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首页> 美国政府科技报告 >Dynamic modeling of physical phenomena for probabilistic risk assessments using artificial neural networks
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Dynamic modeling of physical phenomena for probabilistic risk assessments using artificial neural networks

机译：使用人工神经网络进行概率风险评估的物理现象动态建模

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In most probabilistic risk assessments, there is a subset of accident scenarios that involves physical challenges to the system, such as high heat rates and/or accelerations. The system's responses to these challenges may be complicated, and their prediction may require the use of long-running computer codes. To deal with the many scenarios demanded by a risk assessment, the authors have been investigating the use of artificial neural networks (ANNs) as a fast-running estimation tool. They have developed a multivariate linear spline algorithm by extending previous ANN methods that use radial basis functions. They have applied the algorithm to problems involving fires, shocks, and vibrations. They have found that within the parameter range for which it is trained, the algorithm can simulate the nonlinear responses of complex systems with high accuracy. Running times per case are less than one second.

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