Maskinteknik

This book focus on key component required for building predictive maintenance model. The current trend of Maintenance 4.0 leans towards the preventive mechanism enabled by predictive approach and condition-based smart maintenance. The intelligent decision support, earlier detection of spare part failure, fatigue detection is the main slices of intelligent and predictive maintenance system (PMS) leading towards Maintenance 4.0 This book presents prominent use cases of mechanical engineering using PMS along with the benefits. Basic understanding of data preparation is required for development of any AI application; in view of this, the types of the data and data preparation processes, and tools are also presented in this book.

The International Scientific and Technical Conference ¿Integrated Computer Technologies in Mechanical Engineering¿¿Synergetic Engineering (ICTM) was established by National Aerospace University ¿Kharkiv Aviation Institute.¿ The Conference ICTM¿2022 was held in Kharkiv, Ukraine, during November 18¿20, 2022. During this conference, technical exchanges between the research community were carried out in the forms of keynote speeches, panel discussions, as well as special session. In addition, participants were treated to a series of receptions, which forge collaborations among fellow researchers. ICTM¿2022 received 137 papers submissions from different countries. All of these offer us plenty of valuable information and would be of great benefit to experience exchange among scientists in modeling and simulation. The organizers of ICTM¿2022 made great efforts to ensure the success of this conference. We hereby would like to thank allthe members of ICTM¿2022 Advisory Committee for their guidance and advice, the members of program committee and organizing committee, and the referees for their effort in reviewing and soliciting the papers, and all authors for their contribution to the formation of a common intellectual environment for solving relevant scientific problems. Also, we grateful to Springer¿Janusz Kacprzyk and Thomas Ditzinger as the editor responsible for the series ¿Lecture Notes in Networks and Systems¿ for their great support in publishing these selected papers.

Das vorliegende Buch widmet sich der Elastostatik, d.h. der Ermittlung von Spannungen und von Deformationen in elastischen Körpern, und stellt eine umfangreiche Aufgabensammlung mit vollständigen Lösungen bereit. Studierende werden hiermit in die Lage versetzt, sich der Thematik anhand von durchgerechneten Beispielen zu nähern und darauf aufbauend ingenieurstechnische Aufgabenstellungen der Elastostatik eigenständig zu lösen. Das Buch wendet sich an Studierende an Fachhochschulen und Universitäten derjenigen Studiengänge, in denen die Elastostatik eine Rolle spielt.

Dieses Lehrbuch zeigt an einfachen und nachvollziehbaren Beispielen, wie der Simulationsprozess Schritt für Schritt erfolgreich durchgeführt werden kann. Aber auch speziellere tiefergehende Themen aus den Bereichen Mechanik, Hydraulik und Elektrik werden behandelt und bringen einen starken Praxisbezug. Auch die Frage, wie man Simulation in einen modernen Entwicklungsprozess integrieren kann, wird beantwortet. Zahlreiche Beispiele in Form von Modellen für das weit verbreitete Simulationsprogramm MATLAB®/Simulink® ermöglichen ein Selbststudium. Einige Beispielprogramme stehen zum Download bereit, der entsprechende Link ist auf der ersten Seite des jeweiligen Kapitels zu finden. Die vorliegende Auflage wurde überarbeitet und um das Kapitel Simulation mit Hilfe von künstlichen neuronalen Netzen (KNN) erweitert.Der InhaltSimulationsvarianten - Dynamiksimulation - Standardverfahren zur Modellierung - Zustandsraumdarstellung - Numerische Integrationsverfahren - Modellbildung - Experimentelle Modellbildung - Modelle vereinfachen - Beispiele aus den Bereichen Mechanik, Hydraulik und Elektrik - Simulation mit künstlichen neuronalen Netzen (KNN) - Tipps und TricksDie ZielgruppenStudierende des Maschinenbaus und der Mechatronik an Hochschulen und Universitäten sowie Ingenieur*innen, die sich in das Thema Simulation einarbeiten möchten.Der AutorDr.-Ing. Michael Glöckler war lange Jahre in der Industrie im Bereich System- und Softwareentwicklung tätig und ist heute Professor für Moderne Entwicklungsprozesse mit dem Schwerpunkt Simulation an der Hochschule Augsburg.

