Aplicação do software Autodesk™ inventor na elaboração do projeto de um redutor de velocidades

Through a current and practical approach, this work aims to demonstrate how a speed reducer would behave in a real situation, but using a digital environment. Therefore, first, it was made the modeling of each component of the reducer, driven by gears. Completed the modeling of the components, it was possible to realize the connection between them and thus characterize the work as a speed reducer; and using properly sized and shaped reducer, we could finally demonstrate the operation of the same, the very Autodesk Inventor ™ 2014 environment

Avaliação do software Autodesk Revit 2016 para quantificação por meio da modelagem da informação da construção

The building budgeting quickly and accurately is a challenge faced by the companies in the sector. The cost estimation process is performed from the quantity takeoff and this process of quantification, historically, through the analysis of the project, scope of work and project information contained in 2D design, text files and spreadsheets. This method, in many cases, present itself flawed, influencing the making management decisions, once it is closely coupled to time and cost management. In this scenario, this work intends to make a critical analysis of conventional process of quantity takeoff, from the quantification through 2D designs, and with the use of the software Autodesk Revit 2016, which uses the concepts of building information modeling for automated quantity takeoff of 3D model construction. It is noted that the 3D modeling process should be aligned with the goals of budgeting. The use of BIM technology programs provides several benefits compared to traditional quantity takeoff process, representing gains in productivity, transparency and assertiveness

Desenvolvimento de software para avaliação dos desempenhos hidráulico e econômico de pivôs centrais

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

A construção social do mercado colaborativo de software livre durante o Governo Lula: agentes, estratégias e discursos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Using Source-Code Analysis to Help End-user Programmers Create Dependable Software

Not long ago, most software was written by professional programmers, who could be presumed to have an interest in software engineering methodologies and in tools and techniques for improving software dependability. Today, however, a great deal of software is written not by professionals but by end-users, who create applications such as multimedia simulations, dynamic web pages, and spreadsheets. Applications such as these are often used to guide important decisions or aid in important tasks, and it is important that they be sufficiently dependable, but evidence shows that they frequently are not. For example, studies have shown that a large percentage of the spreadsheets created by end-users contain faults. Despite such evidence, until recently, relatively little research had been done to help end-users create more dependable software. We have been working to address this problem by finding ways to provide at least some of the benefits of formal software engineering techniques to end-user programmers. In this talk, focusing on the spreadsheet application paradigm, I present several of our approaches, focusing on methodologies that utilize source-code-analysis techniques to help end-users build more dependable spreadsheets. Behind the scenes, our methodologies use static analyses such as dataflow analysis and slicing, together with dynamic analyses such as execution monitoring, to support user tasks such as validation and fault localization. I show how, to accommodate the user base of spreadsheet languages, an interface to these methodologies can be provided in a manner that does not require an understanding of the theory behind the analyses, yet supports the interactive, incremental process by which spreadsheets are created. Finally, I present empirical results gathered in the use of our methodologies that highlight several costs and benefits trade-offs, and many opportunities for future work.

Aplicação do software Autodesk™ inventor na elaboração do projeto de um redutor de velocidades

Through a current and practical approach, this work aims to demonstrate how a speed reducer would behave in a real situation, but using a digital environment. Therefore, first, it was made the modeling of each component of the reducer, driven by gears. Completed the modeling of the components, it was possible to realize the connection between them and thus characterize the work as a speed reducer; and using properly sized and shaped reducer, we could finally demonstrate the operation of the same, the very Autodesk Inventor ™ 2014 environment

Avaliação do software Autodesk Revit 2016 para quantificação por meio da modelagem da informação da construção

The building budgeting quickly and accurately is a challenge faced by the companies in the sector. The cost estimation process is performed from the quantity takeoff and this process of quantification, historically, through the analysis of the project, scope of work and project information contained in 2D design, text files and spreadsheets. This method, in many cases, present itself flawed, influencing the making management decisions, once it is closely coupled to time and cost management. In this scenario, this work intends to make a critical analysis of conventional process of quantity takeoff, from the quantification through 2D designs, and with the use of the software Autodesk Revit 2016, which uses the concepts of building information modeling for automated quantity takeoff of 3D model construction. It is noted that the 3D modeling process should be aligned with the goals of budgeting. The use of BIM technology programs provides several benefits compared to traditional quantity takeoff process, representing gains in productivity, transparency and assertiveness

Desenvolvimento de software para avaliação dos desempenhos hidráulico e econômico de pivôs centrais

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

A construção social do mercado colaborativo de software livre durante o Governo Lula: agentes, estratégias e discursos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Desarrollo de un software para la gestión de cadenas de tiendas de ropa

