对于圆心推拉机器人的动静态模型
1EndoTheia, Inc., Nashville, TN.
概括
这项研究介绍了同心推拉机器人 (CPPR) 的新模型,它可以准确预测它们的3D形状,即使有多个管道,扭力和外部力. 这种先进的建模增强了CPPR的设计和控制.
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
- 应用物理 应用物理
背景情况:
- 集中式推拉机器人 (CPPR) 使用嵌套的激光切割管,具有偏移的刚度中心来执行.
- 现有的CPPR动力模型是有限的,假设只有两个管,平面配置,并忽略扭力和外部负载.
- 这些局限性阻碍了更复杂的CPPR设计的开发和应用.
研究的目的:
- 为集中式推拉机器人 (CPPRs) 开发一个通用的运动静止模型.
- 新的模型可以考虑任意数量的管,可变曲率,3D形状,扭力和外部负荷.
- 为了实现CPPR的先进设计,规划和控制.
主要方法:
- 在每个嵌套管中使用修改后的Kirchhoff棒模型,并结合了偏移的刚度中心.
- 集成的约束,以保持管道之间的度.
- 利用一种能量方法,根据执行输入和外部力量推导出机器人的形状.
主要成果:
- 开发并验证了CPPRs的新型,通用化的动静态模型.
- 使用具有可变刚度和曲率的两管和三管原型的实验结果显示,与模型有很强的一致性.
- 该模型准确地预测了CPPR在各种条件下的3D形状,包括扭力和外部负荷.
结论:
- 开发的通用运动静止模型显著提升了CPPR的能力.
- 该模型为优化CPPR设计,改进运动规划和增强控制策略提供了基础.
- 它为集中式推拉机器人的更复杂和多功能应用铺平了道路.
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