This book is published on dedication of Prof. Dr. Igor Sevostianov who passed away in 2021. He was a great Russian-American scientist who made significant contributions in the field of mechanics of heterogeneous media. This book contains research papers from his friends and colleagues in this research field.

This book presents the select proceedings of the 3rd National Aerospace Propulsion Conference (NAPC 2020). It discusses the recent trends in the area of aerospace propulsion technologies covering both air-breathing and non-air-breathing propulsion. The topics covered include state-of-the-art design, analysis and developmental testing of gas turbine engine modules and sub-systems like compressor, combustor, turbine and alternator; advances in spray injection and atomization; aspects of combustion pertinent to all types of propulsion systems and nuances of space, missile and alternative propulsion systems. The book will be a valuable reference for beginners, researchers and professionals interested in aerospace propulsion and allied fields.

How long have composites been around? Where does the classical laminate theory come from? Who made the first modern fiber composite? This work in the history of materials science is the first examination of the strategies employed in the nineteenth and twentieth centuries in researching and developing hybrid materials. The author analyzes numerous sources which record a regular back and forth between applied design and exploratory materials engineering in building such ¿modular materials¿. The motivations, ideas, and concepts of engineers, scientists, and other players in industry and research are also examined within the context of their day. This book presents the development and importance of composite materials within historical context.The content includesEarly composite materialsThe development of composite materials in the industrial nineteenth centuryComposites in twentieth-century polymer chemistryThe development of hybrid material systems in the second half of the twentieth centurySummary.The author:Dr. Andreas T. Haka is an engineer and historian of science and technology. He is currently a lecturer in the Section for the History of Science and Technology at the University of Stuttgart. His main focus is on the history and practice of materials research, raw materials, materials science and technological constructive design, scientific networks, and research technologies.

Balancing of rotors is an indispensable process for the quality management, involving many stages from design to commissioning. With every further development of rotors - with new concepts, materials and machining methods - the demands on balancing technology change. In the search for the optimum solution to these complex tasks, no patent remedies will help, but only a sound knowledge of the theoretical background of balancing, its practical implementation and the performance of the various balancing systems.This book is intended to support systematic familiarisation with the subject and ongoing training - in practice as well as in theory.The focus of current balancing standards is on deviations that occur during balancing - intentionally generated, or accidentally created. They must be properly analysed and taken into account in order to determine the permissible indications for residual unbalance. In addition, the acceptance criteria were specified so that the balancing objective - the targeted balancing quality - can be reliably achieved.When balancing rotors with shaft-elastic behaviour, work is often still carried out according to outdated patterns. For this reason, the new modal approach was further elaborated - partly on the basis of DIN ISO 21940 Part 12, Supplement 1. For practical application, the difficult choice of compensation planes and the relevant bending eigenmodes is explained by means of examples.

This book was written by a team of leading gear experts from across the globe, including contributions from USA, Germany, Poland, China, Russia, Ukraine, and Belarus. It provides readers with the latest accomplishments in the gear theory and gear cutting tool design.  Specialists can apply competencies gained from this book to quality control in gear manufacture, as well as to the conditions of their production. The book begins with a detailed discussion of the kinematics and geometry of geometrically-accurate gears and gear systems.  This is followed by an analysis of state-of-the-art gear manufacturing methods with focus on gear finishing operations.  Novel designs of gear transmission systems as well as gear theory and gear cutting tool design are also covered. 

This book provides a systematic and standardized approach based on the authors' over 30 years of research experience with weight function methods, as well as the relevant literature. Fracture mechanics has become an indispensable tool for the design and safe operation of damage-tolerant structures in many important technical areas. The stress intensity factor-the characterizing parameter of the crack tip field-is the foundation of fracture mechanics analysis. The weight function method is a powerful technique for determining stress intensity factors and crack opening displacements for complex load conditions, with remarkable computational efficiency and high accuracy.The book presents the theoretical background of the weight function methods, together with a wealth of analytical weight functions and stress intensity factors for two- and three-dimensional crack geometries; many of these have been incorporated into national, international standards and industrial codes of practice. The accuracy of the results is rigorously verified, and various sample applications are provided. Accordingly, the book offers an ideal reference source for graduate students, researchers, and engineers whose work involves fracture and fatigue of materials and structures, who need not only stress intensity factors themselves but also efficient and reliable tools for obtaining them.

