für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Hardfacing by welding is the most economic way to enhance the life of the components which are exposed to high abrasion environment. Chromium rich electrodes are widely used due to their low cost. It is planned to study the effect of carbon and chromium over a wide range, on the resultant microstructure as well as wear behavior of the deposited layers, of the bottom plate of concrete mixer used in ready mix concrete plant.Six types of iron-based hardfacing electrodes with a wide range of C (0.6-5% by wt.) and Cr (3.5-35% by wt.) were selected to deposit, by the manual metal arc welding process on the mild steel plate of concrete mixer. The abrasive wear responses, hardness and the microstructures were compared with that of mild steel.Abrasion tests were carried out in a sliding wear abrasion test machine. surface analysis were made using SEM-EDAX, XRD Analysis.Field test was performed, by hardfacing on the actual size mild steel plate.The extent of improvement in wear performance of mild steel due to all hardfacing alloys is quite appreciable as compared to mild steel. Further the life of hardfaced plate was enhanced by 3.11 times compared to mild steel plate resulting net cost ····· 10361100122
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A common application of plasma spray is for the deposition of ceramic thermal barrier coatings to gas turbine engine parts, used not only in jet propulsion, but also in electrical power generation. These engines operate at temperatures well above the melting points of their parts, and rely on these coatings to help maintain engine integrity. The coating deposition process, however, has its drawbacks. Over the life of a plasma gun, adjustments to various inputs are needed to create a balance between process efficiency, coating thickness gain, microstructure, and surface roughness. To date, no single broad mathematical model fully describes the impact of these inputs. The purpose of this work was to identify and measure the significant factors that contribute to the variations in properties associated with a quality deposited plasma spray ceramic coating to eventually predictably control these inputs to maintain consistent coatings throughout the life of a plasma gun. ····· 10361100116
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In any manufacturing process, production cost is of importance in the production process, one major part in production cost is the electrical energy cost. However, factory managers often pay little attention to energy costs in general, and electricity costs in particular, because they are simply regarded as non-manageable . By applying electrical load management techniques industrial facilities could achieve cost saving in electrical energy consumption due to reducing the peak demand. This achievement could be reached by optimally scheduling the electrical loads/processes. This book discusses in details the importance of electrical load management as one of the hottest topics in present and next decades. Based on load shifting technique, it provides a systematic approach in modeling and analysis of load management practical problems. ····· 10361100081
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray One of the rock drills of valveless type, developed at Atlas Copco Rocktec Division works at higher efficiency than the conventionally used rock drills. But the problem with this type of drill is that the piston swings between two large and highly pressurized oil volumes which causes strength problems in the housing of the rock drill. The aim of this work is to achieve the higher efficiency of the rock drill without having any strength problems. Therefore, some study and research is proposed to replace the large oil volume by one or two piston accumulator. The thesis work involves modelling, simulation, design and fatigue strength calculations of a piston accumulator and its implementation to the rock drill. Optimization of the piston accumulator has also been conducted while working with the rock drill so that highest possible efficiency could be achieved. The performance of the rock drill with piston accumulator has been analyzed and results are studied. In the end, a short fatigue life calculations are performed. This book is really helpful for students and professionals in understanding the working principal of Hydraulic Rock Drill through advanced simulation techniques. ····· 1036199939
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Thermal comfort is one of the main issues in vehicles including a mining dumper. Since, these vehicles are operating in a dusty and hot environment, cabin temperature in such vehicles are much higher than in normal vehicles. This project is an attempt at improving the cabin environment and thermal comfort, without resorting to expensive HVAC systems. As seen from the results, it is possible to lower the peak temperature by providing natural ventilation system combined with air filters. Improved comfort level will help the driver as well as the co-driver to operate for longer distances. In this project work, the BH100 dumper cabin model has been selected for improvement. The geometrical model was created in CATIA V5 tool. The inlet and outlet vents position and the air filter was decided in such a way that it protects the cabin from dust while providing circulation. These modifications were evaluated with standard CFD tool set HYPERMESH, GAMBIT and FLUENT. Air flow and temperature distribution contours inside the cabin are presented for un-changed baseline model. Several concepts were arrived at and evaluated for impact on cabin environment and these are presented in the thesis ····· 1036199830
für 21.51€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph used in experimental investigations a crank and connecting rod mechanism with one of the kinematic links made of different materials. The longest link was made of linear viscoelastic material in the first part of the study and the stress and strains were highlighted the influence of the behavior of this particular type of material above the vibrations of the kinematic element was studied. The second part of the study used a deformable elastic material for the longest link. Moreover this link was subjected to the pressure of the oil from a rectilinear pair during the motion of the mechanism. There were used in experimental investigations different types of oils as lubricants of the rectilinear pair and the vibrations of the elastic kinematic element were studied. ····· 1036199815
