航空发动机易损性仿真与评估技术研究  

Research on simulation and evaluation technology of aero-engine vulnerability

作　　者：李兆红 邢洋 裴扬[2] 柴政 郭鹏超 LI Zhaohong;XING Yang;PEI Yang;CHAI Zheng;GUO Pengchao(Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China;School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China;Aviation Power Compony Limited,Aero Engine Corporation of China,Xi’an 710021,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015 [2]西北工业大学航空学院,西安710072 [3]中国航发动力股份有限公司,西安710021

出　　处：《航空动力学报》2024年第10期304-310,共7页Journal of Aerospace Power

摘　　要：为提高飞机的作战生存力,提出了一种航空发动机易损性评估的计算仿真方法。以某型发动机为对象,对发动机致命性部件进行识别,建立了发动机易损性评估模型,选取弹丸作为典型威胁,使用易损性仿真分析软件对发动机杀伤概率等易损性指标进行量化计算。根据开发的易损性计算软件计算结果,方向1和方向7,压气机机匣、低压转子和高压转子的B级杀伤概率较高。考虑可能落实的发动机易损性缩减措施,提出针对发动机的易损性设计改进建议,并通过算例计算分析改进效果。提出的方法对于航空发动机防护以及生存力设计有指导意义。In order to improve the combat survivability of aircraft,a computational simulation method for aircraft engine vulnerability assessment was proposed.Taking a certain type of engine as an object,the lethal components of the engine were identified,the vulnerability assessment model of the engine was established,then the projectile was selected as a typical threat,and the vulnerability simulation analysis software was used to quantify the vulnerability indicators such as the engine kill probability.According to the calculation results of the developed vulnerability calculation software,for direction 1 and direction 7,the level B kill probability of compressor inner casing,low-pressure and high-pressure rotating shafts was high.Considering possible measures to reduce the vulnerability of the engine,suggestions for improving the vulnerability design of the engine were put forward,and the improvement effect was analyzed by calculating an example.The proposed method has guiding significance for aero-engine protection and survivability design.

关 键 词：生存力 易损性 损伤模式 杀伤概率 缩减设计 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]