Navegação por assunto "Engenharia mecânica"
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Compressão de sinais de radares meteorológicos usando o Algoritmo MMP (Multidimensional Multiscale Parser)
| Postado em: 28 mar. 2008In this work, it is proposed an extension of the lossy compression algorithm known as Multidimensional Multiscale Parser (MMP). This new version, called 3D-MMP, allows the MMP algorithm to effciently compress three-dimensional ... -
Um estudo comparativo dos harmônicos de torques gerados pelos inversores de tensão de freqüência variável
| Postado em: 26 mar. 2007The use of Variable Frequency Power Inverters, mainly those used with induction motors, is a practice that has progressively allowed the replacement of mechanical speed reducers. However, this practice has led to new ... -
Influência do fator de atrito com dependência da freqüência na simulação de transientes em oleodutos
| Postado em: 30 mar. 2007Unsteady liquid flow in pipelines is usually described by using onedimensional models and, in a procedure referred to as quasi-steady approximation, friction losses are estimated by formulae derived for steady state flow ... -
Proposta de um critério de resistência para juntas metálicas colocadas
| Postado em: 19 set. 2007Butt and fillet welds are usually used in the design of structural elements. Since heat is used in the welding operation, there is a possibility of metallurgical changes in the parent metal in the vicinity of the weld. ...