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We present the analysis of the planar manipulandum effects to the trajectory of point to point movements in horizontal plane. This analysis is of significance for the control of a haptic robot that can be used for the rehabilitation of hemiplegic patients. The effects were assessed by comparing data collected in experiments with healthy subjects when performing simple movements that are used in the...
For robotic manipulation tasks in uncertain environments, good force control can provide significant benefits. The design of force or torque controlled actuators typically revolves around developing the best possible software control strategy. However, the passive dynamics of the mechanical system, including inertia, stiffness, damping and torque limits, often impose performance limitations that cannot...
In this paper, Artificial Neural Networks (ANN) has been used to identify the dynamics of robots used in haptic and master slave devices in order to improve transparency. In haptic and master slave devices, transparency depends on some factors such as robot's mass and inertia, gravitational forces and friction [1]. In such systems, mass and inertia of the robot has an undesirable effect on the system...
This paper presents a novel simulation tool for structural analysis of a delta robot using SOLID EDGE and ANSYS 11 that allows optimization of the robot's mechanical structure as regards to materials, geometry and manufacture costs. To develop this simulation tool, a three-dimensional model of the delta robot was obtained through SOLID EDGE, and trajectory analysis was carried out, resulting in selection...
Disk synchronous motors (DSM) are the preferred actuators in the robotic field due to their high specific torque, low inertia, and short length of the shaft. In this paper, static and dynamic stability during operation of permanent magnet (PM) disk synchronous motors are analyzed. The equivalent circuits of the DSM are reported and the determination of the relative parameters are discussed. Simulation...
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