High Temperature Miniature Specimen Test Methods focuses on a comprehensive and thorough introduction to a range of high temperature, miniaturized test methods at elevated temperatures which are used to obtain "bulk? creep or fatigue properties from a small volume of material. The book will be of use to a wide range of audience of engineers (e.g., designers, manufacturers, metallurgists, stress analysts), researchers (e.g., materials scientists) and students (undergraduate and postgraduate) in the field of high-temperature material and structural integrity assessment. Specific novel features include 1] theoretical basis of each method; 2], data interpretation method of each test, and 3] specific applications.

Recent Progress in Medical Miniature Robots: From Bench to Bedside serves as a specialized and dedicated reference on miniature robots and their related biomedical applications. This book presents the latest achievements in the research of miniature robotics and introduces a variety of miniature robots on the milli-/micro-/nano-scale, with tethered/untethered and individual/swarm designs, describing the various types and analyzing the underlying principles per class. Recent Progress in Medical Miniature Robots: From Bench to Bedside is suitable for clinicians, academicians, healthcare professionals, researchers, students, engineers, and scientists working in the field of medical miniature robots and related biomedical applications.

Johannes Gutenberg, Ottmar Mergenthaler und Kon­rad Zuse haben etwas gemeinsam: Sie haben mit ihren Erfindungen die Welt verändert. Doch welche Rolle spielte der relativ unbekannte Ottmar Mergenthaler in diesem berühmten Trio?Er war es, der die Linotype Setz­maschine entwickelt und gebaut hat.Wie sie entstand, wie sie die Welt erobert hat und warum diese grandiose Maschine wieder in der Vergessenheit versank, davon wird in diesem Buch berichtet.

Marvin Sascha Wahl presents the possibilities for optimising diesel engine combustion. In the advanced process of partially premixed diesel combustion, nitrogen oxide and soot emissions can be minimised at the same time. A new feature is the possibility of applying this strategy up to 2000 revolutions and 10 bar indicated mean pressure. In this work, various effective parameters are also compared and correlated with each other. A final comparison with conventional diesel combustion shows the advantages and disadvantages and evaluates them.

This book deals with the simulative prediction of efficiency and CO2-emissions of future powertrain systems for the year 2040. For this purpose, a suitable simulation environment is first created. This is followed by a technology extrapolation of all relevant powertrain systems, for example: combustion engines, electric drives, fuel cells as well as all relevant additional components. These components are then used to build 57 vehicle variants for the simulation. Finally, extensive simulations of the vehicle variants are carried out, evaluated and compared. Comprehensive tables of results are available for all simulated vehicle variants. The evaluations are of interest to anyone concerned with energy consumption and CO2-emissions of future vehicles.

This book provides a comprehensive overview of a wide range of surfacing methods, detailing their physical basics and technologies.Each section of the book provides information on the formation of the structure and properties of the deposited metal, the reasons for the formation of defects, and directions for prevention. The book also covers the certification of surfacing procedures, adhering to international standards.With a focus on practical applications, the book is an essential reference for anyone working in the field of welding and related technologies. It includes detailed illustrations and diagrams, making it easy to understand and follow the concepts.

This book overcomes the separation existing in literature between the static and the dynamic bifurcation worlds. It brings together buckling and post-buckling problems with nonlinear dynamics, the bridge being represented by the perturbation method, i.e., a mathematical tool that allows for solving static and dynamic problems virtually in the same way. The book is organized as follows: Chapter one gives an overview; Chapter two illustrates phenomenological aspect of static and dynamic bifurcations; Chapter three deals with linear stability analysis of dynamical systems; Chapter four and five discuss the general theory and present examples of buckling and post-buckling of elastic structures; Chapter six describes a linearized approach to buckling, usually adopted in the technical literature, in which pre-critical deformations are neglected; Chapters seven to ten, analyze elastic and elasto-plastic buckling of planar systems of beams, thin-walled beams and plate assemblies, respectively; Chapters eleven to thirteen, illustrate dynamic instability phenomena, such as flutter induced by follower forces, aeroelastic bifurcations caused by wind flow, and parametric excitation triggered by pulsating loads. Finally, Chapter fourteen discusses a large gallery of solved problems, concerning topics covered in the book. An Appendix presents the Vlasov theory of open thin-walled beams. The book is devoted to advanced undergraduate and graduate students, as well as engineers and practitioners. The methods illustrated here are immediately applicable to model real problems.The BookIntroduces, in a simple way, complex concepts of bifurcation theory, by making use of elementary mathematicsGives a comprehensive overview of bifurcation of linear and nonlinear structures, in static and dynamic fieldsContains a chapter in which many problems are solved, either analytically or numerically, and results commented