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Additive Manufacturing is a new manufacturing method which adds material layer-by-layer to produce an object. This report set out to investigate a number of questions relating to Additive Manufacturing and its implications on current design practice, products and users. An introduction to Additive Manufacture as a process and how it has evolved from Rapid Prototyping is given. This report documents the Design for Manufacture constraints which Injection Moulding, a traditional manufacturing method, incurs and gives details of why most do not apply to Additive Manufacturing. The main freedom of traditional constraints comes from the nature of Additive Manufacturing being tool-less and therefore considerations such as constant wall thickness and non-undercutting geometry are not applicable. New constraints when Designing for Additive Manufacture are given and explained including the need to remove support material or excess resin from within hollow geometry. Further still this report investigates consumer awareness and reception to Additive Manufacture through primary research in the form of a questionnaire the first research of its kind into this topic. ····· 1036199790
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Conceptual design is considered as the most critical and important phase of design process. It is the stage where product s fundamental features are determined, large proportion of the life cycle cost of the product is committed, and other major decisions are made, which have significant impact on the downstream design and manufacturing processes. It is a knowledge intensive process where diverse knowledge and several years of experience are put together to design quality and cost effective products. Unfortunately, computer support systems for this phase are lagging behind compared to the currently available commercial computer aided design tools for the later stage of design. This book presents a framework of computer based computational tool known as conceptual design support tool to address these problems. The tool assists designers, mainly mechanical engineers, in performing functional modelling, concept generation, displaying the generated concepts on the morphology chart, concept combination, and concept evaluation in the early stage of design. The book also addresses design knowledge management system by using design reuse philosophy for future design. ····· 1036199699
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In today s competitive world customers desire goods and services of a high quality, at a reduced cost and with on time delivery. At short notice they choose small quantities from a large variety. In turbulent environment it is a challenge to satisfy the customer. Hence, the JS manufacturers are under constant and intense pressure to quickly and continuously improve their operations by enhancing productivity, quality and responsiveness. Noticeable, the JS sector is currently encountering difficulties at all levels. A manufacturing firm in the JS sector was analysied to improve its operations where emphasis was placed at the operational level. The objectives of this research were to reduced ST and FT for customers jobs. Hence, strategies were adapted, analysis and compared. The result clearly supported the implementation of VCM over CM and the existing strategy of JS operation. Therefore, JS manufacturers with operational issues would find this reading applicable. With limited resources available to reduce waste and enhance responsiveness they should follow the steps as outlined in this text to configure virtual cellular layouts for flexibility. ····· 1036199653
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this study, the aim is to implement integration of design analysis and control procedures of an hexapod planned to use medical operations whereas required micro positioning. Hexapods with their high accuracy, high stiffness and dynamic properties are widely used parallel robots in such areas, medical, aviation, astronomy. In this study a method is developed to integrate all required engineering procedures for design and control of robots and applied to hexapod. In solid modeling SolidWorks (Dassault Systems, 2007), in machine dynamics analysis, CosmosMotion, in finite element rigidity analysis CosmosWorks software packages and in motor control software of ADLINK company are used. With VisualBasic software package integration is established by using API ( Application programming interface ) of software and ActiveX control properties. Using this method parametric modeling software is developed and hexapod prototype is designed, then manufactured. Again with this method point to point and trajectory motion control software is developed. In addition in this study a mechanical solution for reducing backlash has been designed and applied to the prototype. ····· 1036199607
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the era of knowledge economy, the pressures from the globalization, hyper-competition and sustainable development propel companies to innovate. Meanwhile, it is widely recognized that knowledge is the only sustainable resource for innovation and the competitive advantage of companies. Consequently, how to turn the available knowledge into profitable innovations has become the key research problem of this study. In order to understand the phenomenon of innovation and knowledge, multidisciplinary fields such as knowledge and its management, innovation, design and artificial intelligence have been investigated. Based on our analyses and argumentations, an integrated approach of knowledge management for innovation has been proposed by integrating the meta-model and macro process of knowledge management with the networking process of innovation and design. Based on the integrated approach, a software prototype has been built with Java and presented with an industrial case study. The book should help shed some light on the knowledge dynamics for innovation in design and be useful to professionals and students in the fields of knowledge management and innovation in design. ····· 1036199597
