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NIOSH提升方程

1991
  • National Institute for Occupational Safety and Health (NIOSH)
Occupational health professional demonstrating NIOSH Lifting Equation in industrial setting.

(图片仅供参考)

这 美国国家职业安全与健康研究所 (NIOSH) lifting equation is a tool used by occupational health and safety professionals to assess the risk of musculoskeletal injury associated with manual lifting tasks. It calculates a Recommended Weight Limit (RWL) for a specific task, representing the maximum weight a healthy worker could lift without increased risk of low back injury, considering factors like task geometry and frequency.

The revised NIOSH lifting equation from 1991 provides a more comprehensive 风险评估 than its 1981 predecessor. The core of the method is the calculation of the Recommended Weight Limit (RWL) using the formula: [latex]RWL = LC \times HM \times VM \times DM \times AM \times FM \times CM[/latex]. In this formula, LC is the Load Constant (51 lbs or 23 kg), which is the maximum recommended weight under ideal conditions. The other terms are multipliers, each with a value between 0 and 1, which reduce the allowable weight based on deviations from these ideal conditions. These multipliers are: HM (Horizontal Multiplier), VM (Vertical Multiplier), DM (Distance Multiplier), AM (Asymmetric Multiplier), FM (Frequency Multiplier), and CM (Coupling Multiplier). For example, the further an object is held from the body (increasing the horizontal distance), the smaller the HM value becomes, thus lowering the RWL. The equation also allows for the calculation of a Lifting Index (LI), where [latex]LI = \frac{Load Weight}{RWL}[/latex]. An LI greater than 1.0 indicates that the task is high-risk for some fraction of the workforce, and redesign should be prioritized. An LI of 3.0 or more is considered highly hazardous. The equation is a cornerstone of physical 人体工程学, providing a quantitative, evidence-based method for evaluating and mitigating one of the most common causes of workplace injury.

UNESCO Nomenclature: 3307
– Industrial engineering

类型

抽象系统

中断

Incremental

用法

广泛使用

前体

  • 腰椎生物力学模型
  • 流行病学研究将手动举重与腰痛联系起来
  • 最大可接受重量的心理物理学研究
  • 1981 年原版 NIOSH 起重指南
  • 静态强度预测模型

应用程序

  • 工作 hazard analysis in manufacturing and logistics
  • 重新设计工作站以降低起重风险
  • 制定工作场所安全标准和法规
  • 手动物料搬运培训计划
  • 受伤员工的康复和重返工作计划

专利:

NA

潜在创新理念

  • 使用计算机视觉自动估计提升方程参数的智能手机应用程序
  • wearable sensor suits that calculate the lifting index in real-time during a work shift
  • 将 NIOSH 方程式集成到仓库管理软件中,以标记有风险的码垛任务
  • 外骨骼 control systems that provide assistive force based on the calculated rwl
  • 虚拟现实训练模块,用户可以体验不良举重技术对其力值的影响
  • 人工智能驱动的工作轮换调度程序,可最大限度地减少每个工人的累积举重压力
  • 3D打印、特定任务的提升辅助工具,旨在提高耦合乘数(厘米)
  • 为管理人员提供符合人体工程学的仪表板,实时显示整个设施的提升风险
  • 自动接管被认定为具有高起重指数的任务的机器人系统
  • crowdsourced databases of lifting tasks and their associated risk factors to refine the equation’s multipliers
相关内容:NIOSH、举重方程、RWL、推荐重量限制、肌肉骨骼损伤、职业安全、生物力学、人工搬运、风险评估、人体工程学。

历史背景

NIOSH提升方程

1990
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1991
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1990
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1990
1992
1992
1993-07-22
1996

(如果日期未知或不相关,例如“流体力学”,则提供其显著出现的近似估计)

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