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相关概念视频

Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

279
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
279
Unsymmetric Bending01:18

Unsymmetric Bending

307
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from those in symmetrical bending, and are essential for designing structures to withstand different loading conditions. In unsymmetrical bending, the neutral axis—where stress is zero—does not necessarily align with the geometric axes of the cross-section. The...
307
Bending01:10

Bending

260
Pure bending is a fundamental concept in structural mechanics, essential for understanding how materials deform under symmetrical loads without direct forces. Pure bending occurs when prismatic members, such as beams, are subjected to equal and opposite moments that induce bending. The phenomenon is crucial as it allows for predicting stress distributions without the influence of axial or shear forces.
In pure bending, the bending stress in a beam is calculated based on the bending moment and...
260

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相关实验视频

Updated: Jun 4, 2025

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors
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全方位曲传感器与可穿戴电子产品的生物向结构

Mengqi Jiang1, Chun Jin1, Ziqian Bai1

  • 1School of System Design and Intelligent Manufacturing, Southern University of Science and Technology, Taoyuan, Shenzhen, 518000 Guangdong, China.

ACS sensors
|December 18, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种全新的全织曲传感器,具有双向性结构,实现0-360°全范围的全向曲传感. 开发的可穿戴电子设备为联合运动监控提供了更高的准确性和舒适性.

关键词:
角度传感器是指一个角度传感器.曲传感器的曲传感器电子织品电子织品的使用运动检测,运动检测检测.全方位的传感传感器可穿戴设备可以穿戴.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 可穿戴电子设备的电子产品
  • 传感器技术 传感器技术

背景情况:

  • 当前曲传感器的传感范围 (0-240°) 和精度有限.
  • 可穿戴电子设备需要先进的传感器来动态监测灵活的物体形态.

研究的目的:

  • 开发一个全织品曲传感器,具有0-360°全范围的全方向传感能力.
  • 为了提高灵活曲传感器的传感范围,精度和佩戴舒适度.

主要方法:

  • 在一个全织品曲传感器设计中引入了一种双热反应结构.
  • 利用数值模拟来阐明传感机制并确定关键因素.
  • 通过针方法制造传感器并分析电机性能.
  • 使用数值计算开发了曲角度和曲方向的识别模型.

主要成果:

  • 实现了0-360°全范围的全向曲传感.
  • 在识别模型中表现出高精度,错误率为2.82%.
  • 在身体关节监测场景中验证了传感器定制和性能.

结论:

  • 生物性回应结构显著提高了曲传感器性能.
  • 与现有技术相比,开发的传感器提供了优越的传感范围,准确性和舒适性.
  • 这种多功能传感器是用于可穿戴关节运动监测和软机器人的传统刚性设备的有希望的替代品.