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相关概念视频

Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

677
Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...
677
Virtual Work01:20

Virtual Work

1.2K
The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
1.2K

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相关实验视频

Updated: Dec 31, 2025

Mixed Reality for Education MRE Implementation and Results in Online Classes for Engineering
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Published on: June 23, 2023

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在受物理限制的工作场所对象操纵:与扩展现实的远程协作.

Allison Bayro1, Hongju Moon2, Yalda Ghasemi3

  • 1School of Biological Health and Systems Engineering, Arizona State University, Tempe, AZ, USA.

IISE transactions on occupational ergonomics and human factors
|April 2, 2025
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概括

虚拟现实 (VR) 与混合现实 (MR) 相比,增强了远程工作中的存在,并减少了远程工作中的物理压力. 这就是为什么VVR是VVR.

关键词:
虚拟现实虚拟现实就是虚拟现实.混合现实混合现实.生理信号 生理信号存在的存在存在的存在.远程协作 远程协作工作负载的工作负载.

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科学领域:

  • 人与计算机的交互
  • 职业健康 职业健康 职业健康
  • 虚拟现实和混合现实

背景情况:

  • 扩展现实 (XR) 技术为在物理限制的工作场所的远程协作提供了潜力.
  • 评估不同XR模式对用户体验和生理反应的影响对于有效实施至关重要.
  • 了解在VR与MR中的存在,工作量和物理需求之间的权衡对于人体工程设计至关重要.

研究的目的:

  • 研究虚拟现实 (VR) 和混合现实 (MR) 对存在,工作量,对象操纵和生理反应的影响.
  • 为了比较远程协作设置中的VR和MR系统与移动限制.
  • 为XR系统的设计提供信息,以优化生产力和工人福祉.

主要方法:

  • 在模拟远程协作任务中对VR和MR系统进行比较研究.
  • 测量用户的存在感,感知工作量和对象操纵效率.
  • 评估生理反应 (例如,身体应力,疲劳指标).

主要成果:

  • 与MR相比,VR协作显示出更高的存在感和减少的身体运动.
  • 虚拟现实系统,利用诸如远程传输之类的功能,最大限度地降低了物理压力.
  • MR系统导致客观和主观的身体需求增加,这表明疲劳的可能性更大.

结论:

  • 虚拟现实系统可能更适合在物理上受限制的环境中进行远程协作,这是由于增强的存在和减少的物理压力.
  • 虽然MR系统提供了不同的交互可能性,但却对身体提出了更高的要求,需要仔细考虑工人的福祉.
  • 未来的XR系统设计应优先考虑沉浸式协作功能和最小化体力劳动之间的平衡,以确保可持续的职业应用.