A minimum cut set solving method for analyzing a vacuum drying operation explosion accident tree

Abstract

The invention relates to the field of accident tree analysis, in particular to a minimum cut set solving method based on a subsequent traversal accident tree in vacuum drying operation explosion accident tree analysis. The method specifically comprises the following steps that firstly, a burning explosion accident tree of vacuum drying operation is constructed, and logic gates, father nodes and all child nodes of all nodes in a tree structure are defined; then, based on subsequent traversal, not repeatedly accessing all nodes in the tree from left to right and from bottom to top in sequence; when a root node of the subtree is accessed, set transformation of a Boolean algebra operation law is carried out according to a logic gate of the current root node, so that symbol operation simplification of the Boolean algebra is realized in a computer; and finally, solving the minimum cut set of the burning and blasting accident tree based on the subsequent traversing accident tree. The algorithm has been implemented in a computer using Java language object-oriented programming. The method has the advantages of popular and understandable analysis and calculation process, high operation speed, accurate analysis result and the like.

Description

technical field [0001] The invention relates to the field of fault tree analysis, in particular to a method for obtaining a minimum cut set based on postorder traversal of the fault tree in the analysis of the explosion fault tree in vacuum drying operations. Background technique [0002] Fault Tree Analysis (FTA) is a very important analysis and evaluation method in safety system engineering. It was first proposed by the Bell Telephone Research Institute of the United States in the study of the Minuteman missile launch control system, and then gradually extended to mechanical and electronic systems. , transportation, chemical industry and many other fields. [0003] The fault tree analysis method adopts the reverse process analysis from the cause to the result. On the basis of determining a specific accident or consequence (top event), through a comprehensive analysis and investigation, according to the principle of deductive analysis, it analyzes the direct consequences of...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an algorithm based on postorder traversal of the fault tree combined with Boolean algebraic operation law to obtain the minimum cut set of the explosion fault tree in vacuum drying operation of energetic materials, so as to solve and improve the current situation. There are problems such as complex calculation process and slow operation in the minimum cut set calculation method

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