This volume collects contributions on leading figures in mechanism and machine science (MMS) from Spain and Ibero-America over the last two centuries. The contributions examine scientists whose work resulted in relevant technical-scientific achievements, with an impact on technology and science in the historical evolution of MMS fields, and with an influence on the development of society at large. Biographical notes describing the efforts and achievements of these persons are included as well, but a technical survey is the core of each chapter, offering a modern interpretation of their legacy.

This textbook is intended for students who are in the first or second year of a typical college or university program in mechanical engineering or a closely related field. Throughout the chapters of this book, I attempted to balance the treatments of technical problem-solving skills, engineering principles and analysis with numerous worked examples. Practice exercises are also included for you to test your understanding of each topic treated in the book.The book begins with scalar and vector quantities in Chapter 1. In Chapter 2 you will study dynamics. You will learn rectilinear motion of particles, basic equations of motion, displacement, speed, velocity, acceleration, torque, Newton's laws of motion, principles of conservation of energy, momentum and different types of forces. You will also be introduced to the concept of work, energy and power.In Chapter 3, we will return to statics. We will look at moments and frictional forces. You will learn the laws of Friction, friction on an inclined plane, tractive resistance, and application of friction to brakes and bearings. In Chapter 4, we will move on to circular motion. You will learn about motion in a circle and centripetal force with worked examples.In Chapter 5, you will study mechanical oscillations. You will learn simple harmonic motion, damped oscillation, forced oscillation and resonance.In Chapter 6, we will look at the principles of machine, such as mechanical advantage, velocity ratio (speed ratio) and efficiency. You will learn with worked examples application of machines, such as the inclined plane, screw jack, wheel and axle, the hydraulic press, gear trains, the worm wheel, belt tension and belt slip.Chapter 7 is all about fluid at rest. We will look at pressure at a depth in a fluid, pressure measuring instruments, atmospheric pressure, pressure gauges, surface tension and Archimedes' principle with worked examples. Chapters 8 is dedicated to fluid dynamics. We will look at properties of fluid such as density, viscosity, turbulent flow, Bernoulli's equation and momentum of fluid with worked examples.In Chapter 9, you will study energy and its uses, and different sources of energy, such as solar, wind. water and biofuels. You will also learn about thermal power station, hydroelectric power station, and so on.In Chapter 10, I provide a link to download a bunch of practice exercises and answers, and other training resources. You can use them for quick references and revision as well. So, everything you need to help you in your study is here in this book. This will give you more problem-solving and analytical skills. It will also help you to learn some of the calculations and estimates or approximations that mechanical engineers can perform as they solve technical problems and communicate their results. For mechanical engineers to accomplish their jobs better and faster, they combine science, mathematics, computer-aided engineering tools, hands-on skills and experience. My support link is also included in this book for you to contact me any time if you need further help.Finally, please note that after studying this book, you will not be an expert in mechanical engineering. That is not my intention of writing this book, and it should not be yours for reading it. If my objective has been met, however, you will acquire a solid foundation of problem-solving and analytical skills, which just might form the basis for your own future contributions to the mechanical engineering profession.

This book is entirely devoted to sampled-data control systems analysis and design from a new point of view, which has at its core a mathematical tool named Differential Linear Matrix Inequality - DLMI, a natural generalization of Linear Matrix Inequality - LMI, that had an important and deep impact on systems and control theory almost thirty years ago. It lasts until now. It is shown that the DLMI is well adapted to deal with the important class of sampled-data control systems in both theoretical and numerical contexts. All design conditions are expressed by convex programming problems, including when robustness against parameter uncertainty is assessed and imposed through state feedback control.Special attention is given to filter, dynamic output feedback and model predictive control design, as well as nonlinear systems of Lur¿e class and Markov jump linear systems. The subject is treated with mathematical rigor, at the same time, trying to keep the reading agreeable and fruitful for colleagues and students. To this respect, the book contains together with the theoretical developments, many solved illustrative examples and the formulation of some open problems that could be faced and hopefully solved by interested readers.

