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Finite Element Euler-Lagrange Dynamic Modeling and Passivity Based Control of Flexible Link Robot

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Proceedings of the International Conference on Artificial Intelligence and Computer Vision (AICV2021) (AICV 2021)

Abstract

In this paper, a novel passivity-based controller for flexible links robotic mechanisms is proposed. Something that is a substantial contribution to the field is that the dynamic model of two degrees of robotic freedom mechanism is proposed considering, that in this case, a suitable shaping function is implemented in FEM derivations. Along with the Euler-Lagrange method, the two-links robot’s dynamic model is obtained considering the transformation matrices’ with appropriate derivations to obtain the robot’s kinematic angular velocity vectors to get the desired dynamic model. It is essential to consider that the joints’ rotating angles are calculated appropriately by obtaining the node vectors of the FEM derivations when a flexion occurs on each link of the robotic manipulator and obtaining the node vectors about the original coordinate axis. A passivity-based controller is then designed to drive the joint angles and joint velocities to the equilibrium in finite time. Thus, due to the energy considerations of the proposed passivity-based controller, the system’s energy dissipation is ensured.

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Correspondence to Ahmad Taher Azar .

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Azar, A.T. et al. (2021). Finite Element Euler-Lagrange Dynamic Modeling and Passivity Based Control of Flexible Link Robot. In: Hassanien, A.E., et al. Proceedings of the International Conference on Artificial Intelligence and Computer Vision (AICV2021). AICV 2021. Advances in Intelligent Systems and Computing, vol 1377. Springer, Cham. https://doi.org/10.1007/978-3-030-76346-6_41

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