一个减少的订单闭环混合动态动态模型,用于设计和开发下肢假肢的设计和开发
Josephus J M Driessen1, Matteo Laffranchi1, Lorenzo De Michieli1
1Rehab Technologies Lab, Istituto Italiano di Tecnologia (IIT), Genoa, Italy.
Wearable technologies
|March 15, 2024
概括
本研究引入了一个简化的动态模型,用于设计下肢假肢. 该框架可实现对假肢和人类相互作用的离线验证,改善控制系统的开发.
科学领域:
- 生物力学 生物力学
- 机器人技术 机器人技术 机器人技术
- 假肢工程 假肢工程
背景情况:
- 开发下肢假体需要有效的模拟工具.
- 目前的方法通常依赖于限制参考轨迹或复杂的神经肌肉骨模型.
- 需要简化但准确的动态模型来设计假肢.
研究的目的:
- 提出一个简化的动态人造假肢模型和模拟框架.
- 为验证闭环假肢行为提供一个离线设计工具.
- 避免依赖有限的动力学/动力学数据和复杂的人类模型.
主要方法:
- 一个缩小序列的多体动态模型,包括假肢和干部.
- 外部力量应用于干部,以模拟完整的腿的存在.
- 弹装载的倒置摆形模型模拟行走动力学.
- 使用带有被动脚假肢的商业和研究膝关节假肢的验证.
主要成果:
- 简化的模型在行走过程中产生了现实的假肢动态.
- 实现了稳定和可修改的步态模式.
- 该框架通过使用涉及站立,以不同速度行走和停止的案例来验证.
- 设计和开发下肢假肢硬件和控制器的可行性.
结论:
- 简化的动态人体假肢模型提供了一个有效的离线设计工具.
- 这种方法有助于验证闭环假肢的行为.
- 该框架支持适应性和可修改的假肢控制器的设计.
- 该模型为假肢开发提供了准确性和计算效率之间的平衡.
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