用于内镜外科手术的电缆支柔性操纵器的刚度优化和动力学建模
Yanqiang Lei1,2,3, Fuxin Du2, Wenbo Zheng1
1School of Automation and Electrical Engineering, Linyi University, Linyi, Shandong, China.
概括
这项研究引入了一种度优化的电缆立孔操纵器 (CSNM),以克服电缆驱动连续机器人的灵活性-度权衡. 优化的CSNM显示了100%的负载能力增加,使其适用于苛刻的应用.
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
- 材料科学 材料科学 材料科学
背景情况:
- 电缆驱动的连续机器人显示了硬度和灵活性之间的基本权衡.
- 提高刚性是开发这些机器人用于先进应用的重大挑战.
研究的目的:
- 介绍一款创新的度优化的电缆停留口操纵器 (CSNM).
- 为了应对电缆驱动连续机器人的硬度增强的关键挑战.
主要方法:
- 利用伯努利-欧勒束理论用于弹性束 (EB) 变形建模和刚度优化.
- 在基于肌长度的动力学建模中采用了简化的断片式恒定曲率假设.
- 实施了基于进化的EB优化算法,以实现统一的应力分布和提高负载能力.
主要成果:
- 优化的操纵器表现出最大弹性束曲角度偏差为0.5°.
- 在x轴上达到0.21mm,在y轴上达到0.32mm的最大运动误差.
- 由于均的应力分布,显示了100%的负载能力增加.
结论:
- 通过实验结果验证了CSNM的结构优化和动力学建模.
- CSNM显示出对需要高灵活性和大量负载能力的内镜应用的巨大潜力.
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