Internal Model Principle
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. MÁS ALLÁ DEL RELOJ COMO MODELO DEL SER VIVO: LA DISTINCIÓN MÁQUINA NATURAL Y MÁQUINA ARTIFICIAL EN LEIBNIZ
ABSTRACT During the seventeenth century, the clock seems the most appropriate model for thinking about living beings. The German philosopher G. W. Leibniz (1646-1716), is part of the mechanical tradition that conceives living beings from the clock or the automata’s model, but he establishes an essential distinction between natural and artificial machines.
Kriterion. Publicado em: 29/08/2019
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2. Comparison of semi and fully-implicit time integration schemes applied to a damage and fatigue phase field model
Abstract In this work, we apply semi and fully-implicit time integration schemes to the damage and fatigue phase field presented in Boldrini et al. (2016). The damage phase field is considered a continuous dynamic variable whose evolution equation is obtained by the principle of virtual power. The fatigue phase field is a continuous internal variable whose
Lat. Am. j. solids struct.. Publicado em: 14/06/2018
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3. The Composite Ground Finite Layer Method and its Application to Pile Foundation Analysis
Abstract To study the influence of a foundation structure on the ground, the finite layer method of composite ground is derived based on the finite layer method (FLM) theory of the semi-analytic numerical method and the force method principle of elastic material, which is used to analyze a layered ground including multiple internal constraint planes. By simp
Lat. Am. j. solids struct.. Publicado em: 2016-12
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4. Estratégia de controle robusto para filtro ativo paralelo sem detecção de harmônicos de correntes
Resumo: As estratégias de controle convencionais de filtros ativos de potência paralelos (FAPP) empregam esquemas de detecção de harmônicos em tempo real, usualmente implementados com filtros digitais. Isso aumenta o número de sensores na estrutura do filtro, o que resulta em altos custos. Além disso, esses esquemas de detecção introduzem atrasos qu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/02/2011
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5. Controladores baseados no princípio do modelo interno com ação Anti-Windup / Controllers basead on internal model principle with anti-windup
Os controladores baseados no princípio do modelo interno têm encontrado destaque no controle de sistemas devido a sua capacidade de realizar o rastreamento robusto dos sinais cujos modelos geradores estejam embutidos nas suas estruturas internas. Os controladores com ação integral, ressonantes e repetitivos são exemplos da aplicação deste princípio.
Publicado em: 2011
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6. Controle preditivo de horizonte infinito para sistemas integradores e com tempo morto. / Model predictive control of integrating systems with dead time.
Model Predictive Control (MPC) has gained wide acceptance in chemical industry in the last 30 years. The basic principle of this technique is to use a model to calculate plants future behavior based on the inputs it would receive in the next sampling periods. It must be set an objective, mainly composed of some measure of the distance between plants predicte
Publicado em: 2011
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7. CAPITAL REQUIREMENT BY STOCHASTIC SIMULATION APPLIED TO LIFE INSURANCE AND PENSION FUND / CAPITAL REQUERIDO VIA SIMULAÇÃO ESTOCÁSTICA APLICADO AO SEGURO DE VIDA E FUNDO DE PENSÃO
The major global changes that occurred from the 70s became financial market more volatile, requiring measures that minimize the risk of the system. It started the use of methods based on risk analysis. This new concept has in principle the measurement and ensuring the solvency of a company that can operate safeguarding themselves from the economic risks, wit
Publicado em: 2009
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8. Trajectory planning of jumping over obstacles for hopping robot
Trajectory planning strategy is proposed to jump over an obstacle integrated three various dynamics in one-legged multi-joint hopping robot. A concept of inertia matching ellipsoid and directional manipulability are extended to optimize take-off postures. Optimized results have been used to plan hopping trajectory. Aimed at the sensitivity of motion trajecto
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-12
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9. DYNAMIC BEHAVIOR OF BURIED PIPES: METHODOLOGY AND COMPUTATIONAL IMPLEMENTATION / COMPORTAMENTO DINÂMICO DE DUTOS ENTERRADOS: METODOLOGIA E IMPLEMENTAÇÃO COMPUTACIONAL
This work presents a numerical methodology for the analysis of buried pipes employed by the transport of oil and gas subject to dynamic loads. Emphasis is given to seismic loads. A finite element model based on a special class of beam element for the pipe representation is employed. Both geometric and material nonlinearities are considered in a total Lagrang
Publicado em: 2008
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10. A importância da lei de responsabilidade fiscal para a valorização da contabilidade pública nas prefeituras municipais da região norte do estado do Paraná / Law of fiscal responsability on public valorization at municipal city hall of region north of Paraná
The Law of Fiscal Responsibility (LFR) has as principle the power to control the balance between prescriptions and expenditures during the period of the electoral of public, municipal, state the managers and federal mandate. For the present work they had been searched the management of 22 municipal cities hall of the region north of the state of the Paraná,
Publicado em: 2008
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11. A transição do MST para a agroecologia
The objective of this work is to analyze historically the concepts of the Movimento dos Trabalhadores Rurais Sem Terra (MST), dealing with production organization and work done in rural settlements, throughout the period of its formation, structural organization and implementation of the development process. MST appeared during a period marked by agricultura
Publicado em: 2007
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12. CONTROLADORES DISCRETOS DE TENSÃO BASEADOS NO PRINCÍPIO DO MODELO INTERNO APLICADOS A INVERSORES TRIFÁSICOS PWM / DISCRETE-TIME VOLTAGE CONTROLLERS BASED ON THE INTERNAL MODEL PRINCIPLE USED IN THREE-PHASE PWM INVERTERS
A presente tese de doutorado contribui para a análise, projeto e implementação de controladores discretos baseados no Princípio do Modelo Interno, com o intuito de aprimorar o desempenho de inversores trifásicos PWM a três braços com transformador isolador usualmente utilizados no estágio de saída de UPS de dupla conversão de média potência. Inic
Publicado em: 2005