Kinematical Analysis
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Análise dinâmica de rolamentos de esfera / Dynamic analysis of ball bearing
Ball bearings are simple machine elements but largely used in several applications involving high velocities, high temperatures and different loads. The load model is fundamental for the ball bearing s dynamic and for this reason it is necessary to define with accuracy the mechanisms performance using analytical methods. The objective of this thesis is to an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/08/2010
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2. Análise cinemática, dinâmica, de vibração e de tensão em motores de combustão interna com virabrequim e bielas flexíveis / Kinematical, dynamical, vibration and stress analysis of internal combustion engines with flexible crankshaft and connecting-rod
Este trabalho trata da análise cinemática, dinâmica, de vibração e de tensão de um motor de combustão interna (MCI) com componentes flexíveis (virabrequim e biela), obtendo-se assim o comportamento mecânico do motor, em especial do virabrequim e da biela. Deseja-se determinar tal comportamento para o MCI funcionando com velocidade constante e passan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2010
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3. Analise cinematica da movimentação dos membros superiores e inferiores, tronco e cabeça durante a marcha de hemipareticos / Kinematic analysis of upper and lower limbs, trunk and head motions during hemiparetic gait after stroke
The aim of this study was to analyze integrally the movement of upper and lower limbs, trunk and head using the following kinematics variables: joint angles, spatiotemporal variables, trajectory of total body center of mass and partial contributions of the segments for the trajectory of total body center of mass. In order to identify and analyze the gait pat
Publicado em: 2009
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4. Kinematical analysis of handball players trajectories obtained by automatic tracking / Analise cinematica das trajetorias de jogadores de handebol obtidas por rastreamento automatico
The collective sports have become object of scientific investigation in many knowledge areas. A lot of these studies need the development of methodology to quantify the analysis variables. The kinematical analysis of players by videogrammetry gives data about player s position in function of time and gives advantages, like the possibility to analyze lots of
Publicado em: 2007
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5. Proposição, validação e aplicação de um novo metodo para analise cinematica tridimensional da movimentação da caixa toracica durante a respiração / Proposition, validation and application of a novel method to the 3D kinematical analysis of the rib cage motion during breathing
The present work aimed to propose and validate a novel method to the 3D kinematical analysis of the rib cage motion during breathing and to show an example of application. The kinematical analysis was used to describe the 3D motion of the ribs during breathing. The 3D coordinates of surface markers positioned on the ribs, sternum and vertebrae were used to c
Publicado em: 2007
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6. Comparação entre protocolos de marcadores anatomicos e tecnicos para analise cinematica na marcha e na corrida / Comparison of technical and anatomical markers protocols for kinematical analysis in the walking and in the running
The purpose of this study was to compare two protocols for kinematical analysis of sprinters according to velocities, body segments and joint angles during walking and running. The first protocol uses retroreflective markers mounted on fixtures attached to the body segment and the second uses retroreflective markers directly located on the skin surface. Six
Publicado em: 2007
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7. ANÁLISE DE AMPLITUDES DO DECAIMENTO D+ KS(PI)-(PI)+(PI)+ NO EXPERIMENTO FOCUS / AMPLITUDE ANALYSIS OF THE DECAY D+ K (PI)-(PI)+(PI)+ IN FOCUS EXPERIMENT
This thesis is devoted to the study of the decay D+ KS(pi)− (pi)+(pi)+ with data collected from the FOCUS experiment, at Fermilab. The final state composed of 4 pseudo-scalars can be produced through a number of resonant sub-structures. The purpose of this analysis is to find the contributing intermediate states by measuring their relative strenghts an
Publicado em: 2007
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8. Kinematical modeling and optimal design of a biped robot joint parallel linkage
This paper shows the design and analysis of a parallel three-dimensional linkage, conceived to work as the ankle and hip joints of an anthropometric biped robot. This kind of mechanism architecture provides low-weight, highly stable assemblies, and allows the use of actuator synergies. On the other hand, the mechanical transmission ratio is not usually favor
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-12
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9. The nuclear matter effects in pi0 photoproduction at high energies
The in-medium influence on pi0 photoproduction from spin zero nuclei is carefully studied in the GeV range using a straightforward Monte Carlo analysis. The calculation takes into account the relativistic nuclear recoil for coherent mechanisms (electromagnetic and nuclear amplitudes) plus a time dependent multi-collisional intranuclear cascade approach (MCMC
Brazilian Journal of Physics. Publicado em: 2006-12
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10. Análise de um método para equação de convecção formulado à luz da mecânica dos meios contínuos a advecção de anomalias oceânicas e meteorológicas / Analysis of a method for the convection equation formulated in the light of mechanical means of the continuous advection of oceanic and meteorological anomalies
In the present work we studied and analyzed the Trajectories Tube method, a conservative, explicit, simple, physically intuitive, semi-Lagrangian algorithm for the convection equation. Kinematical aspects of the mechanics of continuous media are essentially the tools used for formulation and feasibility analysis. We showed that this method is unconditionally
Publicado em: 2006
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11. Treino em esteira com suporte parcial de peso associado à estimulação elétrica funcional melhora a marcha de hemiparéticos crônicos e efeitos da inclinação da esteira na marcha de sujeitos hemiparéticos.
The purpose of this study was to evaluate the effect of the combined use of functional electrical stimulation (FES) and treadmill training with body weight support (BWS) in walking functions and voluntary limb control in chronic hemiparetic patients. Eight hemiparetic individuals (mean age, 56.6 10.26 years) were evaluated in the present clinical trial. The
Publicado em: 2005
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12. An engineering vector-like approach to attitude kinematics and nominal attitude state tracking control.
In dealing with rigid body three-dimensional rotational motion, one is inevitably led to face the fact that rotations are not vector quantities. They may, however, be treated as such when the angle of rotation is (very) small. In this context, i.e. the infinitesimal case analysis, the time derivatives of the rotation variables hold simple (sometimes vector-l
Publicado em: 2002