Car Suspension
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Topological and Topographical Optimization of Automotive Spring Lower Seat
Abstract The design of a suspension system emphasizes weight reduction in this high-computation technology era. Understanding that the reduction of suspension mass can lead to cost and material reduction is important; moreover, the riding performance of the vehicle should be improved. Topology and topography structure optimization for the spring lower seat i
Lat. Am. j. solids struct.. Publicado em: 2016-07
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2. Optimal design of passenger car suspension for ride and road holding
The primary function of a vehicle suspension system is to isolate the road excitations experienced by the tyres from being transmitted to the passengers. In this paper, a suitable optimizing technique is applied at design stage to obtain the suspension parameters of a passive suspension and active suspension for a passenger car which satisfies the performanc
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-03
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3. Controle robusto de suspensão semi-ativa para caminhonetes utilizando amortecedores magneto-reológicos. / Robust control of a semi-active pickup truck suspension using magneto-rheological dampers.
A utilização de sistemas semi-ativos no controle de movimento e vibração vem crescendo muito nos últimos anos, e está se firmando como a opção mais econômica em muitas aplicações. Os sistemas de controle semi-ativos baseados em fluidos magneto-reológicos (MR) já são empregados no controle de vibrações desde máquinas de lavar a grandes pontes
Publicado em: 2008
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4. Skyhook control of a hydropneumatic suspension system developed for use in agricultural farm wagons / Controle Skyhook aplicado a um modelo de suspensão hidropneumatica para carretas agricolas
This study deals with the development of a control system suited for a Hydropneumatic Suspension System designed for use in Agricultural Devices. Using the Skyhook Control methodology, two control systems are designed for a quarter car non-linear model, an active and a semi-active one. For performance measurement, two kinds of road excitation sources are con
Publicado em: 2006
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5. Análise de conforto e elastocinemática das suspensões de duplo estágio de um veículo de competição off-road em ambiente multicorpos / Elastokinematic and ride analisys of a off-road competition vehicle double rate suspension using a multibody model
This dissertation presents the study of a off-road competition vehicle ride and the double rate suspensions elastokinematic behavior using the multibody software MSC-ADAMS. The vehicle multibody model includes the rear and front suspensions, the steering system, the tires and the sprung mass. The suspensions elastokinematic analysis defined geometric configu
Publicado em: 2006
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6. Estudo da dinâmica vertical de uma suspensão veicular do tipo MacPherson / A study about the vertical dynamic of a MacPherson vehicle suspension system
O sistema de suspensão de um veículo desempenha papel fundamental na isolação das vibrações provenientes da pista e de outras fontes de excitações e tem como alguns de seus objetivos: melhoria do conforto dos passageiros, manutenção da integridade das cargas e das vias (asfalto), aumento da segurança, proporcionando melhores condições de aderên
Publicado em: 2006
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7. Dinâmica longitudinal : efeitos da geometria de suspensão nas mudanças de atitude da massa suspensa e os esforços nos elementos da suspensão / Longitudinal dynamics : effects of the geometry suspension on the sprung mass attitude and the effort on elements suspensions
This work has objective study the influence of suspension geometry on the sprung mass attitudes. It presents a confrontation among works and authors and this segmented in three parts; where in the first part the basic concepts are defined, dive, squat, lift, anti-dive, anti-squat, anti-lift and equivalent trailing-arm; in the second part the limitations are
Publicado em: 2005
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8. A comparative study between the suppliers of automotive components to conventional and to modular plants. / Estudo comparativo entre os fornecedores de componentes automotivos de plantas convencionais e modulares.
The objective of this dissertation is to verify and to understand how does the modular strategy being implemented by the car assembler influences the suppliers in the 2nd. level of the automotive chain. Modular strategy is conceptually based on modularity (more added value to components as they become modules) and outsourcing (suppliers involvement in acti
Publicado em: 2004
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9. Controle semi-ativo em suspensões automotivas
In this thesis, it was developed a study of the principal sorts of semi-active car suspensions. The possibility of a semi-active suspension system depends on the costs envolved, the hardware available, and the control algorithm. To show how this subjects influence the conception process of a car suspension, we compiled some algorithms and proposed an altemat
Publicado em: 1998
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10. Analise de suspensões veiculares utilizando tecnicas de controle robusto
This thesis presents an analysis of the H IND. 2 e H IND. INFINITO robust control theory via linear matrix inequalities, and an approach by Youla parametrization of the closed loop transfer matrix, applied to the design of three different vehicular suspension models. The focus is on comparative analyses of the techniques employed rather than on a specific pr
Publicado em: 1998
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11. Analise do comportamento dinamico de um veiculo automotivo
The theoretical dynamical behaviour of a four wheel car model is analysed. The physical model with seven degrees of freedom is chosen and after some simplifications the corresponding mathematical model is established. First is studied the dynamical eigenbehaviour of the model for both unloaded and loaded conditions through the obtention of the eigenvalues an
Publicado em: 1989
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12. Variable severity and Ia antigen expression in streptococcal-cell-wall-induced hepatic granulomas in rats.
We have previously reported that a single intraperitoneal injection of an aqueous suspension of group A streptococcal cell wall (SCW) fragments induces extensive hepatic granulomas in LEW/N female rats, but not in F344/N female rats. To further understand the mechanisms underlying these differences, we compared granuloma development and class II major histoc