····· lezzter Preis 49.95€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der internationale Bestseller zur Klassischen Mechanik in deutscher Ausgabe! Bei Studenten wird das Lehrbuch weltweit wegen seines klaren, präzisen und leicht zugänglichen Zugangs zur Mechanik geschätzt. ····· 10361185153
····· lezzter Preis 52.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The methods of time-efficient simulation of surface-excited wave propagation in plate-like multilayered composites are presented. The mathematical model of wave propagation in laminated plate based on the elasticity theory is transformed and then solved in wavenumber-frequency domain. The numerical methods for computation of inverse transform in time-space domain are developed and used for analysis of wave and energy propagation phenomena occurring in composite plates due to surface excitation. ····· 10361164610
····· lezzter Preis 52.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Die vorliegende Arbeit beschreibt Rillenkugellager und Zylinderrollenlager als generische Maschinenelemente zur effizienten Simulation von Maschinen. Das Simulationsmodell wird in Form einer benutzerdefinierten Fortran-Routine für MSC.ADAMS implementiert. Darin werden die räumliche Bewegung der Wälzkörper, die Normalkräfte durch Steifigkeit und Dämpfung sowie Reibungsverluste abgebildet. Das Modell wurde durch Experimente im gewünschten Betriebsbereich validiert. ····· 10361164433
····· lezzter Preis 46.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Hermann von Helmholtz (1821 1894) war einer der vielseitigsten Naturwissenschaftler seiner Zeit. Auf dem Gebiet der Medizin gelangen ihm vor allem zwei Entdeckungen: die Messung der Geschwindigkeit, mit der sich Erregungsvorgänge in motorischen Nerven fortpflanzen und die Erfindung des Augenspiegels (Ophthalmoskop). Helmholtz war ein ebenso berühmter Physiker - 1871 ging er als Professor für Physik nach Berlin, 1888 wurde er der erste Präsident der neugegründeten Physikalisch-Technischen Reichsanstalt in Charlottenburg. Dem von Robert Mayer erkannten Gesetz von der Erhaltung und Umwandlung der Energie gab Helmholtz eine mathematische Begründung und wandte es bei der Untersuchung thermochemischer und elektrochemischer Vorgänge auch auf die Thermodynamik an. Er berechnete die Wirbelbewegung von Flüssigkeiten und förderte durch seinen Schüler Heinrich Hertz die Durchsetzung der Faraday-Maxwellschen Anschauungen. ····· 10361159269
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray On a typical vehicle, pumps are one of the noise sources creating discomfort for the vehicle passengers. The alternating forces from the pump and flow ripple create noise which travels through fluid lines or structure and gets amplified. In this book, radial piston type pump has been used to evaluate noise transmission. The use of the pump is mainly for Land Rover vehicles in the application of ACE (Active Cornering Enhancement). Using Finite Element Method (FEM) and software LMS Virtual.Lab, a 3D model of the pump housing structure was developed to simulate the dynamic structural characteristics of the pump. This book takes you through a detailed process of modal analysis and tuning the 3D model to correlate to the measured eigenmodes and frequency response due to a force input in the pump. ····· 10361147043
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ultrasound Doppler Velocimetry (UDV) is a promising non-invasive technique in applications of both practical and scientific flow measurements. Generally UDV measurements of steady-state and laminar flows are encountered in the literature. Capacity of the technique in the measurement of complex flows must be examined. This will allow us to adapt UDV for the monitoring of complex flows and fluids. Therefore interactions of some complex flow mediums with UDV signals are investigated mathematically and experimentally in this book. Oscillating, turbulent/random velocity and linear viscoelastic flows are considered accordingly. Analysis of oscillating flows revealed the limitations of this technique for the measurement of such flows. UDV signals were utilized to obtain statistical properties of random velocity functions/pipe turbulence. Linear viscoelastic fluids and determination of their properties (complex viscosity, relaxation spectrum) by UDV measurements are considered theoretically in the last part of the book. Basics of UDV, digital signal processing, random processes, turbulent and viscoelastic flows are included in the manuscript to assist the reader. ····· 10361146880
für 25.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Carl Friedrich Gauss (1777-1855), Mathematiker, Astronom, Geodät und Physiker, gilt bis heute als eine der großen Persönlichkeiten der Wissenschaft. Zahlreiche mathematische Erkenntnisse gehen auf ihn zurück.Mit Allgemeine Grundlagen einer Theorie der Gestalt von Flüssigkeiten im Zustand des Gleichgewichts liegt hier nun ein Werk aus Gauss physikalischem Forschungsbereich neu vor. Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1903. ····· 10361139311
für 37.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Theodor Schwartzes Werk ist ein spannender Beitrag zur Geschichte von Telefon, Mikrofon und Radiofon. Schwartze zeigt die Kausalverknüpfung von Schallschwingungen, molekularen Vibrationen und elektrischen Strömen auf und erläutert hieran Entstehung, Entwicklung und Aufbau der drei Objekte.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1883. ····· 10361139287
für 34.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Berend Wilhelm Feddersen (1832 1918) war ein deutscher Physiker. Bei seinen hier vorliegenden Experimenten zur Entladung mit der Leidener Flasche konnte er aufzeigen, dass in einem aus Spule, Kondensator und Widerstand bestehenden Stromkreis elektrische Schwingungen entstehen. Heute fast in Vergessenheit geraten, gelten die Erkenntnisse, die Feddersen aus den Experimenten mit der Leidener Flasche gewann, noch heute als Grundstein für die Arbeiten von Marconi, dem Pionier der drahtlosen Telekommunikation.Sorgfältig bearbeiteter Nachdruck der Originalausgabe von 1908. ····· 10361139153
