This book presents an isospectral approach for several important mechanical vibrating systems. Discrete and continuous isospectral systems are discussed using a simple multi-degree of freedom spring-mass system followed by illustration of isospectral beams and their solution through evolutionary computing. Next, it addresses axially loaded Euler-Bernoulli beams and aims to find isospectral counterparts of these systems. The practical application of these isospectral systems for vibration testing and for finding new closed form solutions is discussed. A considerable part of the book is devoted to isospectral rotating beams and their non-rotating analogs including Rayleigh beams. Aimed at researchers and graduate students in mechanical; aerospace; civil; automotive; ocean engineering especially mechanical vibrations, this monograph: Discusses isospectral vibrating systems to aid vibration testing and computational analysis Explores isospectral analogs between rotating and non-rotating structures Provides simpler isospectral beams for vibration testing and for 3D printing Uses firefly optimization method and electromagnetism inspired optimization method to find isospectral systems Shows the use of isospectral systems to find new closed form solutions using an indirect approach
Widely used for power generation, gas turbine engines are susceptible to faults due to the harsh working environment. Most engine problems are preceded by a sharp change in measurement deviations compared to a baseline engine, but the trend data of these deviations over time are contaminated with noise and non-Gaussian outliers. Gas Turbine Diagnos
In this book, the author integrates science, economics, politics and religion to formulate a materialist Hindu philosophy, the purpose of which is to achieve a superpower India, the core Hindu civilization, by creating superpower people, and reforming and homogenizing Hindu society. In simple terms his theory is that the left-leaning secular liberal elite ruling India for the past fifty years has forsaken God, and in return, God has forsaken India. A return to God and unleashing powerful creative, destructive and homogenizing forces originating from Darwinian capitalism is the way for India and Indians to regain their lost glory. The book discusses the three basic forms of power, i.e. wealth, violence and knowledge and how to gain them for self and nation. The author blends concepts from emerging computing technology such as fuzzy logic, genetic algorithms, optimization and neural networks with social and biological sciences and shows how the advise rendered in the battlefield setting of the Bhagavad-Gita is very relevant in our emerging Darwinian and materialistic civilization.
Structural health monitoring (SHM) has emerged as a prominent research area in recent years owing to increasing concerns about structural safety, and the need to monitor and extend the lives of existing structures. Structural Health Monitoring Using Genetic Fuzzy Systems elaborates the process of intelligent SHM development and implementation using the evolutionary system. The use of a genetic algorithm automates the development of the fuzzy system, and makes the method easy to use for problems involving a large number of measurements, damage locations and sizes; such problems being typical of SHM. The ideas behind fuzzy logic, genetic algorithms and genetic fuzzy systems are also explained. The functionality of the genetic fuzzy system architecture is elucidated within a case-study framework, covering: • SHM of beams; • SHM of composite tubes; and • SHM of helicopter rotor blades. Structural Health Monitoring Using Genetic Fuzzy Systems will be useful for aerospace, civil and mechanical engineers working with structures and structured components. It will also be useful for computer scientists and applied mathematicians interested in the application of genetic fuzzy systems to engineering problems.
Exploiting the properties of piezoelectric materials to minimize vibration in rotor-blade actuators, this book demonstrates the potential of smart helicopter rotors to achieve the smoothness of ride associated with jet-engined, fixed-wing aircraft. Vibration control is effected using the concepts of trailing-edge flaps and active-twist. The authors’ optimization-based approach shows the advantage of multiple trailing-edge flaps and algorithms for full-authority control of dual trailing-edge-flap actuators are presented. Hysteresis nonlinearity in piezoelectric stack actuators is highlighted and compensated by use of another algorithm. The idea of response surfaces provides for optimal placement of trailing-edge flaps. The concept of active twist involves the employment of piezoelectrically induced shear actuation in rotating beams. Shear is then demonstrated for a thin-walled aerofoil-section rotor blade under feedback-control vibration minimization. Active twist is shown to be significant in reducing vibration caused by dynamic stall. The exposition of ideas, materials and algorithms in this monograph is supported by extensive reporting of results from numerical simulations of smart helicopter rotors. This monograph will be a valuable source of reference for researchers and engineers with backgrounds in aerospace, mechanical and electrical engineering interested in smart materials and vibration control. Advances in Industrial Control aims to report and encourage the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.
