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result(s) for
"Prototypage rapide."
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Measuring and reducing of harmonic pollution using rapid prototyping
by
REGUIG, Abdeljalil
,
BENDAOUD, Abdelber
,
SLIMANI, Helima
in
Analog to digital conversion
,
Computer simulation
,
D C motors
2017
Ce travail vise à étudier la pollution harmonique. Il fournit une analyse effectuée à l'aide d'un modèle de simulation contenant un redresseur (en tant que charge de pollution) pour alimenter un moteur à courant continu à partir d'une source de tension triphasée. À cette fin, une méthode de simulation matérielle dans la boucle a été développée sous l’environnement Simulink/Matlab. La validation des résultats de la simulation a été réalisée au moyen d’une réalisation expérimentale du même modèle simulé, pour lequel un instrument Fluke 435 II a été utilisé pour mesurer le taux de distorsion harmonique totale (THD) avec un oscilloscope pour visualiser les courbes. Le processus de filtrage a été effectué dans l’environnement Simulink/Matlab. La partie simulée est connectée à la partie réalisée via une carte DSPACE DS1104, dans le but de convertir le signal analogique entrant en un signal numérique à traiter sous Simulink/Matlab, puis de le reconvertir en un signal analogique afin de le visualiser dans l’oscilloscope.L’efficacité des filtres passifs dans la réduction des effets des harmoniques a été bien reconnue dans le cadre de cette étude. Outre les avantages liés à l’utilisation du prototypage rapide et de la simulation matériel dans la boucle, cette solution contribue également à réduire le temps et les coûts. Les résultats de cette étude pourraient être utilisés pour améliorer la qualité de l'énergie en maintenant la forme sinusoïdale du signal de la tension d'alimentation pour une bonne transmission de la puissance utile à l'équipement terminal.TITRE Mesurer et réduire la pollution harmonique en utilisant le prototypage rapide TITLE Measuring and reducing of harmonic pollution using rapid prototyping RÉSUMÉCe travail vise à étudier la pollution harmonique. Il fournit une analyse effectuée à l'aide d'un modèle de simulation contenant un redresseur (en tant que charge de pollution) pour alimenter un moteur à courant continu à partir d'une source de tension triphasée. À cette fin, une méthode de simulation matérielle dans la boucle a été développée sous l’environnement Simulink/Matlab. La validation des résultats de la simulation a été réalisée au moyen d’une réalisation expérimentale du même modèle simulé, pour lequel un instrument Fluke 435 II a été utilisé pour mesurer le taux de distorsion harmonique totale (THD) avec un oscilloscope pour visualiser les courbes. Le processus de filtrage a été effectué dans l’environnement Simulink/Matlab. La partie simulée est connectée à la partie réalisée via une carte DSPACE DS1104, dans le but de convertir le signal analogique entrant en un signal numérique à traiter sous Simulink/Matlab, puis de le reconvertir en un signal analogique afin de le visualiser dans l’oscilloscope.L’efficacité des filtres passifs dans la réduction des effets des harmoniques a été bien reconnue dans le cadre de cette étude. Outre les avantages liés à l’utilisation du prototypage rapide et de la simulation matériel dans la boucle, cette solution contribue également à réduire le temps et les coûts. Les résultats de cette étude pourraient être utilisés pour améliorer la qualité de l'énergie en maintenant la forme sinusoïdale du signal de la tension d'alimentation pour une bonne transmission de la puissance utile à l'équipement terminal.
Journal Article
Rapid Prototyping Software for Avionics Systems
2014
The design, implementation and validation of avionics and aeronautical systems have become extremely complex tasks due to the increase of functionalities that are deployed in current avionics systems and the need to be able certify them before putting them into production. This book proposes a methodology to enable the rapid prototyping of such a system by considering from the start the certification aspects of the solution produced. This method takes advantage of the model-based design approaches as well as the use of formal methods for the validation of these systems. Furthermore, the use
Learning Axure RP interactive prototypes
by
Krahenbuhl, John Henry
in
Computer simulation
,
Rapid prototyping
,
User interfaces (Computer systems)--Design
2015
This book provides you with a rapid introduction to interactive prototyping. It starts with explaining the basics of Axure RP and quickly familiarizes you with pages, panes, and widgets. It then walks you through designing increasingly compelling experiences by enabling basic, intermediate, and advanced interactions with your own interactive prototype. You will also learn how to generate common interactions for a typical home page that includes a global header and footer as well as an interactive carousel. You'll also incorporate social media feeds from Facebook and Twitter. You'll enhance your functional prototype with user account creation and login validation; simulate a Content Management System driving catalog, category, and search results pages; and finally learn to fashion a dynamic shopping cart with a progress indicator and checkout interactions.
