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Updated: Jan 28, 2026

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假肢中的生物技术:生物启发的肩肘假肢的多目标优化与嵌入式执行
Jingxu Jiang1, Gengbiao Chen2, Xin Wang2
1International College of Engineering, Changsha University of Science and Technology, Changsha 410114, China.
Biomimetics (Basel, Switzerland)
|January 27, 2026
概括
这项研究引入了一种具有先进肩膀和肘部关节的新型生物体假肢系统,提高了上肢假肢的灵巧性和工作空间. 该设计增强了用户体验,并降低了可穿戴机器人中的废弃率.
科学领域:
- 生物医学工程 生物医学工程
- 机器人技术 机器人技术 机器人技术
- 生物力学 生物力学
背景情况:
- 上肢假肢面临的挑战包括有限的灵巧性,有限的工作空间和体积,导致高用户放弃.
- 靠近关节的限制 (肩膀,肘部) 显著影响假肢功能和用户满意度.
研究的目的:
- 开发一种新的,生物启发的,综合的假肢系统,以克服上肢假肢现有的局限性.
- 通过先进的关节机制和优化技术来提高假肢性能.
主要方法:
- 设计了一个使用不对称的3-RRR球形平行机制 (SPM) 嵌入式执行器的肩膀关节.
- 开发了一种由低压形状记忆合金 (SMA) 弹驱动的肘部关节.
- 利用多目标粒子群集优化 (MOPSO) 来优化工作空间,灵巧性和关节扭矩.
主要成果:
- 实现了85%的自然肩部工作空间覆盖率.
- 在40N负荷下,具有最高Mises应力3.4MPa的结构完整性.
- 在6V和6°/s的SMA驱动肘部获得了0.2秒以下的响应时间,验证了光滑的人形运动.
结论:
- 开发的假肢系统为上肢假肢提供了一种轻量级,高性能的解决方案.
- 这个框架为下一代可穿戴机器人和生物设备奠定了基础.
- 未来的工作将整合神经接口用于直观的假肢控制.
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