für 32.31€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Para estudiar el comportamiento de estructuras con materiales nuevos o existentes, surge la necesidad de realizar pruebas con cargas mecánicas. Los resultados de estas pruebas permiten analizar el comportamiento del espécimen según el tipo y magnitud del esfuerzo al que estará sometido. Una buena opción para simular ese tipo de carga son los cilindros o actuadores neumáticos. En este libro se presenta el desarrollo y la validación de diseños mecánicos, neumáticos, y el diseño de los sistemas de control, visualización y adquisición de datos para cilindros neumáticos ubicados en mini-marcos de carga. El mini-marco se compone de un sistema mecánico, un sistema neumático, sistemas de control, una interfaz gráfica de usuario, sistemas de adquisición de datos, el diseño de un circuito de potencia y la descripción de transductores. En el libro se muestran pruebas realizadas en un entorno real con el sistema completamente automatizado, y con el control de fuerza y desplazamiento implementado. La automatización propuesta para los cilindros neumáticos es práctica y económica para el estudio de la resistencia de materiales utilizados en el campo de la ingeniería estructural. ····· 1036121726
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Este trabajo pretende llenar el vacío existente en la literatura técnica en el tema de las soluciones mecatrónicas en el desarrollo de bancos pórticos, este texto pone énfasis en la transmisión hidráulica. Consta de tres capítulos. El primero analiza el estado del arte donde se brinda una breve explicación acerca de la reconversión, la mecatrónica y se explica la necesidad de los sensores y los PLC. Además se argumenta sobre los tipos de cilindros hidráulicos que se emplean en los bancos porticos, se deduce un modelo matemático a partir del movimiento armónico simple. El último capítulo se dimensiona el circuito de la prensa portico conceptualizada. Este material permite dominar un segmento del know how para llegar a proponer soluciones mecatrónicas en el desarrollo de prensas pórticos, la conceptualización propuesta ayuda a tomar decisiones en el diseño de otras máquinas industriales. Además permite entender la vinculación entre la electrónica, la Oleohidráulica, el control y la informática. Este libro puede satisfacer exigencias de profesionales y estudiantes que se dediquen al desarrollo y diseño mecatrónica de maquinas e instalaciones industriales. ····· 1036121656
····· lezzter Preis 79.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the last four decades, the legged robots had been widely investigated due to their better mobility and terrain adaptability characteristics, while moving on natural terrains. Kinematics, dynamics, stability and energy consumption analysis of different types of gaits are the key elements of study in the field of multi-legged robots` locomotion. In the present book, a systematic analytical model has been developed to study the kinematics and dynamics along with energy efficiency and stability of a realistic six-legged robot, negotiating straight-forward, crab and turning motions. Moreover, soft computing-based models, namely back-propagation algorithm-tuned multiple adaptive neuro-fuzzy inference systems genetic algorithm-tuned multiple adaptive neuro-fuzzy inference systems genetic algorithm-tuned coactive neuro-fuzzy inference systems and genetic algorithm-tuned back-propagation neural networks, have been developed to predict specific energy consumption and normalized energy stability margin in straight, crab and turning motions of the said robot. This book could be useful to researchers and technologists working in the field of mobile robots. ····· 1036121622
····· lezzter Preis 55.71€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book, deals with the steel structures according to European Standards: EC0, EC1, EC3 and with introductory references to U.S. Standards: IBC, ASCE 7, and AISC. The ultimate goal of the book is that the appropriate organizations soon come to agreement on a political and scientific basis in order to adopt one set of design standards for use around the world. The rigorous theoretical discussion is enhanced with practical applications and exercises that help understanding and expand the theory for use by the practicing engineer or student. The topics covered in are divided into five chapters, and includes six useful appendixes as well. The chapters included are: Chapter 1: Materials Chapter 2: Limit state design Chapter 3: Connections Chapter 4: Trusses and Bracing Chapter 5: Beams. The book is aimed at both the student of structural and civil engineering as well as the practicing professional engineer. It can be used as a supporting book in courses on structural design, or used as a reference for design engineers. ····· 1036121542
