CAJ | 학술논문

提出一种基于改进模糊Petri网(FPN)的系统易损性评估模型.该模型在传统FPN基础上结合一种改进的粒子群优化算法,既能够模拟系统复杂的逻辑关系,又能够更方便地通过训练样本来确定系统中大量未知参数,摆脱对专家经验的依赖,具有优良的收敛性能.针对大型载机舰船航空保障系统的特性,建立了基于改进FPN的航保系统易损性评估模型.算例表明该方法比传统损伤树法更合理、全面,可推广用于舰船复杂系统易损性评估.
제출일충기우개진모호Petri망(FPN)적계통역손성평고모형.해모형재전통FPN기출상결합일충개진적입자군우화산법,기능구모의계통복잡적라집관계,우능구경방편지통과훈련양본래학정계통중대량미지삼수,파탈대전가경험적의뢰,구유우량적수렴성능.침대대형재궤함선항공보장계통적특성,건립료기우개진FPN적항보계통역손성평고모형.산례표명해방법비전통손상수법경합리、전면,가추엄용우함선복잡계통역손성평고.
In order to apply fuzzy Petri net (FPN) to predict system vulnerability, an improved FPN model is introduced in this paper.Combining modified swarm optimization algorithm with traditional FPN,the improved FPN model is not only capable to describe complex logic relationships in sys-tem,but also to specify unknown parameters easily by training sample data with strong convergence capability, getting rid of expert or experiences. According to the characteristics of vulnerability assessment of aircraft guarantee system on board,the vulnerability evaluation model is constructed based on the improved FPN.The comparison of experiment results between the presented method and the damage tree analysis method demonstrates exhaustiveness and rationality of this model. The model would be applied to the complex ship system assessment.