Tire Performance
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. ESTUDO DE TRAFEGABILIDADE APLICADO A VEÍCULOS DE RODA EM TRANSPORTE E TRAÇÃO / TRAFFICABILITY STUDY APPLIED TO WHEELED VEHICLES IN TRANSPORT AND TRACTION
The ability of vehicles to traverse soft soils is an important aspect of their performance. The geological, climate and topography diversity originated, in Rio Grande do Sul, extensive areas of hydromorphic clay soils, as example, Planssoils and Gleissoils. When saturated of water, these soft soils present low loads support, difficult agricultural machinery
Publicado em: 2010
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14. Analysis of the rheological behavior of cement pastes containing tire residues for oil wells / Análise do comportamento reológico de pastas de cimento contendo resíduos de pneu para poços de petróleo
The low tenacity presented by the Portland cement pastes used in the oil wells cementation has been motivating several researches with attention focused on alternative materials. Additives have been developed to generate flexible pastes with mechanical resistance capable to support the expansions and retractions of the metallic covering of the wells that sub
Publicado em: 2009
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15. Construção e análise de desempenho de um forno/fogão solar tipo caixa construído a partir de uma sucata de pneu
An alternative box-type solar cooker built starting from the scrap of a tire and a scrap of old office chair is presented, which principles functions are the effect greenhouse and the concentration. The tire served as structure for making of is the baking enclosure where the absorber (roasting pan 20x30cm) of the solar is located, being re-covered for a glas
Publicado em: 2009
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16. CaracterizaÃÃo de ligantes asfÃlticos modificados com borracha de pneu e aditivo / Characterization of asphalt binders modified with rubber and tire additives
In Brazil, the annual production of waste tires is in the order of 40 million units, with an estimated tire disposal of at least 25 million units per year. According to statistics of the National Association of Tire Industry, 100 million of useless tires are spread around the country in landfills, vacant land, rivers and lakes, causing enormous environment d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/03/2008
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17. Modelo para gestão do desenvolvimento e produção de pneus fornecidos para industria automobilística. / Development management model for tires supplied to automotive industry.
This scientific investigation introduces an innovative product Research and Development model to tires and presents a literature review on the quality of the parts supplied to the automotive industry. There is few literature available about how to manage product development in the tire manufacturing industry. The main reason is because the subject is address
Publicado em: 2008
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18. Decisões de investimento em condições de incerteza: uma abordagem com opções reais equivalentes / Investment decisions under uncertainty conditions: a view upon equivalent real options
Considering the increasing level of competition of many markets, companies that take wrong decision choices for their businesses may compromise its performances. Therefore, in order to reach better performance than its competitors, the decisions should not be based on intuition and unnecessary losses become unacceptable. Under the financial scope, the approp
Publicado em: 2008
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19. Estudos de Durabilidade Frente ao Ataque Ácido de Compósitos Portland-Polímero para Cimentação de Poços de Petróleo
Portland-polymers composites are promising candidates to be used as cementing material in Northeastern oil wells of Brazil containing heavy oils submitted to steam injection. In this way, it is necessary to evaluate its degradation in the commonly acidizind agents. In addition, to identify how aggressive are the different hostile environments it is an import
Publicado em: 2008
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20. Characterization of aged rubber compounds applied to finite elements tire models. / Caracterização do envelhecimento termomecânico de compostos de borracha utilizados em pneus visando a aplicação em simulações pelo método dos elementos finitos.
Durante o desenvolvimento de um novo pneu, um dos maiores desafios enfrentados pelo engenheiro é assegurar sua integridade estrutural, pois o envelhecimento dos compostos de borracha é inevitável. Ele leva a mudanças na estrutura molecular e nas propriedades mecânicas dos materiais, resultando em mudanças indesejáveis no desempenho do pneu. Este traba
Publicado em: 2006
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21. CANAL DE DISTRIBUIÇÃO REVERSO NA RECICLAGEM DE PNEUS: ESTUDO DE CASO / REVERSE DISTRIBUTION CHANNELS IN RECYCLING OF TIRES: A CASE STUDY
For more than a century, the world civilization has benefited from an invention to essential the performance, cost reduction, and comfort of vehicles: the tire. However, the tire has a limited useful life, characterized by the reduction of its grooves, up to a limit that jeopardizes the stability of the vehicle. Once such useful life is exceeded, a carcass c
Publicado em: 2004
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22. Analysis of emergency braking performance with particular consideration of temperature effects on brakes
During vehicle deceleration due to braking there is friction between the lining surface and the brake drum or disc. In this process the kinetic energy of vehicle is turned into thermal energy that raises temperature of the components. The heating of the brake system in the course of braking is a great problem, because besides damaging the system, it may also
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2001
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23. ANÁLISE DO COMPORTAMENTO DE UM MURO DE CONTENÇÃO UTILIZANDO PNEUS / BEHAVIOUR OF A GRAVITY RETAINING WALL USING SCRAP TIRES / ANÁLISIS DEL COMPORTAMIENTO DE UN MURO DE CONTENCIÓN UTILIZANDO NEUMÁTICOS
Construction of a retaining wall using scrap tires and soil is presented in this thesis. The technique was developed as part of a research program at PUC-Rio in collaboration with University of Ottawa and Geo-Rio. The present work consisted of building and analyzing an experimental retaining wall which was constructed in Jacarepaguá, Rio de Janeiro and made
Publicado em: 1998