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相关概念视频

Rolling Resistance: Problem Solving01:17

Rolling Resistance: Problem Solving

267
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
267
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

434
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
434
Rolling Resistance01:21

Rolling Resistance

239
When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down...
239

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相关实验视频

Updated: May 8, 2025

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot
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空中轨道引导的自主软环机器人

Fangjie Qi1, Caizhi Zhou1, Haitao Qing1

  • 1Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, 27695, USA.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|April 25, 2025
PubMed
概括
此摘要是机器生成的。

一个自主软机器人使用恒定光线在3D轨道上导航. 这种扭曲的环形机器人,灵感来自空中电车,通过绕着线索曲,克服障碍物和承载重物,以线性移动.

关键词:
液晶弹性体的液晶弹性体.软机器机器软机器 软机器机器

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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 材料科学 材料科学 材料科学
  • 软机器人软机器人 软机器人软机器人

背景情况:

  • 软机器人在复杂的环境中提供了独特的优势,因为它们的灵活性.
  • 在3D空间中精确的运动控制仍然是软机器人系统的重大挑战.
  • 现有的软机器人往往需要复杂的时空控制操作源的导航.

研究的目的:

  • 开发一个自主软机器人,能够在3D空间中导航预定义的轨道.
  • 为了实现运动控制,使用恒定的光热驱动,而无需复杂的外部控制.
  • 为了证明机器人的适应性和在各种轨道上承载能力.

主要方法:

  • 从液晶弹性体制造一个柔软的扭曲环机器人.
  • 使用恒定红外光进行光热启动,诱导自转动.
  • 采用螺丝理论将旋转运动转化为沿着线程轨道的线性运动.

主要成果:

  • 软环机器人在不断的光热驱动下自主导航各种3D轨道 (圆形,多角形,螺旋形).
  • 机器人展示了障碍物谈判 (例如,节点) 和上升/下降坡 (高达80°) 的能力.
  • 机器人成功地运输了超过自身重量的12倍的负载,并适应了各种材料和尺寸的轨道.

结论:

  • 开发的软扭环机器人为3D环境提供了一种新的自主移动策略.
  • 光热驱动和基于螺丝的机制提供了强大的和可适应的导航能力.
  • 这种方法克服了复杂的控制系统的局限性,并展示了多功能软机器人应用的潜力.