The book provides readers with a snapshot of recent research and industrial trends in field of industrial acoustics and vibration. Each chapter, accepted after a rigorous peer-review process, reports on a selected, original piece of work presented and discussed at the Fourth International Conference on Acoustics and Vibration (ICAV2022), which was organized by the Tunisian Association of Industrial Acoustics and Vibration (ATAVI) and held in hybrid format on December 19¿21, 2022, in and from Sousse, Tunisia. The contributions cover advances in both theory and practice in a variety of subfields, such as structural and machine dynamics and vibrations, fault diagnosis and prognosis, nonlinear dynamics, and vibration control of mechatronic systems. Further topics include fluid¿structure interaction, computational vibro-acoustics, vibration field measurements, and dynamic behavior of materials. This book provides a valuable resource for both academics and professionals dealing with diverse issues in applied mechanics. By combining advanced theories with industrial issues, it is expected to facilitate communication and collaboration between different groups of researchers and technology users.

This book presents a guided wave-based structural health monitoring (GWSHM) system for aeronautical composite structures. Particular attention is paid to the development of a reliable and reproducible system with the capability to detect and localise barely visible impact damage (BVID) in carbon-fibre-reinforced polymer (CFRP) structures.TThe authors introduce a novel sensor installation method that offers ease of application and replacement as well as excellent durability. Electromechanical Impedance (EMI) is also explored to assess the durability of the sensor installation methods in simulated aircraft operational conditions including thermal cycles, fatigue loading, and hot-wet conditions.Damage characterisation using GWSHM is described and used to investigate damage in different CFRP structures. Key issues in guided wave-based damage identification are addressed, including wave mode and frequency selection, the influence of dynamic load, the validity of simulated damage, and the sensitivity of guided waves to impact damage in different CFRP materials.The influence of temperature on guided wave propagation in anisotropic CFRP structures is described, and a novel baseline reconstruction approach for temperature compensation is presented. Finally, a multi-level hierarchical approach for the quantification of an ultrasonic GWSHM system is put forth.

Sergei Hahn erarbeitet eine Vorgehensweise, mit der modellbasierte Betriebsstrategien für PEM-Brennstoffzellensysteme entwickelt werden können. Die Betriebsstrategie beeinflusst dabei einerseits die Leistungsaufteilung zwischen Batterie und Brennstoffzellensystem und andererseits die Betriebsbedingungen innerhalb des Brennstoffzellensystems. Durch den Einsatz modellbasierter Verfahren ist es möglich, sowohl die Effizienz als auch die Lebensdauer des Brennstoffzellensystems im Betrieb zu optimieren.

This book covers designing of various machine elements and serves as a reference for mechanical designing of machine elements in academia and industry. It provides information on designing approaches and several examples and problems, enabling readers to make all of their required calculations for their specific mechanical design or fabrication tasks by using the book's plots (graphs), instead of complicated formulas.

Computational Modeling Applications for Climate Crisis provides readers with innovative research on the applications of computational modeling to moderate climate change. The book begins with an overview and history of climate change, followed by several chapters covering the concepts of computational modeling and simulation, including parameters of climate change, modeling the effects of human activities, visualization tools, and data fusion for advanced modeling applications. It then proceeds to cover decision support systems, modeling of technological solutions for climate change, modeling of greenhouse gas emissions, tracking of climate factors, and modeling of earth resources. In the final chapters of the book, the authors cover nation-based outcomes, big data, and optimization solutions with real-world data and case studies. Climate change is one of the most pressing existential issues for humans and the planet, and this book covers leading-edge applications of computational modeling to the vast array of interdisciplinary factors and challenges posed by climate change. As life itself is a mixture of occurrences that can be mathematically modelled, it is important to work with specific parameters, which are critical for monitoring and controlling the dynamics of the earth, natural resources, technological factors, and human activities.