Simulação e controle de um quadcopter utilizando lógica fuzzy

The present work develops a model to simulate the dynamics of a quadcopter being controlled by a PD fuzzy controller. Initially is presented a brief history of quadcopters an introduction to fuzzy logic and fuzzy control systems. Afterwards is presented an overview of the quadcopter dynamics and the mathematical modelling development applying Newton-Euler method. Then the modelling are implemented in a Simulink model in addition to a PD fuzzy controller. A prototype proposition is made, by describing each necessary component to build up a quadcopter. In the end the results from the simulators are discussed and compared due to the discrepancy between the model using ideal sensor and the model using non-ideal sensors

Uma abordagem de multiagentes brownianos para a modelagem e simulação da dinâmica das populações no contágio da esquistossomose

Não disponível

Complexo Cultural da Cana de Sertãozinho - SP: Museu Nacional da Cana (Brasil Arquitetura) Palco da Cana Pavilhão de Eventos

Não disponível

Modelagem e simulação numérica de um sistema de refrigeração por absorção utilizando o par H2O-LiBr

The term refrigeration solar refers to any air conditioning system that uses solar energy as a primary energy source. The use of solar radiation for cooling purposes is divided according to their technological possibilities which are distinguished from one another as the way that energy is involved in the cycle, work or heat. The first case is related to vapor compression cycles, in which the work input is provided by the photovoltaic conversion of solar energy into electrical energy. In the second case, an absorption refrigeration cycle is used and the thermal energy collected from the solar radiation is provided at the generator of this cycle.. In this work a system with an absorption cycle using the pair BrLi-water, using solar energy as input is modeled. It is considered a simple refrigeration cycle whose the equations of mass and energy conservation in each component are developed in order to obtain an algebraic equation set and a simulation routine using the EES software. Although the simulation operates under certain specified thermal load it is possible to estimate the necessary areas of heat exchangers and solar collectors

Análise entoacional acústica e auditiva de alguns enunciados do português brasileiro

The main goal of this work is the analysis of theoretical and methodological aspects of speech melody variation (intonation), with special reference to the pronunciation of one speaker. In order to carry on this study, different types of sentences (declarative, questions, etc.) and the intonational focus as well as the speaker‟s attitude (irony, emphasis, etc.) were observed and analyzed with special acoustic software (PRAAT) and with an auditory analysis of a text read by the subject. The aim of this work is to verify whether the acoustic analysis matches with the auditory perception phonetically, according to M.A.K. Halliday‟s methodology, following Cagliari (2007), who adapted Halliday‟s model to describe the intonation of Portuguese

Órtese de tornozelo: efeito sobre a razão de pico torque muscular eversor excêntrico/inversor concêntrico do tornozelo durante simulação do basquetebol

The ankle sprains represent the most common injuries in sports and basketball. In this sense, the use of ankle bracing and strength capacity analysis of the ankle evertor and invertor muscles, have been suggested as preventive measures and important tools for identifying risk factors associated with ankle sprains. However, questions still persist as to effect of the use ankle bracing on biomechanical variables related to the stability of the ankle. For this reason, this study aims to analyze the effect of the use of ankle bracing on peak torque (PT) of ankle evertor and invertor muscles and on eccentric evertor/concentric invertor torque ratio (EVEECC/INVCON), during the basketball match-play simulation. Ten healthy college basketball players, without mechanics or functional ankle instability performed a laboratory-based protocol representative of work rates observed during basketball match-play, in two different situations, with and without use of ankle bracing. The test was composed of a succession of intermittent physical effort equally distributed in four periods of 10 minutes each, considering the mechanical and physiological demands of a basketball match-play. Prior to the start of the trial (Evaluation 1) and after 2° (Evaluation 2) and 4° (Evaluation 3) periods, the subjects performed five maximal isokinetic concentric and eccentric contractions of ankle invertor and evertor muscles, separated by two minutes rest, at 60 °/s and 120 °/s. After testing for normality of data distribution with the Shapiro-Wilk test, was used the ANOVA repeated measures for two factors and post-hoc Bonferroni test for comparison of variables between assessments. Was adopted p < 0.05. There was no significant difference for PT and EVEECC/INVCON torque ratio between assessments. There was a decrease in PT EVEECC at 60º/s and 120º/s for the ...(Complete abstract click electronic access below)

