Missile weapon system basic level maintenance modeling method based on Petri network

A technology of missile weapons and modeling methods, applied in instruments, special data processing applications, electrical digital data processing, etc., can solve the maintenance activity modeling that cannot be probabilistic adjacency relationship, and cannot provide maintenance activity time data and maintenance resource quantity. , modeling cumbersome and other problems

Inactive Publication Date: 2014-05-21
CHINA AEROSPACE STANDARDIZATION INST
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AI Technical Summary

Problems solved by technology

Due to the complexity and uncertainty of the system itself, it is very cumbersome to model the maintenance process at the grassroots level
[0003] The basic-level maintenance process analysis of missile weapon systems requires simple and intuitive graphical modeling. At present, the network diagram method is widely used, and the network diagram-based analysis methods mainly include PERT/CPM method, arrow li

Method used

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  • Missile weapon system basic level maintenance modeling method based on Petri network
  • Missile weapon system basic level maintenance modeling method based on Petri network
  • Missile weapon system basic level maintenance modeling method based on Petri network

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Experimental program
Comparison scheme
Effect test

Embodiment

[0081] (1) Calculation case of maintenance working hours:

[0082] First of all, in order to facilitate the understanding of the analysis method, the remedial maintenance process of the missile weapon system is simplified. The specific work items of the maintenance process are shown in Table 3. Without considering the allocation of resources, the maintenance time is completely determined by the working time of each maintenance operation Decide.

[0083] table 3

[0084]

[0085]

[0086] At the same time, the probability that there may be direct replacement without applying for spare parts is P 1 =1 / 3, the probability of needing to apply for spare parts is P 2 =2 / 3. Using Petri net analysis method to determine the maintenance activities The working hours of the work items, the logical composition relationship of the work items remains unchanged, and the time of each process conforms to the exponential distribution characteristics, as shown in Table 4, the analysis o...

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Abstract

The invention provides a missile weapon system basic level maintenance modeling method based on Petri network. The missile weapon system basic level maintenance modeling method based on the Petri network comprises the following steps that Step 1, according to the actual utilization of a missile weapon system and the workflow of the basic level maintenance, the basic level maintenance work is divided into maintenance events, maintenance actions and maintenance operations according to hierarchy, each maintenance operation is analyzed in a logical relation and a temporal relation, the logical relation comprises a definitive type relation and a probabilistic type relation; Step 2, based on a logic sequence and a time sequence among the maintenance operations, modeling is conducted by using the Petri network; Step 3, a model A which is built in the maintenance actions of the missile weapon system basic level maintenance work by using the Petri network is simplified. By the modeling of the maintenance actions of the definitive type adjacency relation and the probabilistic type adjacency relation, the required maintenance action time data are acquired and maintenance resource quantity is confirmed, and the missile weapon system basic level maintenance support work can be assured of going smoothly.

Description

technical field [0001] The invention belongs to the technical field of aerospace support, and relates to a Petri net-based grassroots-level maintenance modeling method for missile weapon systems. Background technique [0002] With the development of high-tech missile weapon systems, continuous changes in combat styles, and the transformation of military construction, the role of grass-roots maintenance of missile weapon systems in modern warfare has become increasingly prominent. Level maintenance process has a more important significance. The modeling technology of the maintenance process of the missile weapon system at the basic level is a comprehensive and basic technology. Due to the complexity and uncertainty of the system itself, the modeling of the maintenance process at the grass-roots level is very cumbersome. [0003] The basic-level maintenance process analysis of missile weapon systems requires simple and intuitive graphical modeling. At present, the network di...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 程海龙刘岩胡彭炜沈岭李福秋冉迎春张锐角淑媛蔡健平赵婉高宏辉张萌吴航
Owner CHINA AEROSPACE STANDARDIZATION INST
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