一个6轴混合机器人的摩擦补偿方法,考虑联合惯性变化
Qi Liu1,2, Sitong Shen1,2, Yue Ma1,2
1Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin 300384, China.
iScience
|April 14, 2025
概括
这项研究通过结合关节惯性变化来增强机器人的摩擦补偿. 新方法提高了跟踪精度,特别是在高惯性配置中.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 机械工程 机械工程
- 控制系统 控制系统
背景情况:
- 摩擦显著影响机械系统的性能.
- 精确的摩擦补偿对于精确的机器人运动至关重要.
- 传统模型往往忽略了诸如惯性变化的动态变化.
研究的目的:
- 为6轴混合机器人 (TriMule) 开发一种有效的摩擦补偿方法.
- 为了解决改变关节惯性对摩擦补偿的影响.
- 为了提高不同惯性条件下的机器人系统的追踪精度.
主要方法:
- 在斯特里贝克摩擦模型中引入了联合惯性条款.
- 开发了一种改进的补偿方法,使用辐射基函数插值.
- 通过对TriMule机器人原型的实验验证实了这一方法.
主要成果:
- 拟议的摩擦补偿方法有效考虑了关节惯性变化.
- 使用辐射基函数插值的方法提供了简化的计算.
- 实验结果表明,在高惯性配置下,跟踪精度提高了高达25.73%.
结论:
- 考虑关节惯性变化对于先进的摩擦补偿至关重要.
- 提出的方法为机器人系统提供了一个实用和有效的解决方案.
- 这项工作有助于提高机器人应用中的精度和性能.
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