für 35.90€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Der Luftfahrtingenieur Friedrich Ahlborn untersucht in seinem Werk den Vogelflug unter physikalischen Gesichtspunkten. Er gliedert seine Untersuchung in zwei Teile und betrachtet sowohl den Ruderflug als auch den Flug ohne Flügelschlag. Dabei erläutert er detailliert die anatomischen und physikalischen Charakteristika der unterschiedlichen Flugbewegungen und ihre Anwendungsmöglichkeiten in der Aviatik. Nachdruck der Originalausgabe aus dem Jahr 1895. ····· 10361138356
für 62.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Esta obra muestra un estudio sobre la teoría de la oceanografía acústica, como punto inicial para comprender la propagación del sonido y los mecanismos que afectan su viaje a través de agua salada. Ya que la información acústica se propaga en un medio tan complicado como lo es el océano, es necesario comprender los parámetros que afectan la velocidad de propagación la cual varía en función de la salinidad, temperatura y densidad propias del océano en cuestión. Una vez comprendido lo anterior, se muestran diversos métodos para modelar el canal sonoro, siendo fundamental y eficiente el método de modos normales para el análisis de la transmisión de sonido debido a fuentes ubicadas en aire, para la aplicación de comunicaciones en océanos estratificados. El cálculo de la pérdida de transmisión es realizada para la característica de modelo Pekeris consistente de una guía de onda que simula la capa de agua sobre un fondo. Los resultados numéricos obtenidos, muestran el comportamiento del campo acústico en función de la distancia entre transmisor y receptor.Por otro lado también se considera el análisis del campo acústico producido por fuentes en movimiento, mediante métodos asintóticos. ····· 10361137771
für 35.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En este trabajo por primera vez en el IFUAP se sientan las bases experimentales de dicho estudio abordando el problema en el régimen de frecuencias de MHz. Se determinaron algunas características del SP que podían influir en la propagación de ondas acústicas: porosidad, espesor y tamaño de poro. Estos datos también permiten determinar el volumen de las monocapas y la densidad de masa que se compara con dos modelos para SP, siendo el de Hideyuki Unno consistente con este trabajo. Tambien se desarrollo una metodología muy completa para separar las monocapas de SP de su sustrato de silicio para evitar su influencia como interfase. Para la propagación de ondas acústicas, se obtuvieron los espectros de transmitancia de las mismas en función de la frecuencia mediante la aplicación de la Transformada Rápida de Fourier (FFT) de los datos obtenidos experimentalmente en el régimen de tiempo. ····· 10361136986
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is about the relationship between structure size and crack propagation during mechanical loadings. It is commonly accepted that there is a size effect on the nominal resistance of quasi-brittle materials such as concrete. This effect must be taken into account when designing the ultimate behaviour of concrete structures in order to avoid excessive damage and crack openings. Presented here is an experimental method to determine crack openings using the digital image correlation technique, which is a robust and highly precise tool for measuring fracture such as crack opening and crack length. Many numerical models can be used to describe crack or damage growth in concrete. This book describes the use of non-local continuum damage mechanics to reproduce cracks and size effect. An isotropic non-local strain softening damage constitutive law is used where numerical global and local results are correlated with the experimental data and conclusions are drawn on the advantages and limitations of using the adopted modelling strategy to reproduce size effect in concrete structures. ····· 10361136038
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book includes elastic and plastic buckling of spherical shells under various kinds of loading conditions. The first part of the book presents the analytical, numerical, and experimental results of moderately thick and thin hemispherical metal shells into the plastic buckling range illustrating the importance of geometry changes on the buckling load. In the second part of the book, the Southwell s nondestructive method for columns is analytically extended to spherical shells subjected to uniform external pressure acting radially. Subsequently by finite element simulation and experimental work shown that the theory is applicable to spherical shells with an arbitrary axi-symmetrical loading too. ····· 10361134267
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is based on the experimental study of the rotating-disk boundary-layer flow. In the case of the natural flow, different flow regimes are identified as a function of nondimensional distance, R, from the disk axis. Mean-velocity profiles initially follow the von Kármán solution. At higher R, departures arise and increase with R, which are due to the spatial growth of boundary-layer instability modes, whose radial growth rates are found to match linear-theory predictions. The profiles in the fully turbulent region follow the turbulent log law and the velocity spectra exhibit Kolmogorov-type power laws. To study the response to forcing, a setup has been designed which allows the excitation of stationary (in the lab frame) disturbances or disturbances which rotate with a frequency independently of the disk frequency. The flow response to both types of forcing and two forcing element geometries was studied. Stationary forcing produces a wake which decays with distance from the element, in agreement with theory. Forcing due to rotating elements can generate growing wavepacket-like disturbances, which although nonlinear, follow trajectories close to linear-theory predictions. ····· 10361133589