[ES] Por software empresarial se entiende, generalmente, cualquier tipo de software que está orientado a ayudar a una empresa a mejorar su productividad o a medirla. El término engloba una amplia variedad de aplicaciones informáticas que incluyen desde programas de contabilidad, inventariado, TPV y de ofimática (software de gestión), hasta sistemas de planificación de recursos empresariales (ERP). Cada empresa tiene una forma de trabajar única y no hay dos iguales, aunque se dediquen al mismo sector de actividad. Las empresas requieren una solución de gestión de negocio adaptable a su modo de trabajar, sin embargo los tipos de software existente en el mercado suelen ofrecer soluciones genéricas, que no abarcan todas las necesidades reales de una empresa de manera sencilla e intuitiva, y por tanto, obligan a la empresa a adaptarse al software, rompiendo de este modo su lógica de negocio, y dificultando así el proceso de implantación. Es por ello, por lo que en este Trabajo Fin de Grado se ha desarrollado un software de gestión a medida para la empresa Galerías Lorens. El objetivo del mismo es cubrir todas las necesidades de la empresa de una manera sencilla e intuitiva. La arquitectura de dicho software seguirá una arquitectura cliente-servidor de manera que se podrá ejecutar de forma remota (con una base de datos centralizada que compartan todas las tiendas y el almacén). El objetivo principal de este proyecto es desarrollar un software de gestión que atienda las necesidades básicas de este tipo de negocios. En particular, este software estará compuesto por tres módulos: El módulo de administración: con el objetivo de gestionar los pedidos que se realicen. El módulo de almacenaje: gestionará la entrada de mercancía y la distribución de la misma en el resto de tiendas. El módulo del terminal punto de venta (TPV): gestionará las necesidades de las tiendas (venta de mercancía, devoluciones, gestión de cajas, etc.).

InvenCenty: software para la enseñanza del diseño aerodinámico de una familia de ventiladores centrífugos de alta eficiencia

[ES]El método de diseño aerodinámico de ventiladores centrífugos, utilizando la velocidad específica de rotación y las ecuaciones de las curvas características de una familia de ventiladores centrífugos de alabes rectos atrasados, permite implementar un programa informático donde la interface de usuario admite ingresar valores de caudal y presión total, para determinar la potencia del ventilador, velocidad del rotor, eficiencia y los parámetros geométricos, diseñándolo como una turbomáquina hidráulica. Las curvas de rendimiento que se emplearon fueron obtenidas de ensayos en laboratorios rusos, por analistas especializados, que muestran principalmente las relaciones existentes entre el caudal y la velocidad específica, presión total, potencia y eficiencia. Se seleccionó un ventilador centrífugo de doce alabes rectos atrasados, por su mayor porcentaje de eficiencia y construcción económica pudiendo este ser replicado a otras escalas mediante la ley de semejanza geométrica. El algoritmo matemático puede ser utilizado para el diseño de otras familias de ventiladores centrífugos.

Sviluppo di modelli motore e veicolo per l'analisi di strategie di controllo in applicazioni Software e Hardware In the Loop

This work describes the development of a simulation tool which allows the simulation of the Internal Combustion Engine (ICE), the transmission and the vehicle dynamics. It is a control oriented simulation tool, designed in order to perform both off-line (Software In the Loop) and on-line (Hardware In the Loop) simulation. In the first case the simulation tool can be used in order to optimize Engine Control Unit strategies (as far as regard, for example, the fuel consumption or the performance of the engine), while in the second case it can be used in order to test the control system. In recent years the use of HIL simulations has proved to be very useful in developing and testing of control systems. Hardware In the Loop simulation is a technology where the actual vehicles, engines or other components are replaced by a real time simulation, based on a mathematical model and running in a real time processor. The processor reads ECU (Engine Control Unit) output signals which would normally feed the actuators and, by using mathematical models, provides the signals which would be produced by the actual sensors. The simulation tool, fully designed within Simulink, includes the possibility to simulate the only engine, the transmission and vehicle dynamics and the engine along with the vehicle and transmission dynamics, allowing in this case to evaluate the performance and the operating conditions of the Internal Combustion Engine, once it is installed on a given vehicle. Furthermore the simulation tool includes different level of complexity, since it is possible to use, for example, either a zero-dimensional or a one-dimensional model of the intake system (in this case only for off-line application, because of the higher computational effort). Given these preliminary remarks, an important goal of this work is the development of a simulation environment that can be easily adapted to different engine types (single- or multi-cylinder, four-stroke or two-stroke, diesel or gasoline) and transmission architecture without reprogramming. Also, the same simulation tool can be rapidly configured both for off-line and real-time application. The Matlab-Simulink environment has been adopted to achieve such objectives, since its graphical programming interface allows building flexible and reconfigurable models, and real-time simulation is possible with standard, off-the-shelf software and hardware platforms (such as dSPACE systems).

