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相关概念视频

Virtual Work for a System of Connected Rigid Bodies01:06

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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.
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Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
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在OpenSim中创建模拟环境的第一步,为新型软机器人外骨架设计控制方法.

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    这项研究开发了一种柔软的外骨架,以帮助患有脑性麻的个体,特别是. 模拟结果显示,外骨可以达到与物理原型质量相似的行为,改善移动性和融合.

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    科学领域:

    • 康复工程 康复工程 康复工程
    • 生物医学工程 生物医学工程
    • 辅助技术 辅助技术 辅助技术

    背景情况:

    • 运动协调障碍,包括脑性麻和,显著损害运动功能和日常活动.
    • 肌痛症的特点是肌肉度不自发的波动和平衡困难,需要专门的支持.
    • 目前的干预措施旨在改善运动控制,促进融入社会和职业生活.

    研究的目的:

    • 开发柔软的外骨架,以提高脑性麻患者的生活质量,特别是那些患有耳症的人.
    • 研究外骨发育的模拟阶段,支持代物理设计.
    • 评估不同的控制方法和模拟模型对外骨的有效性.

    主要方法:

    • 用三种不同的运动数据源进行模拟.
    • 开发了物理外骨架的整体和部分 (减少自由度) 模拟模型.
    • 在模拟环境中研究了两种不同的控制方法.

    主要成果:

    • 在模拟和物理外骨架原型之间实现了质量上类似的行为.
    • 模拟阶段为物理设计的代改进提供了宝贵的见解.
    • 证明了外骨在支持运动功能和精确运动方面的潜力.

    结论:

    • 软外骨架的模拟显示出有希望的结果,反映了物理原型的当前能力.
    • 这项研究支持代开发过程,这对于推进辅助技术至关重要.
    • 开发出来的外骨有可能改善运动障碍患者的流动性和整合性.