Structural dynamics is a subset of structural analysis which covers the behavior of structures subjected to dynamic loading. The subject has seen rapid growth and also change in how the basic concepts can be interpreted. For instance, the classical notions of discretizing the operator of a dynamic structural model have given way to a set-theoretic, function-space based framework, which is more conducive to implementation with a computer. This modern perspective, as adopted in this book, is also helpful in putting together the various tools and ideas in a more integrated style. Elements of Structural Dynamics: A New Perspective is devoted to covering the basic concepts in linear structural dynamics, whilst emphasizing their mathematical moorings and the associated computational aspects that make their implementation in software possible. Key features: Employs a novel ‘top down’ approach to structural dynamics. Contains an insightful treatment of the computational aspects, including the finite element method, that translate into numerical solutions of the dynamic equations of motion. Consistently touches upon the modern mathematical basis for the theories and approximations involved. Elements of Structural Dynamics: A New Perspective is a holistic treatise on structural dynamics and is an ideal textbook for senior undergraduate and graduate students in Mechanical, Aerospace and Civil engineering departments. This book also forms a useful reference for researchers and engineers in industry.
One of the first books to provide in-depth and systematic application of finite element methods to the field of stochastic structural dynamics The parallel developments of the Finite Element Methods in the 1950’s and the engineering applications of stochastic processes in the 1940’s provided a combined numerical analysis tool for the studies of dynamics of structures and structural systems under random loadings. In the open literature, there are books on statistical dynamics of structures and books on structural dynamics with chapters dealing with random response analysis. However, a systematic treatment of stochastic structural dynamics applying the finite element methods seems to be lacking. Aimed at advanced and specialist levels, the author presents and illustrates analytical and direct integration methods for analyzing the statistics of the response of structures to stochastic loads. The analysis methods are based on structural models represented via the Finite Element Method. In addition to linear problems the text also addresses nonlinear problems and non-stationary random excitation with systems having large spatially stochastic property variations. A systematic treatment of stochastic structural dynamics applying the finite element methods Highly illustrated throughout and aimed at advanced and specialist levels, it focuses on computational aspects instead of theory Emphasizes results mainly in the time domain with limited contents in the time-frequency domain Presents and illustrates direction integration methods for analyzing the statistics of the response of linear and nonlinear structures to stochastic loads Under Author Information – one change of word to existing text: He is a Fellow of the American Society of Mechanical Engineers (ASME)........
The Contemporary Global Economy provides a lively overview of recent turbulence in the world economy, focusing on the dynamics of globalization since the 1980s. It explains the main drivers of economic change and how we are able to discern their effects in the world today. A lucid and balanced survey, based on extensive research in data and documents, accessible to the non-specialist Written by a renowned specialist in international economic relations with academic and government credentials Offers clear and engaging explanations of the main motors of economic change and how we are able to discern their effects in the world today The author assumes little knowledge of economic theory or financial markets Identifies the challenges for sustainable recovery and economic growth in the years ahead
A long-standing unsolved problem in economic theory is how economic equilibria are attained. Price Dynamics in Equilibrium Models: The Search for Equilibrium and the Emergence of Endogenous Fluctuations considers a number of adjustment processes in different economic models and investigates their dynamical behaviour. Two important themes arising in this context are "bounded rationality" and "nonlinear dynamics". Important sub-themes of the book are the following: how do boundedly rational agents interact with their environment and does this interaction in some sense lead to rational outcomes (which may or may not correspond to equilibria)? The second sub-theme deals with the consequences of the nonlinear dynamical nature of many adjustment processes. The results presented in this volume indicate that endogenous fluctuations are the rule rather than the exception in the search for equilibrium. The book uses the theory of nonlinear dynamics to analyze the dynamics of the different economic models. Due to the complexity of most of the models, an important role is played by computational methods. In particular, at regular instances the models are analyzed by numerical simulations and some computer-assisted proofs are provided. It also covers a wide range of dynamical models from economic theory. Most of these models merge the theory of nonlinear economic dynamics with the theory of bounded rationality. The book is written for anyone with an interest in economic theory in general and bounded rationality and endogenous fluctuations in particular. It is entirely self-contained and accessible to readers with only a limited knowledge of economic theory.
