Vulnerability analysis and assessment simulation was carried out with main-battle tank weapon system as the research object according to implementation procedure of degraded state (DS) assessment method. First, DS values revealing loss of functions of each sub-system were identified based on analysis of each sub-system functions. Function damage trees were created using deductive method from top to bottom. To realize threat-target interaction, instant velocity of debris behind armor was simulated using Monte Carlo stochastic simulation method. Component level vulnerability assessment simulation system was developed by Visual C 6.0 platform. Function modules were designed, and one case was run and simulated results were analyzed. It showed that relative space between one component and hit point and whether there are defense components directly affect damage state of the component. In component level vulnerability analysis, not only vulnerability area but also defense and shelter need to be considered. Research in this paper is one important part of component level vulnerability assessment of armored equipment and may provide a foundation for battle damage assessment and exact support simulation.

degraded state  /  vulnerability analysis and assessment  /  secondary debris  /  damage tree