飞机易损性模型简化方法研究

Research on the Simplification of Aircraft Vulnerability Models

针对工程应用中飞机零部件数目庞大导致易损性计算耗时长的问题,提出了3种飞机模型简化方法:产品封装法、等效法和修正法。产品封装法主要用于飞机系统部件的简化,等效法主要用于飞机结构部件的模型简化,修正法则用于飞机全机模型的简化。经过简化后的飞机模型,部件数目在300以内。使用飞机易损性评估方法计算模型简化后的飞机易损性,其计算耗时大约是不简化的0.5%,可满足工程实际应用。

Three methods for the simplification of aircraft vulnerability models are proposed in this paper for resolving the problem that the vulnerability calculation of actual aircraft is time-consuming because of the large number of the parts on the aircraft. They are product packaging method, equivalent method and modified method. The simplification of the system components and the structure use the product packaging method and the equivalent method separately, the modified method is used for the simplification of the all aircraft models. The components number of the aircraft models which will be simplification is 300. The time for calculating the vulnerability of the simplification aircraft is only 0.5% of the actual aircraft, it meets the requirement for the engineering application.