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Natural gas is a mixture of hydrocarbon gases that occur in petroleum deposits. It is principally composed of methane and varying quantities of ethane, propane, and heavier hydrocarbons, and is used as a fuel and in the manufacture of organic compounds. These hydrocarbon components exist in multiple phases according to changes in temperature, pressure and composition. Under certain conditions solids may also precipitate, resulting in changes to the fluid properties. Macroscopically, hydrate structures appear similar to ice or snow, but unlike ice hydrates can be stable at temperatures above 0ºC. The interest in hydrates has significantly increased because of their potential as a separating agent and as a storage vehicle. Gas hydrates found in deep seas and permafrost provide a large amount of methane. Other positive applications include carbon dioxide sequestration, separation and natural gas storage. In return, the occurrence of such solids may lead to severe problems in oil and gas production systems. Besides, its physical properties may include an important bearing on flow assurance and safety matters, posing a major risk in all high-pressure oil and natural gas transport lines. ····· 1036199540
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The escalating cost of material testing in terms of money and time for critical components in some industry fields such as aerospace, transportation, and military increases the need for a an effective, fast, and cheap testing method that can efficiently estimate the structure s mechanical properties. This book introduces the use of modal analysis in a novel approach towards the identification of mechanical properties for metallic components. Modal analysis has been known as an efficient technique in predicting the dynamic parameters of metal structures. In this book, an extensive investigation to find a relationship between the mechanical properties and dynamic parameters of metallic elements is described. Part of the book is devoted to predicting the effects of heat treatment of steel and ductile cast iron by the means of dynamic testing. A simple application of labVIEW programming software for the automation of the identification process is described. ····· 1036199519
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Accurate analysis of fracture is of vital importance yet methods for effective 3D calculations are currently unsatisfactory. In this book, novel numerical techniques are developed which solve many of these problems. At the start of the book, various issues relating to the meshless methods in general are dealt with although the vision is always on the 3D fracture modelling. Studies are presented concerning the solution accuracy, error control, modified weak forms and implementation. In the latter part, a simple and efficient numerical framework is developed to overcome the difficulties in current 3D fracture modelling. One major focus is the innovative use of level sets in 3D fracture modelling with the meshless methods which has been explored in a number of different ways. Difficulties related to accurate jump enrichment in the meshless methods and advancement of level sets are highlighted and solved by the developed methods. The work presented is applicable to the fracture modelling of engineering materials such as steel, concrete and rock. The book is adopted from the author`s PhD thesis awarded with Zienkiewicz prize for the best PhD thesis in computational mechanics in 2010. ····· 1036199463
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This project is to visualize the automated plate cutting operation using plasma cutter. The main idea behind it, is about to let the machine does all the understanding of a human being in interpreting a Solidworks drawing. It will discuss on how a neutral dxf file play the role as the interchange format file to convey the instruction to the machine (cutter). ····· 1036199364
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph presents the outcome of our investigation that was conducted to correlate process variables in shielded metal-arc welding and post weld heat treatment on some mechanical properties of low carbon steel weld. From the results obtained we observed that welding current and post weld heat treatment temperatures influences the tensile strength, impact strength and hardness of welded low carbon steel. As the welding current increases the hardness and strength increases but impact strength reduces, while hardness and strength continuously reduces but impact strength increases as post weld heat treatment temperatures increases. This outcome will help to eliminate much of the guess work often employed by welders to specify welding parameters and help them to properly select them for a given task to provide a good weld quality. With this finding welder can now adequately select welding currents and post weld heat treatment temperatures for low carbon steel that will yield quality weld in shielded metal-arc welding without guess work. ····· 1036199322
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Piezoelectric elements have been widely used in recent past to detect cracks and damages of plates in aerospace applications. This book investigates the characteristics of the piezoelectric elements, and their usability to monitor the wear characteristics of cutting tools. The experimental procedures adopted to evaluate the utility performance of piezoelectric actuators are elaborately discussed in the book. Frequency response/non linear characteristics of piezoelectric elements are revealed, and the methodology used to obtain optimum electrical response received from the actuators is explicated. The book also describes how piezoelectric actuators are used as sensors, and receiving resonators, to monitor wear levels of an End mill. Further, it describes how Surface Elastic Waves and Frequency Response to Excitation techniques are compatible for wear monitoring, with piezoelectric elements as sensors. Data acquisition and signal processing techniques followed in this study are intricately demonstrated to effectively classify the levels of Mill wear during its operation. ····· 1036199317