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Why explore a dead planet Is it worth the efforts The great advantages by doing advanced scientific experiments and observations on the far side of the moon are the lack of atmosphere and it is shielded from the electromagnetic noise and light emitted by Earth. For many years now, a large number of scientists and engineers have been planning in detail for that possibility. The results are carefully gathered and valuated from several different samples collected from the Moon and even advanced Satellite photos shows that it is possible to build a self-sufficient Lunar Colony. Most of the needs for this colony can be supported by the moon itself. The Regolith (lunar dust) contains almost every element we need for our survival. The issue is to adapt it by mining activities and the capability to store it in a proper way. The size of the colony would be at least five hundred people of various ages, gender, and skills. It is a hardworking and dangerous existence and both technical (e.g. basic manufacturing tools and methods) and psychological issues have to be solved. Hopefully the Lunar Colony can be a reality in close future and we all can gain the outcome of this great expedition. ····· 1036121488
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The text presents an introduction to various Rapid Manufacturing processes. A detailed literature review related to the benchmarking studies of various Rapid Manufacturing processes is presented and based on the literature review, a new design of benchmarking part is proposed. The part contained various features such a flat base, cubes, cones, spheres, cylinders etc to measure the accuracy and repeatability of parts manufactured via Rapid Manufacturing proceses . The part was built using a novel Rapid Manufacturing process known as High Speed Sintering (HSS). THe built part was measured using a Coordinate Measuring Machine to evaluate the technical capabilities of High Speed Sintering Process. ····· 1036121479
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Chemical modification is an often-followed method to replace glass fibers with wood fibers to reinforce polymer composites in order to produce biomaterials. However due to the surface incompatibility and weak adhesion between polymer and fiber, many new chemical and binder added were introduced by researchers to improve the mechanical and physical properties of wood polymer composites (WPC). In this study, liquefied tropical wood polymer composites (LTWPC), WPC, treated WPC (TWPC) and binder treated WPC (BTWPC) composite panels were made by using hot-press moulding with varying formulations based on the filler type (LTW, treated sawdust and binder). The effect of LTW, treated sawdust and binder as fillers were investigated. Liquefied tropical wood polymer composites (LTWPCs) were made using liquefied tropical wood (LTW) as a filler and polypropylene (PP) as a matrix. ····· 1036121462
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Product customization and variety generation are widely used in new product development strategies to successfully compete in the global market by manufacturing firms. Materials play a vital role in product design. It also seeks to put forward the methods and means for optimum utilization of materials in design innovation, which proved to be very promising. A finite planet can not sustain with infinite use of goods and services. The slogan of current era is- reduce, reuse and recycle. One of the hallmarks of modern industrialized society is the rising use of materials. Not only are people consuming materials more rapidly, but also they are using an increasing diversity of materials. Indeed, it has been postulated that assuming current trends in world production and population growth, the materials requirements for the next decade and a half could equal all the materials used throughout the history up to date. This work is an approach of rationalization of use of existing material for mosquito coil to get an optimum result in terms of quality and establish techno-economy. ····· 1036121427
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Robotic Surveillance is a new area studying applications where robots deal with surveillance tasks. The objective this work is the development of a framework that gives the bases to model the necessary behaviours and functions of robotic agents for surveillance, and this can be used to implement a Robotic surveillance system. Because of the heterogeneous nature of the robotic agents that can be used and the diversity of elements in a surveillance system, the framework models the problem as discrete event systems where the necessary operations are performed by different agents. The framework includes a formal definition of Surveillance, a hierarchy of alarm events, a model of the surveillance environment using a space tessellation, a definition of sensors and surveillance agents, a model of the interactions among the agents, and formal definitions of different kinds of surveillance patrolling. It also shows the use of Petri nets as a way to model the interactions between the different agents and consequently analyze the system. The proposed framework was used to model an experimental set-up for a fire detection surveillance system and for a patrolling problem using three robots. ····· 1036121339
