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- WinRob: An educational program for roboticsPublication . Tenreiro Machado, J. A.; Galhano, AlexandraThe paper presents a program for robotics education that runs on standard IBM-PC's under Microsoft Windows environment. The WinRob package is designed for undergraduates students and emphasis the aspect of robot modelling and control. The software is self-explanatory and uses menus, dialog boxes with figures and context-dependent on-line help. In this perspective, students are motivated to investigate on the kinematics, dynamics, trajectory planning and control in order to get insight into robotics.
- Kinematic Robutness of Manipulating SystemsPublication . Galhano, Alexandra; Tenreiro Machado, J. A.Present day mechanical manipulators have poor performances when compared with the human arm. In fact, joint-driven manipulators are not efficient due to the high actuator requirements imposed by the transients of the operational tasks. muscle-actuated arms are superior because the anatomic levers adapt the manipulating exigences to the driving linear actuators. The kinematic analysis of these systems highlights its main properties and constitutes a step towards the design of new mechanical biological-like robotic structures adopting linear actuators replacing the standard rotational joint-driving motor systems.
- Statistical analysis of muscle-actuated manipulatorsPublication . Galhano, Alexandra; Tenreiro Machado, J. A.; Carvalho, J. L. Martins deJoint-actuated robots have poor performances due to the high requirements imposed by the transients of the operational tasks. Muscle-actuated arms are superior because the anatomic levers adapt the manipulating exigencies to the driving actuators, The statistical analysis of these systems highlights its main properties and constitutes a step towards the design of new mechanical biological-like robotic structures.
- Embedding statistics and Fourier transform towards the harmonic modelling of robot manipulatorsPublication . Tenreiro Machado, J. A.; Galhano, AlexandraA new approach to the analysis and design of robot manipulators is presented. The novel feature resides on a non-standard formulation to the modelling problem. Usually, system descriptions are based on a set of differential equations which, in general, require laborious computations and may be difficult to analyse. These facts motivate the need of alternative models based on different mathematical concepts. The proposed statistical approach to the Fourier modelling gives clear guidelines towards the optimisation of the robot kinematics and point out structural characteristics of the trajectory planning algorithms.
- On the statistical analysis of biomechanical armsPublication . Galhano, Alexandra; Carvalho, J. L. Martins de; Tenreiro Machado, J. A.Standard joint-actuated manipulators have poor performances due to the high requirements imposed by the transients of the operational tasks. Muscle-actuated arms are superior because the anatomic levers adapt the manipulating requirements to the actuators. The statistical analysis of thes systems highlights its main properties and cosntitutes a step towards the design of new mechanical robotic structures, with performances closer to the biological arms.
- A program for teaching the fundamentals of robot modelling and controlPublication . Tenreiro Machado, J. A.; Galhano, AlexandraThe paper presents a program for robotics education that runs on standard IMB-PC's under the Microsoft Windows environment. The program WinRob is designed for undergraduate students and emphasises the aspect of robot modelling. The software is self-explanatory and uses menus, dialog boxes with figures and context-dependent on-line help. In this perspective, students are motivated to investigate on the kinematics, dynamics, trajectory planning and control in order to get insight into robotics.