The book addresses computational methods for solving the problem of vibration, response, loads and stability of a helicopter rotor blade modeled as a rotating beam with flap or out-of-plane bending. The focus is on explaining the implementation of the finite element method in the space and time domain for the free vibration, aeroelastic response and stability problems. The use of Floquet analysis for the aeroelastic stability analysis of rotor blades is also shown. The contents of the book will be useful to researchers in aerodynamics and applied mechanics, and will also serve well professionals working in the aerospace industry.
In an age where academic curriculum has essentially pushed theatre studies into ‘post-script’, and the cultural ‘space’ of making and watching theatre has been largely usurped by the immense popularity of television and ‘mainstream’ cinemas, it is important to understand why theatre still remains a ‘space’ to be reckoned as one’s ‘own’. This book argues for a ‘theatre’ of ‘their own’ of the Indian women playwrights (and directors), and explores the possibilities that modern Indian theatre can provide as an instrument of subjective as well as social/ political/ cultural articulations and at the same time analyses the course of Indian theatre which gradually underwent broadening of thematic and dramaturgic scope in order to accommodate the independent voices of the women playwrights and directors.
Generally; it is observed that after politics; subject matter and photographs related to films occupy maximum space in newspapers; magazines* and journals. It is seen; in practice; that almost everyone has an interest in films; he or she may be a seven-year-old school-going child or a seventy-year-old retired man or a working woman. In spite of their interest; they have very limited knowledge about various issues related to films. A book providing authentic and interesting information on this subject with detailed research is hardly available in the market. To bridge this gap; the present film quiz book has been published. Apart from providing relevant information about various historical events regarding films; 1000 facts about celebrities related to this field such as producers; directors; lyricists; singers; music directors; actors; actresses; and many others have been highlighted in the book in a comprehensive; orderly and attractive way. Selected Stories of Honoré de Balzac by Honoré de Balzac: In this collection, Honoré de Balzac presents a selection of his acclaimed short stories, showcasing his incredible talent for vivid storytelling and character development. With its rich language and engaging narratives, this book is a must-read for fans of classical literature. Key Aspects of the Book "Selected Stories of Honoré de Balzac": Collection of Short Stories: The book features a collection of acclaimed short stories by Honoré de Balzac. Vivid Storytelling and Character Development: The stories showcase Balzac's incredible talent for vivid storytelling and character development. Useful for Literature Enthusiasts: The book is useful for fans of classical literature and those interested in the works of Balzac. Honoré de Balzac was a French novelist and playwright who is regarded as one of the greatest writers of Western literature. His book, Selected Stories of Honoré de Balzac, is highly regarded for its captivating storytelling and rich language.
This book discusses systems of damage detection and structural health monitoring in mechanical, civil, and aerospace structures. It utilizes principles of fuzzy logic, probability theory, and signal processing to develop systems and approaches that are robust in the presence of both noise in the data and variations in properties of materials which are intrinsic to the process of mass production. This volume will be useful to graduate students, researchers, and engineers working in this area, especially those looking to understand and address model uncertainty in their algorithms.
Second Edition offers a comprehensive presentation of scientific sampling principles and shows how to design a sample survey and analyze the resulting data. Demonstrates the validity of theorems and statements without resorting to detailed proofs.
Widely used for power generation, gas turbine engines are susceptible to faults due to the harsh working environment. Most engine problems are preceded by a sharp change in measurement deviations compared to a baseline engine, but the trend data of these deviations over time are contaminated with noise and non-Gaussian outliers. Gas Turbine Diagnostics: Signal Processing and Fault Isolation presents signal processing algorithms to improve fault diagnosis in gas turbine engines, particularly jet engines. The algorithms focus on removing noise and outliers while keeping the key signal features that may indicate a fault. The book brings together recent methods in data filtering, trend shift detection, and fault isolation, including several novel approaches proposed by the author. Each method is demonstrated through numerical simulations that can be easily performed by the reader. Coverage includes: Filters for gas turbines with slow data availability Hybrid filters for engines equipped with faster data monitoring systems Nonlinear myriad filters for cases where monitoring of transient data can lead to better fault detection Innovative nonlinear filters for data cleaning developed using optimization methods An edge detector based on gradient and Laplacian calculations A process of automating fault isolation using a bank of Kalman filters, fuzzy logic systems, neural networks, and genetic fuzzy systems when an engine model is available An example of vibration-based diagnostics for turbine blades to complement the performance-based methods Using simple examples, the book describes new research tools to more effectively isolate faults in gas turbine engines. These algorithms may also be useful for condition and health monitoring in other systems where sharp changes in measurement data indicate the onset of a fault.