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Improvements to the diesel injection system parameters help to meet future, more stringent exhaust gas limits and appear to be a decisive factor to achieve further engine emission targets. The search for alternatives to petroleum-based fuels is probably a solution which, together with an improved diesel injection system, may help to reduce harmful emissions and to diversify energy sources, thus improving the security of energy supply. The first part of this book treats the design and implementation of an injector test bench for investigating the hydraulic injection behaviour of diesel injectors. In the second part, this study presents its contribution to defining the basis for premium synthetic fuels. In order to define new diesel alternatives, seven synthetic blends of components with different chemical structures were defined and investigated. A study to identify dependencies of the injection rate profile on the fuel s physical properties was conducted by comparing the injection rate profiles obtained with the different fuels. This book treats the development of a Bosch tube-type injection rate measuring system and its application in a research project. ····· 1036199313
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Composites are one of the most advanced and adaptable engineering materials. A fast progress in the field of materials science and technology has given birth to these fascinating and wonderful materials. Composites are heterogeneous in nature, created by the assembly of two or more components with fillers or reinforcing fibers and a compactable matrix. The matrix may be metallic, ceramic or polymeric in origin. It gives the composites their shape, surface appearance, environmental tolerance and overall durability while the fibrous reinforcement carries most of the structural loads thus giving macroscopic stiffness and strength. A composite material can provide superior and unique mechanical and physical properties because it combines the most desirable properties of its constituents while suppressing their least desirable properties. ····· 1036199059
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book gives a detailed coverage on lasers, their applications in machining, a step by step direction on designing and making of a carbon-dioxide laser. It also gives the effects of lasers on materials and explains the causes of these effects and how optimization can be achieved to get the best possible cut parameters. With the gained knowledge, the reader can design a laser and even achieve this optimization. ····· 1036198959
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Numerical simulations of flow induced vibration has gained a great of attention over the past decade. With the advancement in the field of aero-elasticity it is now possible to obtain computational prediction of vibrations due to the flow conditions. However challenges are due to complexities in the description of flow physics and non-linearity. ····· 1036198924
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Self-Piercing riveting process is a new technology for joining sheet metals in automobile and aircraft industries. This process has many advantages over conventional joining processes. In this thesis, failure of a self-piercing riveted joint is investigated. Failure of three different riveted configurations under 35m/s and 60m/s velocities were predicted using the general purpose non-linear finite element software LS-DYNA. Detailed discussion about methods of simulation and spring-back analysis have been written in this document. ····· 1036198853
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In today s competitive world, Companies expect the improvements for growth with SMART (Specific, Measurable, Achievable, Realistic, Timed) objectives. Many KPI s have been developed among which, Equipment measurement is one of the important factors to decide the overall plant performance. For the above measurement, a quantifiable indicator is Overall Equipment Effectiveness (OEE) which should be 85% as per World Class Manufacturing. Equipment Effectiveness influences productivity, costs and quality. Higher values of equipment effectiveness indicate plant has minimized or eliminated wastages that arise from equipment related problem resulting in better productivity. This Book focuses on improving of OEE by addressing & solving of six major losses with proper methodology & corrective action methods. This book emphasizes on Problem Analysis with QC and Management Planning tools such as Root cause analysis, 5 Why analysis, Cause & Effect diagram, problem solving methodologies, Implementation of Maintenance systems, Standardized work and Low cost automation techniques. ····· 1036198830
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In recent decades, condition-based maintenance (CBM) is acknowledged a cost-effective and widely used maintenance program for engineering systems. Diagnostics and prognostics are critical components of CBM responsible for offering information about present and future system conditions. These two components are respectively an integrated process covering several aspects that are essential for successful implementations of diagnostics and prognostics. For diagnostics, data to be used should be clean and useful. Data cleaning can provide clean data by removing outliers caused by noise, while feature selection can select useful characteristic features for fault classification. For prognostics, noise may appear in condition indicator values. Using such noisy values may result in unreliable predictions for prognostics. A method is thus demanded to provide predictions without noise effects. Support vector machine (SVM), a machine learning method, is recognized having good generalization ability and an effective tool for classification and prediction needed by diagnostics and prognostics. This book explores the potentials of SVM for addressing above problems in diagnostics and prognostics. ····· 1036198756· 1 · ::::: · 40 ·· 41 ·· 42 ·· 43 ·· 44 ·· 45 ·· 46 · ::::: · 83 ·
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