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is comprised of two main parts. Firstly, burst pressures in vessel components such as torispheres, shallow spherical caps and toroidal shells are evaluated by analytical, numerical and experimental approaches. Two types of failure mode are investigated, one due to excessive plastic deformation and the other due to plastic instability. Secondly, non-gradient based optimization methods including Simulated Annealing, Particle Swarm Optimization and Differential Evolution have been applied to the design of minimum weight toroidal vessels subject to internal pressure. Constraints are first yield pressure, plastic pressure, burst pressure and volume contained by toroids. Optimality includes geometry and wall thickness. The optimization process is performed by routines written in FORTRAN coupled with ABAQUS software. The book will be useful for those who work in pressure vessel industries and the field of structural optimization ····· 1036121326
für 32.31€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Solar Energy is abundantly available in this earth. With this Energy in hand, we search for many other non renewable energy readily available energy and deplete mother earth. Thus I have come up with a mission to make this solar energy made available to all people . Coming to this particular book, its a application of the solar energy in the textile industry effluents, which are to treated in this detoxification process and exposed to the environment as outlets which are less contaminated than before. This process is supplied with solar energy and said to be a solar thermal process. ····· 1036121280
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray An experimental investigation is carried out to examine the use of multi-walled carbon nanotubes (MWCNTs) in producing a new generation of fiber reinforced polymer (FRP) composites. First, the nanotubes are used to produce epoxy nanocomposites. The experiments showed significant improvements in flexure properties of the MWCNT-epoxy nanocomposites when functionalized nanotubes are used. Second, MWCNT-epoxy nanocomposites were used to fabricate woven carbon fabric composites in order to examine their static, impact, and creep behaviors. The MWCNTs improved the off-axis tension, off-axis flexure, FRP lap shear joint responses. In addition, they reduced the creep of epoxy adhesives at FRP-concrete interface, enhanced the fracture toughness, and altered the impact resistance significantly. In general, the MWCNTs are found to affect the performance of the FRP composites when matrix failure governs the behavior. The improvement in the mechanical response with the addition of low contents of MWCNTs would benefit many industrial and military applications such as strengthening structures using FRP composites, composite pipelines, aircrafts, and armored vehicles. ····· 1036121231
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In our time, the new science of robotics is increasingly important and for the ordinary people more accessible. Scientists talk about a future, where intelligent robots will control and help our life by accomplishing things, what a human being would only do with difficulties. A humanoid robot with artificial intelligence will win the olympics or a team of humanoid robots will win the world championships in football. The `Androids` are the male form of these robots and `Gynoids` are the female ones. Until recently, androids and gynoids have largely remained within the domain of science-fiction, frequently seen in film and television. These movies are usually about artificial intelligence, changing the world in unimaginable measures by destroying our world and enslave us. Of course, these stories are just creatures of the wide imagination of the human brain, and we will talk about more actual problematics of robot science. ····· 1036121215
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The condition monitoring of rolling element bearings is becoming critical with advancement of technology. The existing major monitoring methods such as Vibration Signature Analysis, Acoustic Emission Measurement, Measurement of lubricant film thickness using Ultrasound Transducer or Strain Gages, Interferometric measurement of lubricant film thickness, etc. are either expensive or applicable after some wear has been set in or cannot be used for online condition monitoring of antifriction bearings. There always exists a possibility for development of a condition monitoring method which is simple, inexpensive and reliable. Keeping this in view, a new methodology has been developed for determination of lubricant film thickness based on Hertz contact theory. The formula for lubricant film thickness requires electrical resistivity of lubricant as one of the parameter. Thus, an inexpensive experimental setup is developed for determination of electrical resistivity of liquid lubricants and the results are validated in the work. The proposed method shows variation of lubricant film thickness during operation of bearing thus can be used for Predictive Online Condition Monitoring. ····· 1036121202