The book “The Socio-Economic Development and Environmental Sustainability: The Indian Perspective” presents a multi-dimensional facet of Socio-Economic Development and Environmental Sustainability in India. The book consists of three parts under which a total number of 25 research articles are there. The unscientific exploitation of natural resource and rapid urbanization results into the unwanted overshoot which ultimately making our earth vulnerable to natural disasters and calamities. The book has also explored the demographic trends and urbanization in Indian Context. It has also emphasized on the various dimensions of socio-economic development and its regional disparity in a planned way. The present volume is associated with such problems and accounted for the suitable measures to unlock a new direction towards balanced Economic growth and Environmental Sustainability.
This book presents a comprehensive overview of the basics of Hindustani music and the associated signal analysis and technological developments. It begins with an in-depth introduction to musical signal analysis and its current applications, and then moves on to a detailed discussion of the features involved in understanding the musical meaning of the signal in the context of Hindustani music. The components consist of tones, shruti, scales, pitch duration and stability, raga, gharana and musical instruments. The book covers the various technological developments in this field, supplemented with a number of case studies and their analysis. The book offers new music researchers essential insights into the use the automatic concept for finding and testing the musical features for their applications. Intended primarily for postgraduate and PhD students working in the area of scientific research on Hindustani music, as well as other genres where the concepts are applicable, it is also a valuable resource for professionals and researchers in musical signal processing.
The Book Environmental Sustainability In The 21st Century: Emerging Issues And The Way Forward represents the various emerging issues very much relevant to our environment in this 21st Century. An Environment is everything that is around us, which includes both living and nonliving things such as soil, water, animals and plants, which adapt themselves to their surroundings. The environment plays an important role in the existence of life on the planet earth. The most serious environmental problems of the twenty-first century have the potential to alter the course of life on this planet. Global warming, toxic waste, water and air pollution, acid rain, and shrinking energy supplies are frightening challenges that may threaten our future if we do not face up to them. In this book 23 chapters have been incorporated on various environmental issues and challenges we are facing now a days from various academicians and researchers.
This book provides a comprehensive overview of how fractal analytics can lead to the extraction of interesting features from the complex electroencephalograph (EEG) signals generated by Hindustani classical music. It particularly focuses on how the brain responses to the emotional attributes of Hindustani classical music that have been long been a source of discussion for musicologists and psychologists. Using robust scientific techniques that are capable of looking into the most intricate dynamics of the complex EEG signals, it deciphers the human brain’s response to different ragas of Hindustani classical music, shedding new light on what happens inside the performer’s brain when they are mentally composing the imagery of a particular raga. It also explores the much- debated issue in the musical fraternity of whether there are any universal cues in music that make it identifiable for people throughout the world, and if so, what are the neural correlates associated with the universal cues? This book is of interest to researchers and scholars of music and the brain, nonlinear science, music cognition, music signal processing and music information retrieval. In addition, researchers in the field of nonlinear biomedical signal processing and music signal analysis benefit from this book.
The digital twin of a physical system is an adaptive computer analog which exists in the cloud and adapts to changes in the physical system dynamically. This book introduces the computing, mathematical, and engineering background to understand and develop the concept of the digital twin. It provides background in modeling/simulation, computing technology, sensor/actuators, and so forth, needed to develop the next generation of digital twins. Concepts on cloud computing, big data, IoT, wireless communications, high-performance computing, and blockchain are also discussed. Features: Provides background material needed to understand digital twin technology Presents computational facet of digital twin Includes physics-based and surrogate model representations Addresses the problem of uncertainty in measurements and modeling Discusses practical case studies of implementation of digital twins, addressing additive manufacturing, server farms, predictive maintenance, and smart cities This book is aimed at graduate students and researchers in Electrical, Mechanical, Computer, and Production Engineering.
This book discusses systems of damage detection and structural health monitoring in mechanical, civil, and aerospace structures. It utilizes principles of fuzzy logic, probability theory, and signal processing to develop systems and approaches that are robust in the presence of both noise in the data and variations in properties of materials which are intrinsic to the process of mass production. This volume will be useful to graduate students, researchers, and engineers working in this area, especially those looking to understand and address model uncertainty in their algorithms.
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