturbance. After reviewing the main analytical methods of the dynamical stability of systems, it highlights the fundamental difference in nature between the phenomena of forced resonance vibration of mechanical systems subjected to an imposed excitation and instabilities that characterize their free response. It specifically develops instabilities arising from the rotor–structure coupling, instability of control systems, the self-sustained instabilities associated with the presence of internal damping and instabilities related to the fluid–structure coupling for fixed and rotating structures. For an original approach following the analysis of instability phenomena, the book provides examples of solutions obtained by passive or active methods.

Mechanical Instability

Mechanical Instability PDF Author: Tomasz Krysinski
Publisher: John Wiley & Sons
ISBN: 1118600959
Category : Technology & Engineering
Languages : en
Pages : 282

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Book Description
This book presents a study of the stability of mechanical systems, i.e. their free response when they are removed from their position of equilibrium after a temporary disturbance. After reviewing the main analytical methods of the dynamical stability of systems, it highlights the fundamental difference in nature between the phenomena of forced resonance vibration of mechanical systems subjected to an imposed excitation and instabilities that characterize their free response. It specifically develops instabilities arising from the rotor–structure coupling, instability of control systems, the self-sustained instabilities associated with the presence of internal damping and instabilities related to the fluid–structure coupling for fixed and rotating structures. For an original approach following the analysis of instability phenomena, the book provides examples of solutions obtained by passive or active methods.

Lateral Ankle Instability

Lateral Ankle Instability PDF Author: Hélder Pereira
Publisher: Springer Nature
ISBN: 3662627639
Category : Medical
Languages : en
Pages : 392

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Book Description
This superbly illustrated, up-to-date reference textbook covers all aspects of ankle instability and its management. Readers will find extensive information on biomechanics, injury prevention, current strategies for conservative treatment, and established and emerging surgical techniques. The most recent procedures, particularly those which are minimally invasive and arthroscopically assisted, are described and discussed in depth. Detailed attention is also devoted to controversies such as the indications and timing for conservative or surgical treatment, the current and future roles of arthroscopy, the definition of “anatomic” repair, and the upcoming concept of “anatomic reconstruction” (replication of anatomy by using a graft). The book is published in cooperation with ESSKA, and the chapter authors include clinicians and scientists working in the field of foot and ankle orthopaedics and sports medicine from across the world. All who are involved in the care of patients suffering from ankle instability, including amateur and high-level athletes, will find Lateral Ankle Instability to be an excellent source of knowledge and a valuable aid to clinical practice.

Nonlinear Solid Mechanics

Nonlinear Solid Mechanics PDF Author: Davide Bigoni
Publisher: Cambridge University Press
ISBN: 1107025419
Category : Mathematics
Languages : en
Pages : 549

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Book Description
Addresses behaviour of materials under extreme mechanical conditions and of failure in terms of non-linear continuum mechanics and instability theory.

Routes to Absolute Instability in Porous Media

Routes to Absolute Instability in Porous Media PDF Author: Antonio Barletta
Publisher: Springer
ISBN: 3030061949
Category : Technology & Engineering
Languages : en
Pages : 289

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Book Description
This book addresses the concepts of unstable flow solutions, convective instability and absolute instability, with reference to simple (or toy) mathematical models, which are mathematically simple despite their purely abstract character. Within this paradigm, the book introduces the basic mathematical tools, Fourier transform, normal modes, wavepackets and their dynamics, before reviewing the fundamental ideas behind the mathematical modelling of fluid flow and heat transfer in porous media. The author goes on to discuss the fundamentals of the Rayleigh-Bénard instability and other thermal instabilities of convective flows in porous media, and then analyses various examples of transition from convective to absolute instability in detail, with an emphasis on the formulation, deduction of the dispersion relation and study of the numerical data regarding the threshold of absolute instability. The clear descriptions of the analytical and numerical methods needed to obtain these parametric threshold data enable readers to apply them in different or more general cases. This book is of interest to postgraduates and researchers in mechanical and thermal engineering, civil engineering, geophysics, applied mathematics, fluid mechanics, and energy technology.

Spinal Instability

Spinal Instability PDF Author: Robert N.N. Holtzman
Publisher: Springer Science & Business Media
ISBN: 1461393264
Category : Medical
Languages : en
Pages : 537

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Book Description
In this volume, world authorities on spinal surgery from the fields of Neurosurgery, Orthopaedic Surgery, and Neuroscience present current data on the basic science and clinical management of the unstable spine. Unique to this book: a frank presentation of controversies in the field.

