A Modeling Method for Base-Level Maintenance of Missile Weapon System Based on Petri Net

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...

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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 line activity method, and adjacency matrix method. etc., but none of these three methods can model the maintenance activities of probabilistic adjacency

Therefore, in the maintenance process of the missile weapon system, when faced with the maintenance operation of the probabilistic adjacency relationship, it is impossible to provide the maintenance activity time data and the number of maintenance resources

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