CFD modeling of two-phase boiling flows in the slug flow regime with an interface capturing technique

The objective of this thesis was to improve the commercial CFD software Ansys Fluent to obtain a tool able to perform accurate simulations of flow boiling in the slug flow regime. The achievement of a reliable numerical framework allows a better understanding of the bubble and flow dynamics induced by the evaporation and makes possible the prediction of the wall heat transfer trends. In order to save computational time, the flow is modeled with an axisymmetrical formulation. Vapor and liquid phases are treated as incompressible and in laminar flow. By means of a single fluid approach, the flow equations are written as for a single phase flow, but discontinuities at the interface and interfacial effects need to be accounted for and discretized properly. Ansys Fluent provides a Volume Of Fluid technique to advect the interface and to map the discontinuous fluid properties throughout the flow domain. The interfacial effects are dominant in the boiling slug flow and the accuracy of their estimation is fundamental for the reliability of the solver. Self-implemented functions, developed ad-hoc, are introduced within the numerical code to compute the surface tension force and the rates of mass and energy exchange at the interface related to the evaporation. Several validation benchmarks assess the better performances of the improved software. Various adiabatic configurations are simulated in order to test the capability of the numerical framework in modeling actual flows and the comparison with experimental results is very positive. The simulation of a single evaporating bubble underlines the dominant effect on the global heat transfer rate of the local transient heat convection in the liquid after the bubble transit. The simulation of multiple evaporating bubbles flowing in sequence shows that their mutual influence can strongly enhance the heat transfer coefficient, up to twice the single phase flow value.

Model-Centric, Context-Aware Software Adaptation

Software must be constantly adapted to changing requirements. The time scale, abstraction level and granularity of adaptations may vary from short-term, fine-grained adaptation to long-term, coarse-grained evolution. Fine-grained, dynamic and context-dependent adaptations can be particularly difficult to realize in long-lived, large-scale software systems. We argue that, in order to effectively and efficiently deploy such changes, adaptive applications must be built on an infrastructure that is not just model-driven, but is both model-centric and context-aware. Specifically, this means that high-level, causally-connected models of the application and the software infrastructure itself should be available at run-time, and that changes may need to be scoped to the run-time execution context. We first review the dimensions of software adaptation and evolution, and then we show how model-centric design can address the adaptation needs of a variety of applications that span these dimensions. We demonstrate through concrete examples how model-centric and context-aware designs work at the level of application interface, programming language and runtime. We then propose a research agenda for a model-centric development environment that supports dynamic software adaptation and evolution.

Software als Schutzgegenstand des Europäischen Urheberrechts

After 20 years of silence, two recent references from the Czech Republic (Bezpečnostní softwarová asociace, Case C-393/09) and from the English High Court (SAS Institute, Case C-406/10) touch upon several questions that are fundamental for the extent of copyright protection for software under the Computer Program Directive 91/25 (now 2009/24) and the Information Society Directive 2001/29. In Case C-393/09, the European Court of Justice held that “the object of the protection conferred by that directive is the expression in any form of a computer program which permits reproduction in different computer languages, such as the source code and the object code.” As “any form of expression of a computer program must be protected from the moment when its reproduction would engender the reproduction of the computer program itself, thus enabling the computer to perform its task,” a graphical user interface (GUI) is not protected under the Computer Program Directive, as it does “not enable the reproduction of that computer program, but merely constitutes one element of that program by means of which users make use of the features of that program.” While the definition of computer program and the exclusion of GUIs mirror earlier jurisprudence in the Member States and therefore do not come as a surprise, the main significance of Case C-393/09 lies in its interpretation of the Information Society Directive. In confirming that a GUI “can, as a work, be protected by copyright if it is its author’s own intellectual creation,” the ECJ continues the Europeanization of the definition of “work” which began in Infopaq (Case C-5/08). Moreover, the Court elaborated this concept further by excluding expressions from copyright protection which are dictated by their technical function. Even more importantly, the ECJ held that a television broadcasting of a GUI does not constitute a communication to the public, as the individuals cannot have access to the “essential element characterising the interface,” i.e., the interaction with the user. The exclusion of elements dictated by technical functions from copyright protection and the interpretation of the right of communication to the public with reference to the “essential element characterising” the work may be seen as welcome limitations of copyright protection in the interest of a free public domain which were not yet apparent in Infopaq. While Case C-393/09 has given a first definition of the computer program, the pending reference in Case C-406/10 is likely to clarify the scope of protection against nonliteral copying, namely in how far the protection extends beyond the text of the source code to the design of a computer program and where the limits of protection lie as regards the functionality of a program and mere “principles and ideas.” In light of the travaux préparatoires, it is submitted that the ECJ is also likely to grant protection for the design of a computer program, while excluding both the functionality and underlying principles and ideas from protection under the European copyright directives.