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Makine Mühendisliği Bölümü

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Browsing Makine Mühendisliği Bölümü by Journal "Advanced Robotics"

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    Article
    Citation - WoS: 4
    Citation - Scopus: 4
    Hybrid Force and Motion Control of Flexible Joint Parallel Manipulators Using Inverse Dynamics Approach
    (Taylor & Francis Ltd, 2014) Ider, S. Kemal; Korkmaz, Ozan; 108608
    An inverse dynamics control algorithm is developed for hybrid motion and contact force trajectory tracking control of flexible joint parallel manipulators. First, an open-tree structure is considered by the disconnection of adequate number of unactuated joints. The loop closure constraint equations are then included. Elimination of the joint reaction forces and the other intermediate variables yield a fourth-order relation between the actuator torques and the end-effector position and contact force variables, showing that the control torques do not have an instantaneous effect on the end-effector contact forces and accelerations because of the flexibility. The proposed control law provides simultaneous and asymptotically stable control of the end-effector contact forces and the motion along the constraint surfaces by utilizing the feedback of positions and velocities of the actuated joints and rotors. A two degree of freedom planar parallel manipulator is considered as an example to illustrate the effectiveness of the method.