Damage isolation and residual working system acquisition methods of ship steam power piping system

Abstract

The invention discloses damage isolation and residual working system acquisition methods of a ship steam power piping system. The damage isolation method comprises the following steps: establishing a function logic model of the ship steam power piping system through a mutual coupling manner of a function tree and a double-layer directed graph; and according to a damage condition of a valve of the ship steam power piping system, isolating the damaged valve through a connection relation of an operation stack and a dynamically modified vertex. The residual working system acquisition method comprises the following steps: on the basis of the damage isolation method, establishing a steam supply path search algorithm through a multi-way tree extension and traversing manner, and acquiring a working system so as to predicate the quantity of available main steam turbines and the quantity of boilers with a steam supply capability, namely an X-furnace and X-machine working system. By virtue of adopting the damage isolation and residual working system acquisition methods, the automatic isolation of a damaged region and the automatic acquisition of a residual working capability are realized; the automatic level of the battle damage evaluation of a steam power system is improved; the residual working capability of the power system is easy to grasp, and the speed and accuracy of a damage evaluation state are improved.

Description

technical field [0001] The invention relates to the technical field of vulnerability analysis and evaluation of ship steam power systems, in particular to a method for damage isolation of ship steam power piping systems and acquisition of remaining duty. Background technique [0002] When a ship is damaged by the long-distance non-contact explosion impact of a mine, the valve of the steam power piping system is usually damaged, but the hull and steam pipeline are not damaged. After the valve is damaged, high-temperature and high-pressure steam will leak, which will have a serious impact on the safety of people and equipment. Therefore, the crew needed to quickly identify the valves that needed to be closed to shut off steam leakage from the damaged area. Not only that, the damage of the valve will also cause the steam power piping system to be unable to transport steam, and make the available capacity of the steam power system drop sharply. Therefore, in the case of combat...

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Problems solved by technology

Therefore, functional logic modeling of steam power systems is a complex problem

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