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相关概念视频

Method of Joints: Problem Solving II01:30

Method of Joints: Problem Solving II

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Consider a truss structure with frictionless joints fixed to a wall and roller support. If a force of 150 N is applied to joint A, the forces in each member of the truss can be determined using the method of joints.
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Support Reactions in Three Dimensions01:27

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Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is...
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Method of Joints: Problem Solving I01:30

Method of Joints: Problem Solving I

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The method of joints is a commonly used technique to analyze the forces in structural trusses. The method is based on the principle of equilibrium, which assumes that the truss members are connected by frictionless pins. The forces at each joint can be determined by considering the equilibrium of the forces acting on that joint. Consider a truss structure with two forces of 20 N and 10 N acting at joints C and D, respectively. The method of joints can be used to determine the forces FCB, FDC,...
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相关实验视频

Updated: Feb 27, 2026

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
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一个优化方法,一个活跃的多单元假肢插座与动态适应性在多任务场景的优化方法.

Yawen Hu1, Li Jiang1, Chunying Zou2

  • 1State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150008, China.

Biomimetics (Basel, Switzerland)
|February 26, 2026
PubMed
概括
此摘要是机器生成的。

这项研究介绍了一种智能设计,用于活跃的上肢假肢插座,优化舒适性和稳定性. 新设计平衡了压力分布和适应性,以获得更好的假肢性能.

关键词:
人造肢体的人造肢体生物机械现象 生物机械现象优化的优化优化优化.假肢的接口是假肢的接口

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相关实验视频

Last Updated: Feb 27, 2026

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科学领域:

  • 生物医学工程 生物医学工程
  • 康复工程 康复工程 康复工程
  • 假肢和整形手术

背景情况:

  • 假肢插座的适应性对于性能,舒适性和安全性至关重要.
  • 传统的插座表现出不良的压力分布,空气透性和适应性.
  • 个体残余四肢形态对插座设计提出了挑战.

研究的目的:

  • 为活跃的上肢假肢套套提供一个智能,生理适应的最佳设计.
  • 为了提高插座适应多任务场景的适应性.
  • 为了提高假肢插座的舒适性和稳定性.

主要方法:

  • 在假肢操纵任务中使用多接触装置的动力力优化算法.
  • 生物机械实验以确定前臂软组织的疼痛值分布.
  • 在各种任务场景下使用舒适度指数 (峰值/平均正常力,力分布变异) 评估套接头结构的机械性能.

主要成果:

  • 拟议的活性多单元插座设计优化了输出力,以保持稳定的悬挂和最小的接口压力.
  • 生物力学数据根据疼痛值决定了接触单位的空间布局.
  • 双层的八个单位对称的辐射分层配置展示了舒适性和稳定性之间的平衡.

结论:

  • 基于智能生理适应的设计方法为自适应性假肢插座提供了有效和可扩展的范式.
  • 优化的活跃多单元插座可提高用户的舒适度和在各种任务中增强假肢的稳定性.
  • 这种方法解决了传统假肢插座的局限性,以改善长期使用.