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Influência do torque e da ciclagem mecânica na manutenção da pré-carga e resistência à fratura de parafusos de retenção em diferentes junções parafusadas
(Universidade Estadual Paulista (Unesp), 2016-06-17)
Sendo o afrouxamento e fratura dos parafusos de retenção as principais complicações em próteses implantossuportadas, este estudo teve como objetivo avaliar a manutenção do torque remanescente e ocorrência de fraturas em ...
Satélites estabilizados por rotação e torque de radiação solar direta
(Universidade Estadual Paulista (Unesp), 2011)
The aims of this work are to analyze the direct solar radiation pressure torque (TPRS) in the rotational motion of spin-stabilized artificial satellites, to numerically implement these solutions and to compare the results ...
Torques, oscillating bodies, hoops
(MIT OpenCourseWare – Massachussetts Institute of Technology, 2016)
Spin stabilized satellite's attitude propagation with quaternions
(2012-07-01)
This paper presents a study of a modeling scheme for the spin stabilized satellites attitude, entirely developed in terms of quaternion parametrization. The analysis includes numerical propagation of the rotational motion ...
Spin stabilized satellite's attitude propagation with quaternions
(2012-07-01)
This paper presents a study of a modeling scheme for the spin stabilized satellites attitude, entirely developed in terms of quaternion parametrization. The analysis includes numerical propagation of the rotational motion ...
Influence of the external torques in the angle between the spin axis and the Sun direction for spin stabilized satellite
(2015-10-07)
The goal of this paper is the study of the influence of the environmental torques in the angle between the spin axis and the Sun direction (solar aspect angle) for spin stabilized satellite. The theory uses a cylindrical ...
Optimal trajectory planning for a redundant mobile manipulator with non-holonomic constraints performing push-pull tasks
(CAMBRIDGE UNIV PRESS, 2008)
This work presents a method to generate optimal trajectories for redundant mobile manipulators based on a weighted function that considers simultaneously joint torques, manipulability and preferred joint angle references. ...
Efeito do recobrimento de filmes de carbono tipo diamante depositados a plasma na manutenção do torque de parafusos protéticos
(Universidade Estadual Paulista (Unesp), 2014-02-05)
Objective: To evaluate the values of reverse torque RT ( % ) of prosthetic screws titanium alloy coated with a film of diamond-like carbon (DLC) and DLC film doped with diamond particles (CD- DLC) comparing them with screws ...
Influence of high insertion torque on implant placement - an anisotropic bone stress analysis
(2010-12-01)
The aim of this study was to evaluate the influence of the high values of insertion torques on the stress and strain distribution in cortical and cancellous bones. Based on tomography imaging, a representative mathematical ...
Influence of high insertion torque on implant placement - an anisotropic bone stress analysis
(2010-12-01)
The aim of this study was to evaluate the influence of the high values of insertion torques on the stress and strain distribution in cortical and cancellous bones. Based on tomography imaging, a representative mathematical ...