Automotive Brakes
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Estudo do fenômeno "stick-slip" aplicado às vibrações de freios automotivos / Study of stick-slip phenomenon applied in vibrations of automotive brakes
O interesse da indústria automobilística em projetar freios menos ruidosos vem incentivando pesquisas na área de acústica e vibração. A compreensão de um dos principais fenômenos de excitação de vibração em sistemas com atrito, o stick-slip, é de grande importância para o aprofundamento desses estudos, que muitas vezes não consideram uma fonte
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/11/2011
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2. Implementação de um programa computacional para auxilio ao projeto de freios automotivos utilizando técnicas de metodologia de projeto / Implementation of a computer program to aid the design of automotive brakes using techniques of the design methodology
This work presents the development of the informational and preliminary design phases to friction brakes applied to urban vehicles of low cost. The design development of the brake systems for vehicles with less or zero pollutants emissions, with high efficiency depends strongly of the control systems, dirigibility conditions and mainly of the solutions to th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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3. Disc brake noise analysis using instability of complex eigenvalue / Instabilidade de freios a disco por analise de autovalor complexo
To understand, model and mitigate disc brake noise is still one of the greatest challenges for the automotive industry. It is substantially important for manufacturers and suppliers to predict the disc brake noise in a design phase. Squeal is a brake noise in the 1-15 kHz frequency range, and can be defined as a self-excited friction problem, which can gener
Publicado em: 2008
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4. Investigação das características tribológicas e ambientais de termoplásticos de engenharia especiais para uso em materiais de atrito. / Investigation of tribological and environmental characteristics of high performance thermoplastics to friction materials.
Organic clutch friction facings are basicly composed of an organic matrix, fillers, solid lubricants and reinforcing fibers. An organic matrix has a structural function and has a large influence over the tribological properties of the system (coefficient of friction and wear rate in both, friction material as for the metal counterpart). Based on the automoti
Publicado em: 2007
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5. The mechanism of changes in the surface layer of grey cast iron automotive brake disc
The aim of the study was to create a model, describing the run of tribological processes in the surface layer of grey cast iron automotive brake discs. Grey cast iron discs mating with non-asbestos organic brake pads were chosen for the investigations, as the most widely used materials in car brakes. Samples for surface analysis were prepared from disc opera
Materials Research. Publicado em: 2005-12
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6. Evaluation of the Brazilian brake pads performance / Avaliação do desempenho de pastilhas automobilisticas nacionais
Automotive brake systems are mainly friction based. The world tendency is toward using disc brakes instead of drum brakes, which are usually installed in the rear wheels. The increase in the performance of automotive vehicles and the changes in the dynamic characteristics have conducted to more efficient brake systems. The expansion of the brake pads market
Publicado em: 2005
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7. Comparison of the subjective x objective braking comfort analysis of a passenger car. / Comparação da análise de conforto de frenagem subjetiva x objetiva de um veículo de passeio.
Considering todays competitive automotive market, the customer satisfaction has become a competitive advantage to be considered, due to the customer expectation increasing regarding the quality perception. In this aspect, one of biggest existing difficulties in the brake system design is to transform subjective information and/or opinions into objective in
Publicado em: 2005
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8. Metodologia para analise da confiabilidade em freios pneumaticos automotivos
This work presents a methodology for reliability analysis of automotive pneumatic brakes, with the objective of providing the designers and the brake systems analysts with some tools which can facilitate the incorporation of the reliabilty variables in the design of the components, the subsystems and the brake systems, in project s realtime. The Weibull dist
Publicado em: 1996