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Machine Design for Technology Students - Anthony D'angelo Jr. - Bog - Springer International Publishing AG - Plusbog.dk

Machine Design for Technology Students - Anthony D'angelo Jr. - Bog - Springer International Publishing AG - Plusbog.dk

This book is intended for students taking a Machine Design course leading to a Mechanical Engineering Technology degree. It can be adapted to a Machine Design course for Mechanical Engineering students or used as a reference for adopting systems engineering into a design course. The book introduces the fundamentals of systems engineering, the concept of synthesis, and the basics of trade-off studies. It covers the use of a functional flow block diagram to transform design requirements into the design space to identify all success modes. The book discusses fundamental stress analysis for structures under axial, torsional, or bending loads. In addition, the book discusses the development of analyzing shafts under combined loads by using Mohr''s circle and failure mode criterion. Chapter 3 provides an overview of fatigue and the process to develop the shaft-sizing equations under dynamic loading conditions. Chapter 4 discusses power equations and the nomenclature and stress analysis for spur and straight bevel gears and equations for analyzing gear trains. Other machine component topics include derivation of the disc clutch and its relationship to compression springs, derivation of the flat belt equations, roller and ball bearing life equations, roller chains, and keyways. Chapter 5 introduces the area of computational machine design and provides codes for developing simple and powerful computational methods to solve: cross product required to calculate the torques and bending moments on shafts, 1D stress analysis, reaction loads on support bearings, Mohr''s circle, shaft sizing under dynamic loading, and cone clutch. The final chapter shows how to integrate Systems Engineering into machine design for a capstone project as a project-based collaborative design methodology. The chapter shows how each design requirement is transformed through the design space to identify the proper engineering equations.

DKK 426.00
1

CAT(0) Cube Complexes - Petra Schwer - Bog - Springer International Publishing AG - Plusbog.dk

CAT(0) Cube Complexes - Petra Schwer - Bog - Springer International Publishing AG - Plusbog.dk

In recent years cube complexes have become a cornerstone topic of geometric group theory and have proven to be a powerful tool in other areas, such as low dimensional topology, phylogenetic trees or in the context of optimization problems. This book covers a wide variety of algebraic and geometric properties of cube complexes and the groups acting on them. The content ranges from basic properties of metric spaces, notions of non-positive curvature, Gromov's link condition and the Švarc–Milnor theorem to advanced material such as the cubulation of half-space systems and the Roller boundary, the construction of cube complexes associated with Coxeter groups, and the Tits alternative for cubical groups. Being the first self-contained, comprehensive introduction to cube complexes this book serves as an entry point for researchers interested in the subject. The material is accessible to advanced undergraduate and graduate students. The text is illustrated with many figures and examples and comes with a large collection of exercises.

DKK 476.00
1

PDE Models for Atherosclerosis Computer Implementation in R - William E. Schiesser - Bog - Springer International Publishing AG - Plusbog.dk

PDE Models for Atherosclerosis Computer Implementation in R - William E. Schiesser - Bog - Springer International Publishing AG - Plusbog.dk

Atherosclerosis is a pathological condition of the arteries in which plaque buildup and stiffening (hardening) can lead to stroke, myocardial infarction (heart attacks), and even death. Cholesterol in the blood is a key marker for atherosclerosis, with two forms: (1) LDL - low density lipoproteins and (2) HDL - high density lipoproteins. Low LDL and high HDL concentrations are generally considered essential for limited atherosclerosis and good health. This book pertains to a mathematical model for the spatiotemporal distribution of LDL and HDL in the arterial endothelial inner layer (EIL, intima). The model consists of a system of six partial differential equations (PDEs) with the dependent variables1. ????(????,????): concentration of modified LDL2. h(????,????): concentration of HDL3. ????(????,????): concentration of chemoattractants4. ????(????,????): concentration of ES cytokines5. ????(????,????): density of monocytes/macrophages6. ????(????,????): density of foam cellsand independent variables1. ????: distance from the inner arterial wall2. ????: timeThe focus of this book is a discussion of the methodology for placing the model on modest computers for study of the numerical solutions. The foam cell density ????(????,????) as a function of the bloodstream LDL and HDL concentrations is of particular interest as a precursor for arterial plaque formation and stiffening. The numerical algorithm for the solution of the model PDEs is the method of lines (MOL), a general procedure for the computer-based numerical solution of PDEs. The MOL coding (programming) is in R, a quality, open-source scientific computing system that is readily available from the Internet. The R routines for the PDE model are discussed in detail, and are available from a download link so that the reader/analyst/researcher can execute the model to duplicate the solutions reported in the book, then experiment with the model, for example, by changing the parameters (constants) and extending the model with additional equations.

DKK 426.00
1

Powder Consolidation Using Cold Spray - Atieh Moridi - Bog - Springer International Publishing AG - Plusbog.dk

Powder Consolidation Using Cold Spray - Atieh Moridi - Bog - Springer International Publishing AG - Plusbog.dk

This book firstpresents different approaches to modeling of the cold spray process with theaim of extending current understanding of its fundamental principles and thendescribes emerging applications of cold spray. In thecoverage of modeling, careful attention is devoted to the assessment ofcritical and erosion velocities. In order to reveal the phenomenologicalcharacteristics of interface bonding, severe, localized plastic deformation andmaterial jet formation are studied. Detailed consideration is also given to theeffect of macroscopic defects such as interparticle boundaries andsubsequent splat boundary cracking on the mechanical behavior of cold spraycoatings. The discussion of applications focuses in particular on therepair of damaged parts and additive manufacturing in various disciplinesfrom aerospace to biomedical engineering. Key aspects include a systematicstudy of defect shape and the ability of cold spray to fill the defect,examination of the fatigue behavior of coatings for structural applications,and a novel working window at subcritical conditions toobtain porous structures. This book is exceptional in scope, and its review offinite element modelling at different length scales sheds light on futuredesign and process improvement in emerging applications such as structuralrepair, metal additive manufacturing and metal foam design.

DKK 426.00
1