基于虚拟人类的全身静态生物机械模型研究
Zheng Cheng1,2, Bin Luo1, Chuan Chen1
1Institute of Computer Application, China Academy of Engineering Physics, Mianyang 621900, China.
Sensors (Basel, Switzerland)
|October 26, 2024
概括
这项研究开发了一种全身静态生物机械模型,用于虚拟人体人体工程学分析. 该模型准确地预测了关节和手部负荷,强调了工作姿势在防止物料处理过程中骨受伤方面的关键作用.
科学领域:
- 人体工程学就是人体工程学.
- 生物力学 生物力学
- 职业安全 在职业安全.
背景情况:
- 材料处理任务对工人造成骨损伤的风险很大.
- 虚拟人体模型对于分析提升过程中的人为因素至关重要.
研究的目的:
- 开发和验证一个全身静态生物力学模型,用于虚拟人体人体工程学分析.
- 调查工作姿势在起重任务期间对生物力学负荷的影响.
主要方法:
- 构建全身静态生物机械模型,以计算关节力,动量和手负荷.
- 开发一个与惯性运动捕获系统集成的原型模型测试系统.
- 设计可靠性验证和应用模拟实验.
主要成果:
- 开发的模型证明了与工业人体工程学软件的一致性,证实了其可靠性.
- 模拟结果表明,工作姿势和最大的关节/手负荷之间存在很强的相关性.
- 前臂和上臂延伸显著降低了手的负载能力,而腿部姿势的影响较小.
结论:
- 优化工作姿势对于适应负载和最大限度地减少生物力学压力至关重要.
- 经过验证的模型作为一种可靠的工具,用于在物料处理中进行虚拟人体人体工程学分析.
- 了解生物力学负载决定因素有助于设计更安全的工作实践和预防伤害.
相关概念视频
01:20Virtual Work
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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...
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...
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01:06Virtual Work for a System of Connected Rigid Bodies
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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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