Rigid Body Dynamics
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. PARAMETERS FOR MODELING PASSIVE SUSPENSIONS OF SPRAY BARS
ABSTRACT The uniformity and quality of spraying depend on the stability of the spray boom, defined as the suspension system between the boom and the machine chassis. This paper presents a procedure for improving the performance of passive spray bar suspensions through parameter adjustment. Two multibody dynamics models of a tractor sprayer set were developed
Eng. Agríc.. Publicado em: 2021-05
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2. Nonlinear optimum model following control of flexible aircraft.
This Doctorate Thesis concerns optimum control of flexible aircraft. Models of a conceptual flexible aircraft are developed for control applications. A general model following problem via output feedback is developed and applied to the conceptual aircraft. The models are determined for 3 aircraft variants with increasing flexibility. The aerodynamics of flex
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2010
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3. Aplicação do método da complementaridade linear para a modelagem de cunhas de atrito de vagões ferroviários / Modeling of friction wedges for railroad vehicles usin the linear complementarity method
Por 150 anos, os truques de três peças têm sido a estrutura padrão para o suporte de eixos e suspensões de trens de carga em diversos países. Embora sua robustez e facilidade de manutenção tenham conservado, em linhas gerais, a disposição e projeto dos componentes, novos requerimentos de carga e velocidade dos trens vêm mudando a forma como os pro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2010
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4. Álgebra geométrica aplicada à simulação de corpos rígidos / Geometric algebra applied to rigid body simulation
Álgebra geométrica é uma ferramenta matemática para formulação e resolução de problemas geométricos, sendo uma alternativa para a álgebra linear classicamente utilizada. Com o intuito de demonstrar a utilidade do formalismo, uma engine física para simulação de corpos rígidos foi desenvolvida. O trabalho apresenta os conceitos de álgebra geomé
Publicado em: 2010
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5. Nonlinear optimum model following control of flexible aircraft.
This Doctorate Thesis concerns optimum control of flexible aircraft. Models of a conceptual flexible aircraft are developed for control applications. A general model following problem via output feedback is developed and applied to the conceptual aircraft. The models are determined for 3 aircraft variants with increasing flexibility. The aerodynamics of flex
Publicado em: 2010
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6. LIBRATION AND TUMBLING OF A RIGID BODY / MOVIMENTO DE ROTAÇÃO SEM RESTRIÇÃO DE UM CORPO RÍGIDO
Um problema bem conhecido da Mecânica Clássica consiste no estudo do movimento de um corpo no espaço, especialmente quando o problema é conservativo e livre de forças. Este trabalho utiliza ferramentas modernas da Dinâmica para interpretar os movimentos com grande amplitude, ultrapassando os limites de estabilidade obtidos pelo conceito de Lyapunov. O
Publicado em: 2010
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7. Ferramenta didática para o ensino de vibrações e de dinâmica em engenharia
This work presents a contribution to the development of a strategy for improve the teaching/learning process in Mechanical Engineering courses. The applied methodology in this strategy was based on three major points: the creation of didactic tool applied to teaching in classes, the application of this tool in a "case test", and evaluation of the methodology
Publicado em: 2009
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8. DESIGN FOR HEALTH / DESIGN PARA SAÚDE
This thesis approaches the transformation of the body deriving as a result of gestures when the use of contemporary objects, focusing predatory the acceleration of relations between man and the environment in their workplaces. The main question raised here is the decline of bodily movements of modern man occidental person with the back drop of the co-evoluti
Publicado em: 2008
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9. Simulation software development for multibody systems / Desenvolvimento de uma ferramenta computacional para simulação de sistemas mecânicos multicorpos
The mathematical simulation is a very important tool to reduce production costs in new projects of agricultural machines. This work consists of a simulation software development for multibody systems (MBS), called FSSM (tool for simulation of mechanical systems), with appropriate functionalities for manufacturers of agricultural machines, using the AutoCAD g
Publicado em: 2008
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10. A methodology and computational system for the simulation of fluid-structure interaction problem
In this paper a flexible finite element computational tool developed to investigate fluid-structure interaction applications in two dimensions is described. We consider problems which can be modelled as a viscous incompressible fluid flow and a rigid body-spring system interacting nonlinearly with each other. The coupling is dealt with the use of an interfac
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-09
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11. 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
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12. A brief review and a new treatment for rigid bodies collision models
In general the motion of a body takes place in a confined environment and collision of the body with the containing wall is possible. In order to predict the dynamics of a body in this condition one must know what happens in a collision. Therefore, the problem is: if one knows the pre-collision dynamics of the body and the properties of the body and the wall
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2001