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相关概念视频

Support Reactions in Three Dimensions01:27

Support Reactions in Three Dimensions

885
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...
885
Deformation in a Circular Shaft01:10

Deformation in a Circular Shaft

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One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
262
Transformation of Plane Stress01:18

Transformation of Plane Stress

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Studying stress transformation is essential in understanding how stress components within a material, like a cube under plane stress, change with rotation. This change is analyzed by considering a prismatic element within the cube. As the element rotates, the stress components acting on it—both normal and shearing stresses—change in magnitude and orientation. This change is quantified using trigonometric functions of the rotation angle, relating the forces acting on the rotated element's...
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相关实验视频

Updated: Jun 2, 2025

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
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使用基于kirigami的肩部贴片识别内部和外部肩部旋转.

Amani A Alkayyali1, Conrad P F Cowan2, Callum J Owen3

  • 1College of Engineering, University of Michigan, Ann Arbor, MI, USA.

Wearable technologies
|January 15, 2025
PubMed
概括
此摘要是机器生成的。

一个新的可穿戴传感器,灵感来自kirigami,准确地测量肩膀旋转. 该设备提供了一个成本效益高且实用的解决方案,用于在临床环境中量化内部和外部肩部旋转.

关键词:
生物力学 生物力学生物机械学是生物机械学.嵌入式电子设备 嵌入式电子设备监控器 监控器 监控器传感器 传感器 传感器

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科学领域:

  • 生物力学 生物力学
  • 可穿戴技术是可穿戴的技术.
  • 整形外科 整形外科 整形外科

背景情况:

  • 在临床环境中量化肩部内部和外部旋转是具有挑战性的.
  • 现有的方法,如移动捕捉,是昂贵的和耗时的.
  • 调查和模拟工具缺乏客观的测量,容易被解释.

研究的目的:

  • 评估一种新的可穿戴传感器系统,用于监测肩膀的内部和外部旋转.
  • 评估传感器在肩膀运动期间区分动力学差异的能力.
  • 将传感器应用于健康个体,以验证其性能.

主要方法:

  • 开发了一种以kirigami为灵感的可穿戴传感器,配有四个张力计.
  • 17名健康参与者在肩膀运动时佩戴传感器.
  • 一维统计参数映射分析了旋转之间的应变电压差异.

主要成果:

  • 传感器系统成功地检测到内部和外部肩膀旋转之间的明显差异.
  • 在四个张力测量仪中,有三台显示出显著的时间差异 (p < .047).
  • 特别有效的是距离或后部放置的张力计.

结论:

  • 灵感来自kirigami的可穿戴传感器可以有效地测量肩膀的旋转.
  • 这项技术为肩膀动力学评估提供了一个有希望的,非侵入性的方法.
  • 该传感器为肩膀旋转监测提供了临床上显著的进步.