Dynamics of Smart Structures is a practical, concise and integrated text that provides an introduction to the fundamental principles of a field that has evolved over the recent years into an independent and identifiable subject area. Bringing together the concepts, techniques and systems associated with the dynamics and control of smart structures, it comprehensively reviews the differing smart materials that are employed in the development of the smart structures and covers several recent developments in the field of structural dynamics. Dynamics of Smart Structures has been developed to complement the author's new interdisciplinary programme of study at Queen Mary, University of London that includes courses on emerging and new technologies such as biomimetic robotics, smart composite structures, micro-electro-mechanical systems (MEMS) and their applications and prosthetic control systems. It includes chapters on smart materials and structures, transducers for smart structures, fundamentals of structural control, dynamics of continuous structures, dynamics of plates and plate-like structures, dynamics of piezoelectric media, mechanics of electro-actuated composite structures, dynamics of thermo-elastic media: shape memory alloys, and controller designs for flexible structures.
One of the toughest lessons every business leader learns is how hard it is to generate sustained growth. Stalled growth is the rule, not the exception–even for the best-managed companies. That's especially true in unpredictable economic environments such as the one we're experiencing today. McKee has a unique understanding of what happens when growth stalls. His firm commissioned a study of 700 companies that had at one time been among the nation's fastest-growing businesses. Developed in concert with Decision Analyst, a leading national research and consulting firm, the study probed areas as diverse as corporate structure, competition, branding, finance, and strategy. The target respondent profile were CEOs, owners, principals, presidents, managing directors or chairmen of the board. In-depth follow-up interviews yielded fascinating stories and personal comments from executives who had been living on the front lines of real-life growth crises. McKee presents compelling knowledge about how and why companies lose their way, and offers practical advice about how they can rekindle growth. When Growth Stalls demonstrates that sluggish growth is generally produced not by mismanagement or strategic blundering but by natural market forces and management dynamics that are often unrecognized–and widespread. The book presents seven characteristics that commonly correlate with stalled growth and what to do about them. Some are external forces to which countless companies have fallen victim: economic upheavals, changing industry dynamics, and increased competition. What McKee points out, however, is how often they catch companies off-guard. More surprising are four subtle and highly destructive internal factors that conspire to keep companies down: lack of consensus among the management team, loss of nerve, loss of focus, and marketing inconsistency. McKee makes the case that, regardless of what's going on outside of an enterprise, it's what's inside that counts.
Environmental pollution has increasingly become an issue of global concern because of climate change and consciousness for environmental sustainability. To this end, this paper investigates the relationship between energy consumption, carbon dioxide (CO2) emissions and economic growth of the G8 countries over the period of 56 years spanning 1960 through 2015 using both the Fully Modified and Dynamic OLS estimation techniques. The empirical investigation establishes the critical roles played by energy consumption and CO2 emissions on economic growth but in substantially opposite directions. While that of the former positively enhances economic growth, on the one hand, the latter negatively deters it. In addition, a long-run relationship is equally established but with the varied direction of causality. Finally, the study offers significant policy implications directed at using energy resource efficiently as well as curtailing environmental contaminants.
Computational methods for the modeling and simulation of the dynamic response and behavior of particles, materials and structural systems have had a profound influence on science, engineering and technology. Complex science and engineering applications dealing with complicated structural geometries and materials that would be very difficult to treat using analytical methods have been successfully simulated using computational tools. With the incorporation of quantum, molecular and biological mechanics into new models, these methods are poised to play an even bigger role in the future. Advances in Computational Dynamics of Particles, Materials and Structures not only presents emerging trends and cutting edge state-of-the-art tools in a contemporary setting, but also provides a unique blend of classical and new and innovative theoretical and computational aspects covering both particle dynamics, and flexible continuum structural dynamics applications. It provides a unified viewpoint and encompasses the classical Newtonian, Lagrangian, and Hamiltonian mechanics frameworks as well as new and alternative contemporary approaches and their equivalences in [start italics]vector and scalar formalisms[end italics] to address the various problems in engineering sciences and physics. Highlights and key features Provides practical applications, from a unified perspective, to both particle and continuum mechanics of flexible structures and materials Presents new and traditional developments, as well as alternate perspectives, for space and time discretization Describes a unified viewpoint under the umbrella of Algorithms by Design for the class of linear multi-step methods Includes fundamentals underlying the theoretical aspects and numerical developments, illustrative applications and practice exercises The completeness and breadth and depth of coverage makes Advances in Computational Dynamics of Particles, Materials and Structures a valuable textbook and reference for graduate students, researchers and engineers/scientists working in the field of computational mechanics; and in the general areas of computational sciences and engineering.
