Linear Motors
Mostrando 1-12 de 25 artigos, teses e dissertações.
-
1. Quantification of Aerospace Polymer Blends by Thermogravimetric Analysis and Infrared Spectrometry
ABSTRACT Ethylene-propylene-diene elastomer (EPDM) is employed as thermal insulation for rocket motors, as well as EPDM blends with ethylene vinyl acetate (EVA) have been used in the aerospace industry. The quantification of these blends is more common using Fourier Transform Infrared Spectrometry (FT-IR) by transmission mode, but without discussing sample p
J. Aerosp. Technol. Manag.. Publicado em: 07/01/2019
-
2. Development of an Analytical Method to Predict the Behaviour of the Magnetic Field in PM Linear Motors with Halbach Array
Abstract This paper describes the application of the method of separation of variables and the use of Fourier series for solving the Laplace's and Poisson's equations on the study and analysis of the magnetic field produced in a linear motor with Halbach array. Equations for predicting the 2D magnetic flux density distribution produced in the air gap were de
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-03
-
3. Uma contribuição ao estudo e desenvolvimento de técnicas de controle de potências ativa e reativa do gerador de relutância varável para aplicação em sistemas de geração eólica de pequena potência / A constribution to the study and development of techniques for control of active and reactive power of the switched reluctance generator for application in wind power generation systems of small power
O objetivo deste trabalho é o de propor técnicas de controle de potências ativa e reativa de geradores de relutância variável (GRV) aplicados `a geração eólica de energia eólica. Desenvolveu-se uma técnica de controle direto de potência ativa utilizando um controlador proporcional-integral e outra técnica utilizando um controlador de modos desliz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
-
4. Projeto e construção de um motor elétrico linear aplicado à bioengenharia / Design and construction of a linear electric motor applied to bioengineering
Considerando-se o atual estagio de desenvolvimento das máquinas elétricas, tanto em termos de ferramentas computacionais auxiliares nas simulações e nos projetos, quanto de materiais e sistemas eletrônicos de acionamento e controle, propõe neste trabalho a construção de um dispositivo eletromecânico, na classe dos motores elétricos lineares, que at
Publicado em: 2011
-
5. Controle linear de maximo torque do motor sincrono de imãs permanentes interiores / A linear maximum torque control of the interior permanent magnet synchronous motor
In this work is presented the linear maximum torque control of an interior permanent magnet synchronous operating in the constant torque and field weakening ranges. The constant torque control is implemented by using the maximum torque per Ampére curve of the motor. The terminal stator voltage remains constant along the field weakening range due to the arma
Publicado em: 2009
-
6. Modeling and control of speed and tension of a skinpass mill. / Modelagem e controle de velocidade e tensão de um laminador de encruamento.
Este trabalho faz uma introdução à evolução dos processos de laminação a frio, acionamento e controle dos mesmos, com foco na laminação de encruamento. O principal objetivo é estabelecer um modelo linear dos sistemas de acionamento, que permita o projeto de um controle multivariável. Pretende-se que a robustez do controle multivariável contribua
Publicado em: 2009
-
7. Identificação de parâmetros de motor de indução linear tubular para extração de petróleo. / Identification of parameters of the tubular linear induction motor for the extraction of oil.
This work presents the identification of parameters of the tubular linear induction motor for the extraction of oil, called MATÆOS - which is the Portuguese acronym for Asynchronous Tubular Motor for Application to Subterranean Oil Extraction. The first step to the identification of the motor parameters was the implementation of the supervisory and control
Publicado em: 2008
-
8. Reologia de Biodiesel de origens diversas e das misturas Diesel/Biodiesel
Cost and depletion of petroleum derived fuels are increasing, thus alternative fuels are quite required. Biodiesel (B100), which is comprised of fatty acid methyl (or ethyl) esters (FAMEs/FAEEs) derived from vegetable oils, animal fats or waste oils mainly through transesterification, is an alternative source of energy. It is renewable, available locally, bi
Publicado em: 2008
-
9. Identificação on-line de motores de indução através de modelo discreto para sinais senoidais
In this work are developed two on-line identification methods for three-phase induction motors based on discrete models obtained when we consider continuous systems excited by sinusoidal signals. The first method uses the discrete model of the homopolar machine in the stationary frame to estimate the stator resistance and the stator dispersion inductance and
Publicado em: 2006
-
10. FERRAMENTA COMPUTACIONAL PARA ACIONAMENTO DE MOTORES DE PASSO APLICADOS AO PROJETO DE EQUIPAMENTOS CNC / COMPUTERIZED TOOL FOR STEPPING MOTOR STARTING APPLIED TO THE CNC EQUIPMENTS PROJECT
The high competitiveness between companies, the projects complexity, the machinery modernization, the production flexibility and the costs reduction, lead small and medium companies to aim new diversification of equipments and products to maintain themselves in a worldwide market. One way of seeking a better mechanic production concerning these aspects is us
Publicado em: 2006
-
11. Desenvolvimento de um atuador de posição baseado em liga de memória de forma com resfriamento forçado. / Development of a position actuator based on a shape memory alloy with forced cooling.
Shape Memory Alloys (SMA) consist of a group of metallic materials that demonstrate the ability to return to some previously defined shape when subjected to the appropriate thermal cycle, due to shift in the materials crystalline structure. The change that occurs within SMAs crystalline structure is not a thermodynamically reversible process and results in h
Publicado em: 2006
-
12. ANÁLISE E DESENVOLVIMENTO DE UM MANIPULADOR ROBÓTICO PARA ARMAZENAMENTO DE VOLUMES PADRONIZADOS / ANALYSIS AND DEVELOPMENT OF AN ROBOTIC MANIPULATOR TO STORAGE OF STANDARDIZED CONTAINERS
A great part of the industry and of the wholesaler and retailer commerce sector, is dealing with some problems related to the storage of their products in sheds. The development of this prototype was initiated in order to improve the products (books, medicines, CDs, boxes, pallets) storage / recovery operations and the use of the vacant spaces. This developm
Publicado em: 2002