A Petri net model for railway bridge maintenance
A Petri net model for railway bridge maintenance
复制标题
铁路桥梁维护的Petri网模型
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
C. Fecarotti
中科院分区：
文献类型：
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作者：
Bryant Le;J. Andrews;C. Fecarotti
本文介绍了Petri网建模方法在铁路桥梁维修过程管理中的应用。Petri网模型占退化，检查和维修过程中的个别桥梁元件的调查替代维修策略的有效性。考虑退化和修复过程的时间是随机的，并由适当的威布尔分布定义。该模型提供了一种建模桥梁资产的能力，克服了文献中报道的当前使用的建模技术的局限性。桥梁模型还提供了一种预测未来资产状况的方法，因为采用了不同的维护策略。的Petri网模型的解决方案是使用Monte Carlo模拟例程。文中还介绍了该模型在一座典型金属铁路桥上的应用。
This article describes the application of the Petri net modelling approach to managing the maintenance process of railway bridges. The Petri net model accounts for the degradation, inspection and repair processes of individual bridge elements in investigating the effectiveness of alternative maintenance strategies. The times governing the degradation and repair processes considered are stochastic and defined by the appropriate Weibull distribution. The model offers a capability for modelling the bridge asset which overcomes the limitations in the currently used modelling techniques reported in the literature. The bridge model also provides a means of predicting the future asset condition as a result of adopting different maintenance strategies. The solution of the Petri net model is performed using a Monte Carlo simulation routine. The application of the model to a typical metal railway bridge is also presented in the article.