Structural Design for Fire Safety, 2nd edition Andrew H. Buchanan, University of Canterbury, New Zealand Anthony K. Abu, University of Canterbury, New Zealand A practical and informative guide to structural fire engineering This book presents a comprehensive overview of structural fire engineering. An update on the first edition, the book describes new developments in the past ten years, including advanced calculation methods and computer programs. Further additions include: calculation methods for membrane action in floor slabs exposed to fires; a chapter on composite steel-concrete construction; and case studies of structural collapses. The book begins with an introduction to fire safety in buildings, from fire growth and development to the devastating effects of severe fires on large building structures. Methods of calculating fire severity and fire resistance are then described in detail, together with both simple and advanced methods for assessing and designing for structural fire safety in buildings constructed from structural steel, reinforced concrete, or structural timber. Structural Design for Fire Safety, 2nd edition bridges the information gap between fire safety engineers, structural engineers and building officials, and it will be useful for many others including architects, code writers, building designers, and firefighters. Key features: • Updated references to current research, as well as new end-of-chapter questions and worked examples. •Authors experienced in teaching, researching, and applying structural fire engineering in real buildings. • A focus on basic principles rather than specific building code requirements, for an international audience. An essential guide for structural engineers who wish to improve their understanding of buildings exposed to severe fires and an ideal textbook for introductory or advanced courses in structural fire engineering.
The objective of this study is to estimate inflation threshold and examine its impact on the inflation-growth nexus in selected African regional economic communities. While a number of empirical studies exist in this area for developing countries, they bundle up countries from Asia, Africa and Latin America which do not have the same inflation experiences. This study therefore focuses on Africa. However, since African regional groupings themselves have different inflation experiences, non-linearity in the relationship between inflation and growth is explored within each grouping separately. The study uses dynamic panel threshold modeling recently suggested by Kremer et al. (2013) which extends the non-dynamic panel threshold model of Hansen (1999) and the cross-sectional threshold model of Caner and Hansen (2004). The results indicate that the estimated inflation threshold is different across the regional economic communities. Nonlinearity in inflation-growth nexus seems to hold in CEMAC, COMESA and SADC while it is questioned in WAEMU and WAMZ. For CEMAC, COMESA and SADC, the findings indicate that inflation above the threshold is harmful to growth. Some correlations are established in this study but further analysis is needed to suggest a policy.
A provocative critique of the Obama administration's economic policies and an examination of America's difficult economic future During the 2008 presidential campaign, Barack Obama promised «a net spending cut» to make government smaller in order to reduce the deficit. But this huge increase in government spending and debt, and the resulting prospect of higher taxes, will make America a poorer country. Are Americans happier because the government has determined where this money should be spent? According to John Lott and Americans for Tax Reform President Grover Norquist, the answer is no, and in Debacle: Obama's War on Jobs and Growth and What We Can Do Now to Regain Our Future they explain why. Obama's economic policies have raised unemployment, slowed economic growth, dramatically raised the national debt, squandered taxpayer money through poor investments, and damaged the housing market. The book explains why Obama's policies on spending, taxes, and regulation have all worked to harm the recovery, increase unemployment, and depress housing prices. The Congressional Budget Office estimates that the deficits that President Obama proposes for the years from 2011 through 2020 come to a staggering $126,000 per family of four, and John Lott and Grover Norquist make clear why the costs outweigh the benefits Explains why Keynesian economics is more a way of transferring wealth to political constituencies than a legitimate economic theory for understanding how the economy operates Posits that Obama's economic policies were more an opportunity «to do big things» than to solve the country's economic problems Arguing that the policies of the Obama administration have created widespread economic chaos, Debacle is a bleak look at American finance from Grover Norquist.
