Dynamics modeling of a 2-DoFs cable-driven continuum robot

Author:

Bousbia Leila,Amouri Ammar,Cherfia Abdelhakim

Abstract

Purpose Continuum robots modeling, be it from a hard or soft class, is giving rise to several challenges compared with rigid robots. These challenges are mainly due to kinematic redundancy, dynamic nonlinearity and high flexibility. This paper aims initially at designing a hard class of continuum robots, namely, cable-driven continuum robot (CDCR) and equally at developing their kinematic and dynamic models. Design/methodology/approach First, the CDCR prototype is constructed, and its description is made. Second, kinematic models are established based on the constant curvature assumption and inextensible bending section. Third, by using the Lagrange method, the dynamic model is derived under some simplifications and based on the kinematic equations, in which the flexible backbone’s elasticity modulus was identified experimentally. Finally, the static model of the CDCR is also derived based on the dynamic model. Findings Numerical examples are carried out using Matlab software to verify the static and dynamic models. Moreover, the static model is validated by comparing the simulation’s results to the real measurements that have been provided with satisfactory results. Originality/value To reduce the complexity of the dynamic model’s expressions and avoid the numerical singularity when the bending angle is close to zero, some simplifications have been taken, especially for the kinetic energy terms, by using the nonlinear functions approximation. Hence, the main advantage of this analytical-approximate solution is that it can be applied in the bending angle that ranges up to 2p with reasonable errors, unlike the previously proposed techniques. Furthermore, the resulting dynamic model has, to some extent, the proprieties of simplicity, accuracy and fast computation time. Ultimately, the obtained results from the simulations and real measurements demonstrate that the considered CDCR’s static and dynamic models are feasible.

Publisher

Emerald

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

Reference34 articles.

1. Dynamic modeling of a spatial cable-driven continuum robot using Euler-Lagrange method;International Journal of Engineering and Technology Innovation,2020

2. Dynamic modeling of a class of continuum manipulators in fixed orientation;Journal of Intelligent & Robotic Systems,2018

3. A metaheuristic approach to solve inverse kinematics of continuum manipulators;Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering,2017

4. Modeling and control of a hybrid continuum active catheter for aortic aneurysm treatment,2005

5. Continuum robots for medical applications: a survey;IEEE Transactions on Robotics,2015

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