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dissimilar-metal joints are used widely in various industrial applications due to both technical and economic reasons. The materials used for high temperature applications are subjected to hot corrosion and high temperature wear.The present work deals with to evaluate the behaviour of un-welded and dissimilar weldments of AISI 304 steel and 20MnMoNi55 steel made by TIG welding at temperature 900°C, samples when exposed to high temperature oxidation in air and molten 75%wt sodium sulphate + 25%wt potassium sulphate salt under cyclic condition. Compare the oxidation and hot corrosion performance of the un-welded steel with dissimilar weldments sample and evaluate its suitability for using in boiler applications. The experiments are conduct in laboratory under cyclic condition and after high temperature oxidation,hot corrosion studies were characterized by the techniques such as XRD, SEM/EDAX and X-ray mapping to know an insight corrosion mechanism based on morphology of the corroded products formed on the un-welded and dissimilar weldments sample.The result shows that corrosion resistance is in order of AISI304-DSW- 20MnMoNi55 in both air as well as in molten salt environment. ····· 1036121190
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book describes the approach of Analytical, Numerical and Experimental study of Deep Drawing process, on the basis of parameters selected from tooling industry point of view. Analytically studied parameters are: Stress, Punch force, Blank holder force and Initial Blank size. For Experimental study, two cylindrical components are drawn and parameters studied are: formability, thickness distribution, major and minor strain in cup wall. Classification of various Finite Element Analysis softwares is studied. Inverse Finite Element Analysis is done to check formability and initial guess for blank size & shape. After this by selecting different initial blanks with varying material properties & blank holder force, incremental analysis are done to obtain stress Vs displacement curve, thickness distribution, formability and Forming Limit Diagram. The comparison of results shows good agreement between Analytical, FEA and Experimental results. This book illustrates methodology which can be followed to obtain optimum values of drawing process parameters & sheet material properties before product & press tool manufacturing. ····· 1036121177
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The use of non conventional and innovative materials is ever more important in the automotive design. They allow to reduce the weight of structures with a consequent reduction in fuel consumption and carbon dioxide emission. At the same time they ensure excellent safety levels. Once excellent results in terms of active and passive safety have been obtained, the attention of car manufacturers and of the public opinion has been focused on the safety of the vulnerable road users (VRU), pedestrians and cyclists. Some examples of redesign activities with weight reduction target are illustrated. In particular the attention is focused on the redesign of bonnets with the double target of weight reduction and pedestrian safety. Hybrid metal/plastic and more usual metal sheet solutions have been compared. The static performance (stiffness and denting resistance) as well as the impact against a pedestrian head have been evaluated by means of FEM models along with actual regulations. ····· 1036121144
für 55.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Thermal barrier coatings (TBCs) have been widely used to protect the superalloy components from the hot gas stream in gas turbine engines. Driven by the higher inlet temperature of modern gas turbine engines for higher efficiency and less harmful gas emission, exploration of TBC new materials and thermal radiation effects of TBCs have recently attracted more attentions. This research explored the potential application of gadolinium zirconate as a promising new TBC material due to its lower thermal conductivity, higher phase stability, and higher CMAS-resistance than conventional YSZ material. The thermal cycling tests were performed using a novel test rig which was designed to mimic the complex working condition of TBCs, and the thermal radiation properties were characterized in the wavelength range where turbine engine thermal radiation is most concentrated. This book is suitable for both beginners and professions in the field of TBCs, as it covers both the brief introduction of TBC system, deposition methods, recent development and the in-depth analysis of failure mechanisms and different models to determine the coating absorption and scattering coefficients. ····· 1036121052
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dynamic relaxation (DR) is a widely spread numerical method used in fields as structural dynamics (particularly in form-finding), geomechanics or biomechanics, among others. When using DR in numerical simulations, researchers usually follow two different paths in the choice of a damping strategy for the oscillations: some use a viscous damping while others use a kinetic damping. However, it is difficult to find comparisons between both methods to help deciding whether one is better than the other for a particular application. Focused in the field of form-finding of thin-walled structures, the main objective of this book is to make a contribution to the development of DR methods and a review of some of the existing DR methods in order to compare them. Also, as an application for the studied methods, a contribution to the modelling of inflatable lifejackets will be presented: the aim of this part of the work is to present some contributions to the creation of a numerical tool permitting to test the functioning of commercial inflatable lifejackets by means of Finite Elements calculations. ····· 1036120955
