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Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
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一个概率的图形模型基础,使得数字双胞胎能够在规模上进行预测.

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  • 1Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA, USA.

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本研究介绍了一个统一的数学框架,使用可扩展数字双胞胎的概率图形模型. 这种方法可以为各种应用,包括无人驾驶飞行器,实现可靠,原则性校准和更新.

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科学领域:

  • 工程 工程师 工程师 工程师
  • 计算机科学 计算机科学
  • 数学 数学 是一个数学.

背景情况:

  • 数字双胞胎需要超越自定义实现的可扩展,统一的数学公式.
  • 目前的方法缺乏一个强大的框架,用于大规模的数字双胞胎部署.

研究的目的:

  • 提出一个概率图形模型作为数字双胞胎的正式数学表示.
  • 为了实现可扩展,强大和原则性的数字双胞胎实现.

主要方法:

  • 将资产双胞胎系统抽象化为合动态系统.
  • 用概率的图形模型来进行正式的数学定义.
  • 利用贝叶斯统计学,动态系统和控制理论.

主要成果:

  • 为无人机 (UAV) 展示了结构数字双胞胎的实例化.
  • 通过实验UAV数据成功校准了数字双胞胎.
  • 插图动态更新和决策与飞行中的损害模拟.

结论:

  • 概率图形模型为数字双胞胎校准和更新提供了统一和可扩展的基础.
  • 拟议的模型是严格的,灵活的,适用于各种领域.
  • 这个框架支持整个数字双胞胎车队的管理.