定检中机务人员的疲劳会导致失误、遗忘、错误等人为差错,极大增加了民机发生事故的概率。为有效分析和控制定检中机务人员的疲劳,综合考虑人-机-环因素交互的危害,建立了规范化定量化的安全性分析模型。首先运用功能可变性描述规则(fun...定检中机务人员的疲劳会导致失误、遗忘、错误等人为差错,极大增加了民机发生事故的概率。为有效分析和控制定检中机务人员的疲劳,综合考虑人-机-环因素交互的危害,建立了规范化定量化的安全性分析模型。首先运用功能可变性描述规则(functional variability of rules,RFV)和统一建模语言(unified modeling language,UML)对系统理论过程分析(systems-theoretic process analysis,STPA)方法进行改进,建立定检中机务人员疲劳致因与控制的综合分析模型,识别出定检中可变性指数较高的交互回路,分析出75种疲劳致因并制定出11条疲劳管理规范。最后利用形式化工具对机务人员疲劳影响定检模块这一过程进行演绎,查找制约民航安全的因素,为航空公司持续适航安全性方面提供理论参考。展开更多
When disruptions occur, the airlines have to recover from the disrupted schedule. The recovery usually consists of aircraft recovery, crew recovery and passengers' recovery. This paper focuses on the integrated re...When disruptions occur, the airlines have to recover from the disrupted schedule. The recovery usually consists of aircraft recovery, crew recovery and passengers' recovery. This paper focuses on the integrated recovery, which means above-mentioned two or more recoveries are considered as a whole. Taking the minimization of the total cost of assignment, cancellation and delay as an objective, we present a more practical model, in which the maintenance and the union regulations are considered. Then we present a so-called iterative tree growing with node combination method. By aggregating nodes, the possibility of routings is greatly simplified, and the computation time is greatly decreased. By adjusting the consolidating range, the computation time can be controlled in a reasonable time. Finally, we use data from a main Chinese airline to test the algorithm. The experimental results show that this method could be used in the integrated recovery problem.展开更多
文摘定检中机务人员的疲劳会导致失误、遗忘、错误等人为差错,极大增加了民机发生事故的概率。为有效分析和控制定检中机务人员的疲劳,综合考虑人-机-环因素交互的危害,建立了规范化定量化的安全性分析模型。首先运用功能可变性描述规则(functional variability of rules,RFV)和统一建模语言(unified modeling language,UML)对系统理论过程分析(systems-theoretic process analysis,STPA)方法进行改进,建立定检中机务人员疲劳致因与控制的综合分析模型,识别出定检中可变性指数较高的交互回路,分析出75种疲劳致因并制定出11条疲劳管理规范。最后利用形式化工具对机务人员疲劳影响定检模块这一过程进行演绎,查找制约民航安全的因素,为航空公司持续适航安全性方面提供理论参考。
文摘When disruptions occur, the airlines have to recover from the disrupted schedule. The recovery usually consists of aircraft recovery, crew recovery and passengers' recovery. This paper focuses on the integrated recovery, which means above-mentioned two or more recoveries are considered as a whole. Taking the minimization of the total cost of assignment, cancellation and delay as an objective, we present a more practical model, in which the maintenance and the union regulations are considered. Then we present a so-called iterative tree growing with node combination method. By aggregating nodes, the possibility of routings is greatly simplified, and the computation time is greatly decreased. By adjusting the consolidating range, the computation time can be controlled in a reasonable time. Finally, we use data from a main Chinese airline to test the algorithm. The experimental results show that this method could be used in the integrated recovery problem.
