| Citation: | LI Zhaohong, XING Yang, PEI Yang, et al. Research on simulation and evaluation technology of aero-engine vulnerability[J]. Journal of Aerospace Power, 2024, 39（10）：20220442 doi: 10.13224/j.cnki.jasp.20220442
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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.
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