Concepção e simulação de uma chaminé solar

The present work intends to study some fluid dynamic and heat transfer aspects of a solar chimney, aiming at a preliminary design of a facility. Some definitions and concepts of this system are presented. The simulation was performed based on a theoretical model validated with measurements of a prototype in Manzanares, Spain. Using the same theoretical model and some considerations, dimensions on a small scale are applied, making the model more interesting from its constructive aspect. The results show the behavior of the air velocity inside the chimney and illustrate some values of two preselected turbines. This technology looks promising in Brazilian territory due to high levels of solar radiation

Caracterização e origem da composição química da incrustação e simulação de cenários de perda de energia em setor da rede de abastecimento de água da cidade de Rio Claro - SP

The purpose of this work was the inlay’s characterization from the water supply networks of Rio Claro-SP city; as well analyze the influence of network’s aging in the actual system. To do this, some samples of inlays were collected and made chemistry analysis and X-Ray Diffraction Spectrometry. The history of the source water quality was also analyzed, to make possible to known the origins of the inlays. To evaluate the performance of the network, some different scenarios have been simulated, varying the resistance coefficient of the water supply networks of Rio Claro-SP. The characterization results showed that there are basically oxide and hydroxide of iron (magnetite and goethite) and quartz in the inlays, which are materials of high hardness. The hydraulic simulations indicated that the simulated scenarios had a variation of ~2000% in terms of loss of energy

A percepção da arquitetura através da cor: um estudo de caso da cor aplicada no complexo do centro Dragão do Mar de arte e cultura em Fortaleza/CE

Este trabalho é uma pesquisa sobre a cor, suas teorias, seu processo de percepção pelo ser humano e sua aplicabilidade na arquitetura. O estudo de caso foi realizado no entorno do Centro Dragão do Mar de Arte e Cultura, localizado na cidade de Fortaleza, Ceará, cujo processo de restauração se iniciou pelo projeto cromático, através do movimento Cores da Cidade, proporcionando um novo espaço urbano multicolorido. Resgata-se um pouco da história das cores através de uma abordagem sobre as teorias elaboradas por diversos estudiosos do tema ao longo dos anos, considerando seus aspectos físicos, químicos e psicológicos. Além disso, é apresentado um item indispensável para a leitura de projetos: a percepção. Recorrer às principais abordagens feitas sobre este tema é importante para dispormos de ferramentas necessárias a uma boa compreensão do projeto selecionado, a fim de entendermos como a cor participa do processo de concepção do mesmo, e como atua perante os usuários e observadores no espaço construído. A idéia foi trabalhar a cor situando-a num contexto: o contexto da arquitetura. Qual seu real papel ao constituir um ambiente construído? Será mesmo real ou depende do emocional de cada um? Como perceber a arquitetura através das cores? Estas e outras perguntas guiaram as buscas para a elaboração deste trabalho

Parametrização de modelo para simulação de distribuição de combustíveis em um terminal

A great competition between companies happens nowadays, due to, among other factors, the globalized economic system, the growing consumer demand and the technological advances. This fact implies the need for fast and efficient tools in decision making. A validated simulation model is able to perform this task. Thus, it was parameterized a simulation model of a fuel distribution terminal. It is a complex system because of its great variability. The model´s data input were collected, however the model was not statistically validated, in other word, does not adequately represent the real system. A search was made for the possible causes of this fact: dividing the compartments of tanker trucks, data collection may have been insufficient, inefficient model for unloading of biofuels

Análise comparativa de softwares de simulação de onda de cheia e corridas de massa