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work describes the effect of laser cut parameters on polymers during laser micromachining. Laser cut parameters influence the accuracy and quality of cut. A comprehensive methodology of modelling and analysis of the cut parameters is outlined. The effect of varying cut parameters on the bulge formation is also analyzed. With the gained knowledge, the reader can achieve the best possible laser cut parameters to ensure optimum cut. ····· 1036120821
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Coatings and thin films are capable of providing considerable savings over the use of bulk materials and have been the subject of extensive research effort over the last few decades. In an attempt to understand and utilise the mechanisms governing their deformation and failure, and controlling their in-service performance, this study describes the development of modelling tools capable of assessing whether a coating is likely to have the desired characteristics, in order to enhance performance, extend the component s life, or to reduce cost or conversely, to predict a more appropriate coating. This work describes the progress made using indentation techniques in combination with energy based work-of-indentation modelling. The approach covers all of the coated systems properties and combinations encountered in surface engineering practice, and is capable of dealing with fracture and plasticity dominated response, and also covers a mixed response often found in many engineering coatings. Work-of-indentation approach was applied to a wide range of systems, including sputtered metallic layers, electrolytically deposited and electroless coatings, and industrial hard ceramic films. ····· 1036120754
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book presents the development of two types of intelligent pneumatic actuators (IPA) for physical human-machine interaction applications. The previously developed small type intelligent actuator was enhanced and proposed for Active Links Pillow (ALP) application while the development of a new high force intelligent pneumatic actuator was proposed for a chair tool namely Pneumatic Actuated Seating System (PASS). The developed new actuator consists of five extensive elements in a single device combining software and hardware architectural design. The actuator can performed spring and damping characteristics controlled from embedded system. Several control algorithms of position, force, compliance and viscosity were carried out for the actuator experimental evaluation. The application of PASS, a new chair type physical human and machine interaction seating system powered by thirty six developed intelligent pneumatic actuators is focused in this book. ····· 1036120675
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The objective of our study is to look for various mechanisms of tool life in order to understand it and subsequently use them to find out the various parameters of tool wear in rock cutting. This will lead to the development of an understanding of the tool wear parameters which one can control in order to increase the tool life as per the convenience in machining. On the basis of the knowledge-base one has to try to maintain the tool life in order to favorably increase the material removal rate. This book also dealt with the experimental study of dry drilling in basalt and related tool wear. It is found that flank wear, VB, and cutting edge radius, CER, wear rates increase with rock strength, VB-wear rates and CER-wear rates exhibit opposite trends in their dependence on the remainder of the cutting parameters. ····· 1036120520
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The spray droplets were deposited over a rotating copper substrate to achieve a disc shape preform. The thickness uniformity of the preform was found to depend on the preform distance from the nozzle, preform offset distance from the axis of the atomizer and inclination of the preform from the horizontal plane. Mathematical equations were developed to represent the thickness variation of the preform with aforementioned parameters. The porosity, hardness, strength, wear and microstructural studies of the Al-Si-Pb spray deposited alloys were conducted for different lead content, top to bottom distance of the deposit and the distance from centre to periphery of the deposit. Overspray and worn debris particles were also analyzed. Particles/droplets of two different types were observed to deposit on the substrate. First type particles were aluminum rich and second type were lead rich. ····· 1036120502· 1 · ::::: · 74 ·· 75 ·· 76 ·· 77 ·· 78 ·· 79 ·· 80 · ::::: · 83 ·
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