Business growth expert Steven S. Little gives you the real-world strategies you need to navigate your business through economic uncertainty If you're a business owner or leader, you're no doubt feeling inundated on all sides by the gathering forces of this financial downturn—shrinking revenues, tightening resources, anxious workers, plunging profits. When economic storms hit, it's the clear-minded and action-oriented leader that ultimately guides their business to success. In order to position your business for the growth opportunities ahead, it is imperative for you to address your most critical issues now. Duck and (re)Cover is the ultimate business owner's guide to prevailing and prospering through tough economic times. It questions much of the «conventional wisdom» we all hear about recessions and instead offers an irreverently common-sense approach to survival and growth in the midst of economic uncertainty. This book focuses on the most significant challenges and opportunities facing embattled businesses today. Recommends specific, and effective strategies for keeping your business up and running, even if the economy continues to stall Includes a wealth of been-there-done-that advice that will help you clear your own path to sustainable, profitable growth Written by Steven S. Little, former president of three fast-growth companies and author of The Seven Irrefutable Rules of Small Business Growth Now is not the time for timidity. Instead, make the bold moves recommend here to not only weather the storm but to chart a course for your ultimate destination.
With contributions from 24 global experts in diverse fields, and edited by world-recognized leaders in physical chemistry, chemical physics and biophysics, Structural Glasses and Supercooled Liquids: Theory, Experiment, and Applications presents a modern, complete survey of glassy phenomena in many systems based on firmly established characteristics of the underlying molecular motions as deduced by first principle theoretical calculations, or with direct/single-molecule experimental techniques. A well-rounded view of a variety of disordered systems where cooperative phenomena, which are epitomized by supercooled liquids, take place is provided. These systems include structural glasses and supercooled liquids, polymers, complex liquids, protein conformational dynamics, and strongly interacting electron systems with quenched/self-generated disorder. Detailed calculations and reasoned arguments closely corresponding with experimental data are included, making the book accessible to an educated non-expert reader.
An in-depth look at Japan's economic malaise and the steps it must take to compete globally In Japanization, Bloomberg columnist William Pesek—based in Tokyo—presents a detailed look at Japan's continuing twenty-year economic slow-down, the political and economic reasons behind it, and the policies it could and should undertake to return to growth and influence. Despite new Prime Minister Shinzo Abe's promise of economic revitalization, investor optimism about the future, and plenty of potential, Japanization reveals why things are unlikely to change any time soon. Pesek argues that «Abenomics,» as the new policies are popularly referred to, is nothing more than a dressed-up version of the same old fiscal and monetary policies that have left Japan with crippling debt, interest rates at zero, and constant deflation. He explores the ten forces that are stunting Japan's growth and offers prescriptions for fixing each one. Offers a skeptical counterpoint to the popular rosy narrative on the economic outlook for Japan Gives investors practical and detailed insight on the real condition of Japan's economy Reveals ten factors stunting Japan's growth and why they are unlikely to be solved any time soon Explains why most of what readers believe they know about Japan's economy is wrong Includes case studies of some of the biggest Japanese companies, including Olympus, Japan Airlines, Sony, and Toyota, among others For many investors, businesspeople, and economists, Japan's long economic struggle is difficult to comprehend, particularly given the economic advantages it appears to have over its neighbors. Japanization offers a ground-level look at why its problems continue and what it can do to change course.
A comprehensive analysis of the macroeconomic and financial forces altering the economic landscape Financial decision-making requires one to anticipate how their decision will not only affect their business, but also the economic environment. Unfortunately, all too often, both private and public sector decision-makers view their decisions as one-off responses and fail to see their decisions within the context of an evolving decision-making framework. In Decision-Making in a Dynamic Economic Setting, John Silvia, Chief Economist of Wells Fargo and one of the top 5 economic forecasters according to Bloomberg News and USA Today, skillfully puts this discipline in perspective. Details realistic, decision-making approaches and applications under a broad set of economic scenarios Analyzes monetary policy and addresses the impact of financial regulations Examines business cycles and how to identify economic trends, how to deal with uncertainty and manage risk, the building blocks of growth, and strategies for innovation Decision-Making in a Dynamic Economic Setting details the real-world application of economic principles and financial strategy in making better business decisions.