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Related Concept Videos

Virtual Work01:20

Virtual Work

897
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...
897
Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

437
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,...
437
Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

1.2K
The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
1.2K

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Mixed Reality for Education MRE Implementation and Results in Online Classes for Engineering
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Teaching Social Virtual Reality With Ubiq.

Sebastian Friston, Ben Congdon, Anthony Steed

    IEEE Computer Graphics and Applications
    |April 4, 2023
    PubMed
    Summary
    This summary is machine-generated.

    We developed Ubiq, an open-source social virtual reality (VR) system, to address the need for better research and teaching tools. Our experiences show its effectiveness in virtual environments education.

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    Area of Science:

    • Computer Science
    • Human-Computer Interaction
    • Virtual Reality

    Background:

    • Social virtual reality (VR) is increasingly relevant for online and hybrid teaching.
    • Existing commercial VR systems are often unsuitable for research and education.
    • There is a growing demand for accessible VR platforms for academic purposes.

    Purpose of the Study:

    • To introduce Ubiq, an open-source social VR system designed for research and teaching.
    • To share practical experiences of using Ubiq in a virtual environments module.
    • To highlight the potential of custom-built VR systems in education.

    Main Methods:

    • Development of Ubiq, an open-source social VR system.
    • Implementation of Ubiq in a university virtual environments module.
    • Two years of practical application and evaluation of the system in an academic setting.

    Main Results:

    • Ubiq provides a flexible platform for social VR applications tailored to research and teaching needs.
    • The system has been successfully used in a virtual environments module for two years.
    • Teaching experiences indicate Ubiq's suitability for exploring various aspects of VR.

    Conclusions:

    • Ubiq is a viable open-source solution for social VR in research and education.
    • The system facilitates the exploration of virtual reality concepts, including perception and human-computer interaction.
    • Further development and adoption of Ubiq can enhance VR education and research.