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Acoustic Condition monitoring (CM) have many advantages comparing to other traditional CM methods (using vibration, speed measurement, temperature monitoring, .etc) It is reliable, cost effective and providing remote and contact less measurement. However, since acoustic signals have to propagate through the working environment before received by sensors,the performance of acoustic CM systems can be seriously influenced by environment factors,especially when they are working in industrial environment which normally has very strong background noise and reverberation. In this book, a number of newly developed technologies were introduced to reduce this influence. A small scale acoustic array based condition monitoring system were also introduced as an example using these technologies to monitor machines` working conditions and diagnose their potential faults in practical industrial environment. ····· 10361133117
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Corrugated panels are currently used in petrochemical facilities as an economic means to provide blast protection to personnel and other valuable assets. In this book, parametric studies were conducted on the various elements (e.g., compression flange, depth, angle of corrugation, etc.) of a corrugated blast wall using static nonlinear finite element analyses and dynamic nonlinear single degree of freedom analyses. During the static analyses, panel characteristics such as ductility and strength were explored and nonlinear load-deflection curves were generated. The load-deflection curves were then used to observe the response of each wall using a single degree of freedom time-step integration method. Results showed that some blast wall profiles have a greater ability to limit reaction loads transferred to the primary structure, reduce material cost/ panel thickness, and/or protect nearby assets. Understanding how the different elements of a corrugated blast wall affect its structural response to a blast enables the engineer to design efficient passive protection systems that dissipate blast energy efficiently. ····· 10361132800
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In engineering practice many constructions, buildings, or their parts contain stress concentrators such as cracks (cuts, slits), inclusions, patches, holes and angle points because of the conditions of production. During the exploitation of different constructions and their details, some of these concentrators can appear. Therefore, the analysis of stress state of massive bodies, containing the stress concentrators, and local stress fields, originated next to the concentrators, is the actual problem from the scientific and engineering points of view. In the present monograph, the problems of simultaneous interaction of different types of the stress concentrators with the massive deformable bodies are investigated. Many new contact and mixed problems are researched, the closed solutions are defined and the behavior of interaction of different concentrators is revealed. The solutions of non-standard mixed boundary value problems for plane and half-plane are obtained by the method of discrete singularities and orthogonal polynomials. ····· 10361132624
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A complete analysis of the structure-borne noise transmission paths of an automotive suspension assembly is presented. First, a fully-instrumented test bench consisting of a wheel/suspension/lower suspension A-arm assembly was de- signed in order to identify the vibro-acoustic transmission paths (up to 250 Hz) for white noise excitation of the wheel. Second, an analysis of the vibro-acoustics of the suspension is presented an overview of the Frequency Response Functions (FRF) is introduced and their respective modal behaviors are described. Frequency response function measurements between the excitation signal and each suspen- sion/chassis linkages are used to characterize the di®erent transmission paths that transmit energy through the chassis of the car. Finally, a synthesis of the major modal contributions of the suspension is drawn, with the objective of indicating which suspension transfer paths contribute the most to the structural forces trans- mitted to the chassis. Modal transmissibility factors (MTF) were calculated to pro- vide an overall classi¯cation of the modes to the vibration transmission through the individual suspension linkages and the orthogonal directions. ····· 10361119539
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book aims at providing an overview of the phenomena of friction in mechanical design. Starting from a research history on this topic, which was crucial since the ancient Egyptians, we pass through the presentation of the first theories proposed by Leonardo da Vinci to reach, the admirable work of Coulomb, the description of some recent mechanical applications in which the precise and accurate knowledge of the coefficients of friction is essential for their correct use and design. Based on the presented investigations some valid methods are proposed in order to measure accurately the coefficients of friction to be used in modern applications such as, for example, the threaded connections and the press-fitted joints mainly applied to front motorbike suspension. ····· 10361119479
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The objectives and scope of the investigation has been mentioned. It is stated that the main objective of present study is to investigate the EL of ROPPV films.ROPPV is semiconducting conjugated polymer semiconducting conjugated polymer.The study has been made by intersect that following point: (I) Preparation of thin film and thickness measurement(II)Absorption study of ROPPV polymer,(III) Photo lumenescence studies of 2-5-dialoxy -poly-P-vinelene(ROPPV) Films,(IV)Preparation of EL cells(V) Theoretical studies of EL in thin films. Several intense EL materials have been prepared, Whose EL emission can be seen in the ultraviolet region. An attempt has been to correlated results obtained from the EL & PL studies of ROPPV polymer films. The thickness dependance optical property of ROPPV films is summarized. The theoretical approach is made to the solids comparison made between the theoretical and experimental results The conclusions drawn from the present investigation are summarized and the perspectives for the future research on ROPPV thin films have been given. ····· 10361119354· 1 ·· 2 ·· 3 ·· 4 ·· 5 ·
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