This scientific research aimed at presenting a comparative analysis of softwares used to represent the processes of flood wave and debris flow. For this, a literature review was performed on these processes and on simulation models used to represent them. Then, a research on scientific database and developers’ websites was performed to identify the softwares used to simulate these processes. This step was performed based on specific criteria such as the type of simulation performed by the software, its practical applications and a user friendly interface. A free distribution and totally functional software was chosen and its simulation mechanisms were tested through a simulation exercise and the results interpreted based on data on measured in the Basin of Ribeirão Marins section Monjolinho located in Piracicaba - SP. With respect to the processes, it was sought to present the dynamics, constraints, parameters and variables used to understand them and for the simulation models were presented the conceptual aspects of mathematical modeling including the steps of the simulation process and the different types of simulation models used to represent them. In total, 20 softwares were identified, and the software object of analysis was the ABC 6 that performs simulation of flood wave. Through the simulation exercise, it was observed that were presented overestimated values of flow compared to measured data in the basin. For both hypotheses were raised about the causes of the discrepancy between the observed and simulated flow. It has been concluded that the simulation process consisted of a complex procedure where generalizations, misrepresentations and simplifications may occur due to the data used and the method adopted, but it is a useful tool in planning and decision making in various types of studies and environmental projects

Arquitetura esportiva e a criação de um estádio: construção de um estádio de futebol para o S.C. Corinthians Paulista

O Corinthians é o clube de maior torcida no Estado de São Paulo, o segundo maior no Brasil e ainda não possui um estádio adequado para grandes competições. Localizado na região do Tatuapé, na capital paulista, o Parque São Jorge e o Estádio Alfredo Schürig são o que o time conta como espaço para treino. Suas partidas em casa são disputadas no Estádio do Morumbi ou do Pacaembu. No ano de seu centenário, entre muitos projetos já existentes, apresenta-se um novo conceito: um estádio para o clube e que também atenda as exigências de uma competição mundial, a Copa. A Copa do Mundo de Futebol atrai olhos de todos os continentes. É o evento de maior audiência e o segundo maior em termos de arrecadação (perdendo apenas para o Super Bowl). Para isso são necessárias que as exigências determinadas pela FIFA (Federação Internacional de Futebol Associado) sejam atendidas. Com todo o custo que envolve a construção e manutenção de um estádio, foram estudadas maneiras de gerenciá-lo para que a arrecadação seja suficiente para sua manutenção. Espera-se que a arquitetura possa colaborar com soluções práticas para esse desafio

Arquitetura Inclusiva: reabilitação da Escola para Deficientes Visuais de Presidente Prudente, SP

As edificações devem ser adequadas aos usos aos quais se destinam independente de serem públicas ou privadas, e devem ainda contemplar a mobilidade nos ambientes sem que haja riscos físicos ou quaisquer impedimentos que deneguem ou restrinjam a integridade da utilização e vivência das pessoas com deficiência. Neste sentido, este trabalho possui essa preocupação ao propor uma intervenção arquitetônica na Escola Especial para Deficientes Visuais “Prof. Faradei Boscoli” e Sede da Associação Filantrópica de Proteção aos Cegos (AFPC). Como existe um número considerável de deficientes visuais não só no município de Presidente Prudente como na região, verifica-se a importância do papel exercido por essa instituição, principalmente no âmbito da inclusão social. Assim, inicia uma investigação sobre a questão da deficiência visual relacionando a percepção dos indivíduos cegos e com baixa visão. Depois examina projetos arquitetônicos referenciais nessa área de estudo, bem como faz diagnóstico da situação existente da Escola. Na sequência, analisa o potencial do lugar e seu entorno urbano. Por conseguinte, a síntese das etapas anteriores estabelece diretrizes projetuais para apresentar ao final um projeto arquitetônico de reabilitação do espaço da escola/sede, a qual objetiva a melhoria no desempenho de suas funções e ampliação das mesmas. Desse modo, essa proposta visa constituir num auxílio na inclusão social das pessoas com deficiência visual, bem como contribuir no seu desenvolvimento pessoal

Ajuste do modelo QUAL2K e simulação de cenários para o Ribeirão Claro

The project has as objective to adjust the model QUAL2K to “Ribeirão Claro” river to evaluate the behavior of OD and DBO when are simulated the following sceneries: (i) implantation of a hypothetic wastewater station treatment that treats all the effluent thrown nowadays in the body of water; (ii) increase of withdrawal flow of DAAE to public supply and (iii) increase of nowadays flow of wastewater throwing, being the two last caused for the population increasing. The results obtained allowed to conclude that the model QUAL2K presented a good adjustment to the variable OD and a reasonable adjustment to the variable DBO, being that the same was suitable to the simulation of the sceneries proposed.

Arquitetura da essência: a importância do envolvimento do arquiteto para o espaço e a sociedade

Não disponível