Physical and Chemical Dissolution Front Instability in Porous Media

Physical and Chemical Dissolution Front Instability in Porous Media PDF Author: Chongbin Zhao
Publisher: Springer
ISBN: 3319084615
Category : Science
Languages : en
Pages : 363

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Book Description
This monograph provides state-of-the-art theoretical and computational findings from investigations on physical and chemical dissolution front instability problems in porous media, based on the author’s own work. Although numerical results are provided to complement theoretical ones, the focus of this monograph is on the theoretical aspects of the topic and those presented in this book are applicable to a wide range of scientific and engineering problems involving the instability of nonlinear dynamic systems. To appeal to a wider readership, common mathematical notations are used to derive the theoretical solutions. The book can be used either as a useful textbook for postgraduate students or as a valuable reference book for computational scientists, mathematicians, engineers and geoscientists.

Biomechanics and Biomaterials in Orthopedics

Biomechanics and Biomaterials in Orthopedics PDF Author: Dominique G. Poitout
Publisher: Springer
ISBN: 1848826648
Category : Medical
Languages : en
Pages : 534

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Book Description
With the constant evolution of implant technology, and improvement in the production of allograft and bone substitutes, the armamentarium of the orthopaedic surgeon has significantly expanded. In particular, the recent involvement of nanotechnologies opens up the possibilities of new approaches in the interactive interfaces of implants. With many important developments occurring since the first edition of this well-received book, this updated resource informs orthopaedic practitioners on a wide range of biomechanical advances in one complete reference guide. Biomechanics and Biomaterials in Orthopedics, 2nd edition compiles the most prominent work in the discipline to offer newly-qualified orthopedic surgeons a summary of the fundamental skills that they will need to apply in their day-to-day work, while also updating the knowledge of experienced surgeons. This book covers both basic concepts concerning biomaterials and biomechanics as well as their clinical application and the experience from everyday practical use. This book will be of great value to specialists in orthopedics and traumatology, while also providing an important basis for graduate and postgraduate learning.

Material Instabilities in Elastic and Plastic Solids

Material Instabilities in Elastic and Plastic Solids PDF Author: Henryk Petryk
Publisher: Springer
ISBN: 3709125626
Category : Technology & Engineering
Languages : en
Pages : 390

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Book Description
This book collects recent theoretical developments in the area of material instability in elastic and plastic solids along with related analytical and numerical methods and applications. The existing different approaches to instability phenomena in metal single crystals, polycristals and in geomaterials are presented with the emphasis laid on mutual relations and on unifying concepts, including elliptictly loss and the energy criterion. Quasi-static bifurcation, initiation of single or multiple shear bands and post-critical strain localization are examined along with dynamic phenomena as wave propagation, moving shocks, internal snap-through and instability of flutter type. This gives an overview of a variety of material instability problems, methods and applications.

Failure of Materials in Mechanical Design

Failure of Materials in Mechanical Design PDF Author: Jack A. Collins
Publisher: John Wiley & Sons
ISBN: 9780471558910
Category : Technology & Engineering
Languages : en
Pages : 690

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Book Description
Failure of Materials in Mechanical Design: Analysis, Prediction, Prevention, 2nd Edition, covers the basic principles of failure of metallic and non-metallic materials in mechanical design applications. Updated to include new developments on fracture mechanics, including both linear-elastic and elastic-plastic mechanics. Contains new material on strain and crack development and behavior. Emphasizes the potential for mechanical failure brought about by the stresses, strains and energy transfers in machine parts that result from the forces, deflections and energy inputs applied.

Pelvic Ring Fractures

Pelvic Ring Fractures PDF Author: Axel Gänsslen
Publisher: Springer Nature
ISBN: 3030547302
Category : Medical
Languages : en
Pages : 622

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Book Description
This book provides in-depth coverage of all aspects of pelvic ring fractures and their management. The opening chapters supply essential information on surgical anatomy, biomechanics, classification, clinical evaluation, radiological diagnostics, and emergency and acute management. The various operative techniques, including navigation techniques, that have been established and standardized over the past two decades are then presented in a step-by-step approach. Readers will find guidance on surgical indications, choice of approaches, reduction and fixation strategies, complication management, and optimization of long-term results. Specific treatment concepts are described for age-specific fractures, including pediatric and geriatric injuries, and secondary reconstructions. Pelvic ring fractures represent challenging injuries, especially when they present with concomitant hemodynamic instability. This book will help trauma and orthopaedic surgeons at all levels of experience to achieve the primary treatment aim of anatomic restoration of the bony pelvis to preserve biomechanical stability and avoid malunion with resulting clinical impairments.