基于多种群遗传算法的六自由度机械臂运动学逆解

IF 5.2 2区 计算机科学 Q2 ROBOTICS
Shuhuan Wen, Jiatai Min, Zhanqi Yu, Yunxiao Li, Xin Liu, Hamid Reza Karimi
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引用次数: 0

摘要

与传统的固定构型机械手相比,模块化机械手占用的空间更小,灵活性更强,对各种环境的适应性更强。这些特点使其特别适合在未知环境中运行,如灾难救援和管道检查。提出了一种模块化机械臂的设计方案,并提出了一种基于多种群遗传算法求解6自由度串联机械臂逆运动学问题的新方法。该方法采用实数编码、指数排序选择、简单突变和高斯突变相结合的方法,克服了传统遗传算法(SGA)的高非线性和计算复杂度。这些改进显著提高了算法的收敛速度、精度和鲁棒性,使其适用于复杂的机器人系统。采用Denavit-Hartenberg (D-H)法建立了机械手的正运动学,并利用MPGA优化了逆运动学解。在固定和移动平台上的仿真和实验表明,MPGA在计算效率和求解精度方面具有优越的性能。机械手精确地沿着规划的轨迹运动,验证了该方法的有效性。该研究为高自由度机械臂的逆运动学提供了一种新颖而有效的解决方案,为各种机器人系统提供了潜在的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Multiple Population Genetic Algorithm-Based Inverse Kinematics Solution for a 6-DOF Manipulator

Multiple Population Genetic Algorithm-Based Inverse Kinematics Solution for a 6-DOF Manipulator

Compared to traditional fixed configuration manipulators, modular manipulators occupy less space, offer greater flexibility, and demonstrate stronger adaptability to diverse environments. These characteristics make them particularly suitable for operating in unknown environments, such as disaster rescue and pipeline inspection. This paper presents the design of a modular robotic arm and proposes a novel approach to solving the inverse kinematics problem for a 6-DOF (degree of freedom) tandem manipulator using a Multi-population Genetic Algorithm (MPGA). The proposed method overcomes the high nonlinearity and computational complexity of traditional genetic algorithms (SGA) by incorporating real-number encoding, Exponential Ranking Selection, and a combination of Simple and Gaussian mutations. These improvements significantly enhance the algorithm's convergence speed, accuracy, and robustness, making it suitable for complex robotic systems. The manipulator's forward kinematics is established using the Denavit-Hartenberg (D-H) method, and the MPGA optimizes the inverse kinematics solution. Simulations and experiments on both fixed and mobile platforms demonstrate the MPGA's superior performance in terms of computational efficiency and solution accuracy. The manipulator accurately followed the planned trajectory, validating the method's effectiveness. This study provides a novel and efficient solution for inverse kinematics in high-DOF manipulators, offering potential applications across various robotic systems.

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来源期刊
Journal of Field Robotics
Journal of Field Robotics 工程技术-机器人学
CiteScore
15.00
自引率
3.60%
发文量
80
审稿时长
6 months
期刊介绍: The Journal of Field Robotics seeks to promote scholarly publications dealing with the fundamentals of robotics in unstructured and dynamic environments. The Journal focuses on experimental robotics and encourages publication of work that has both theoretical and practical significance.
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