This paper presents a generalized flexible Hybrid Cable-Driven Robot (HCDR). For the proposed HCDR, the derivation of the equations of motion and proof provide a very effective way to find items for generalized system modeling. The proposed dynamic modeling approach avoids the drawback of traditional methods and can be easily extended to other types of hybrid robots such as a robot arm mounted on an aircraft platform. Additionally, another goal of this paper is to develop integrated control systems to reduce vibrations and improve the accuracy and performance of the HCDR. To achieve this goal, redundancy resolution, stiffness optimization, and control strategies are studied. The proposed optimization problem and algorithm address the limitations of existing stiffness optimization approaches. Three types of control architecture are proposed and their performances (i.e., reducing undesirable vibrations and trajectory tracking errors, especially for the end-effector) are evaluated using several well-designed case studies. Results show that the fully integrated control strategy can improve significantly the tracking performance of the end-effector.
翻译:本文件介绍了一个通用的灵活混合式可驱动机器人(HCDR)。对于拟议的HCDR, 运动和证据方程式的衍生为寻找通用系统模型项目提供了非常有效的方法。拟议的动态模型方法避免了传统方法的退步,可以很容易地推广到其他类型的混合机器人,例如机平台上安装的机器人臂。此外,本文件的另一个目标是开发综合控制系统,以减少振动,提高HCDR的准确性和性能。为了实现这一目标,研究了冗余分辨率、僵硬性优化和控制战略。拟议的优化问题和算法解决了现有硬性优化方法的局限性。提出了三种类型的控制结构,其性能(即减少不可取的振动和轨迹跟踪错误,特别是对终端效应器而言)正在通过若干精心设计的案例研究进行评估。结果显示,完全一体化的控制战略能够大大改进终端效应器的跟踪性能。