Assessment to Enhance Air Force and Department of Defense Prototyping for the New Defense Strategy
by
Council, National Research
,
Sciences, Division on Engineering and Physical
,
Board, Air Force Studies
in
Congresses
,
Military research
,
Prototypes, Engineering
2013,2014
Assessment to Enhance Air Force and Department of Defense Prototyping for the New Defense Strategy is the summary of a workshop convened by the Air Force Studies Board of the National Academies' National Research Council in September 2013 to enhance Air Force and Department of Defense (DoD) prototyping for the new defense strategy. This workshop examined of a wide range of prototyping issues, including individual recommendations for a renewed prototype program, application of prototyping as a tool for technology/system development and sustainment (including annual funding), and positive and negative effects of a renewed program.
Prototyping has historically been of great benefit to the Air Force and DoD in terms of risk reduction and concept demonstration prior to system development, advancing new technologies, workforce enhancement and skills continuity between major acquisitions, dissuasion of adversaries by demonstrating capabilities, maintaining technological surprise through classified technologies, and an overarching strategy of overall risk reduction during austere budget environments. Over the last two decades, however, many issues with prototyping have arisen. For example, the definitions and terminology associated with prototyping have been convoluted and budgets for prototyping have been used as offsets to remedy budget shortfalls. Additionally, prototyping has been done with no strategic intent or context, and both government and industry have misused prototyping as a key tool in the DoD and defense industrial base. Assessment to Enhance Air Force and Department of Defense Prototyping for the New Defense Strategy envisions a prototyping program that encourages innovation in new concepts and approaches and provides a means to assess and reduce risk before commitment to major new programs.
CAD and rapid prototyping for product design
Computer-aided design (CAD) and rapid prototyping (RP) are now a fundamental part of the professional practice of product design and are therefore essential skills for product design undergraduate students. This book provides students with all the tools needed to get to grips with the range of both CAD software and RP processes used in the industry. Presented in a visually engaging format, this book is packed with case study examples from contemporary product designers, as well as screen shots, CAD models, and images of rapid prototypes highlighting the design process. This book shows how CAD and RP software is used in product design and explains, in clear language, the similarities and differences between the different software packages and processes.
Rapid system prototyping with FPGAs
by
Harding, Benjamin F.
,
Cofer, R. C.
in
Computer aided design
,
Digital electronics
,
Digital electronics -- Computer aided design
2006,2011
The push to move products to market as quickly and cheaply as possible is fiercer than ever, and accordingly, engineers are always looking for new ways to provide their companies with the edge over the competition. Field-Programmable Gate Arrays (FPGAs), which are faster, denser, and more cost-effective than traditional programmable logic devices (PLDs), are quickly becoming one of the most widespread tools that embedded engineers can utilize in order to gain that needed edge. FPGAs are especially popular for prototyping designs, due to their superior speed and efficiency.This book hones in on that rapid prototyping aspect of FPGA use, showing designers exactly how they can cut time off production cycles and save their companies money drained by costly mistakes, via prototyping designs with FPGAs first. Reading it will take a designer with a basic knowledge of implementing FPGAs to the “next-level of FPGA use because unlike broad beginner books on FPGAs, this book presents the required design skills in a focused, practical, example-oriented manner.In-the-trenches expert authors assure the most applicable advice to practicing engineersDual focus on successfully making critical decisions and avoiding common pitfalls appeals to engineers pressured for speed and perfectionHardware and software are both covered, in order to address the growing trend toward \"cross-pollination\" of engineering expertise