Modelling Simulation and Optimization
Date: 26 April 2011, 00:10
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From the preface: Computer-Aided Design and system analysis aims to fnd mathematical models that allow emulating the behaviour of components and facilities. The high competitiveness in industry, the little time available for product development and the high cost in terms of time and money of producing the initial prototypes means that the computer-aided design and analysis of products is taking on major importance. On the other hand, in most areas of engineering the components of a system are interconnected and belong to the different domains of physics (mechanics, electrics, hydraulics, thermal...). When developing a complete multidisciplinary system, it needs to integrate a design procedure to ensure that it will be successfully achieved. Engineering systems require an analysis of their dynamic behaviour (evolution over time or the path of their different variables). This is especially important in automotive products, railway dynamics, machine tools, robotics and aeronautics. Modelling a complete system with particular attention to detail in the specifc component intended for analysis enables concepts relative to the component to be analysed as well as their infuence on the rest of the system . The purpose of modelling and simulating dynamic systems is to generate a set of algebraic and differential equations or a mathematical model. This always leads to a description of the represented system that is never ambiguous. In order to perform rapid product optimisation iterations, the models must be formulated and evaluated in the most effcient way. Automated environments contribute to this. Freeing engineers of the tedious task of producing equations is vital. In addition, this automation prevents the inevitable human error and leads to a rapid evaluation of the different alternatives of a particular component. One of the pioneers of simulation technology in medicine defnes “Simulation” as a technique, not a technology, that replaces real experiences with guided experiences reproducing important aspects of the real world in a fully interactive fashion [iii]. In the following chapters the reader will be introduced to the world of simulation in topics of current interest such as medicine, military purposes and their use in industry for diverse applications that range from the use of networks to combining thermal, chemical or electrical aspects, among others…
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