The invention belongs to the field of design of bird strike tests of aero-engines, and relates to a preparation method of a simulated bird bomb for bird strike tests of aero-engines, which comprises the following steps: preparing materials and tools, respectively pouring gelatin and water into a stainless steel barrel according to a set proportion, stirring the gelatin and the water by a stirring rod, uniformly stirring at room temperature to form a gelatin mixed solution, and drying the gelatin mixed solution to obtain the simulated bird bomb for bird strike tests of aero-engines. Putting the gelatin mixed solution into a constant-temperature water tank, standing and melting to complete the preparation of the gelatin mixed solution; the ratio of the gelatin mixed solution is 78: 22, 78% of the gelatin mixed solution is water, 22% of the gelatin mixed solution is gelatin, when the gelatin mixed solution is prepared, water with the specified weight is poured into a stainless steel barrel, gelatin powder is poured into the water while the water in the stainless steel barrel is stirred with a stirring rod, and the blending time of the gelatin mixed solution is not longer than 5 minutes; stirring the gelatin mixed solution for 10 minutes through the middle-gear rotating speed of the stirrer; and then the preparation of the simulated bird bomb is completed through injection molding, curing and demolding. Manufacturing efficiency is high, stability is high, and manufacturing cost is low.
本申请属于航空发动机鸟撞试验设计领域,为一种航空发动机鸟撞试验用模拟鸟弹制备方法,先准备材料与工具,而后将明胶与水按照设定比例分别倒入至不锈钢桶内,通过搅拌棒搅拌明胶与水,室温搅拌均匀后形成明胶混合液,将明胶混合液放入恒温水域槽内静置融化,完成明胶混合液制备;明胶混合液采用的配比为78:22,其中78%为水,22%为明胶,在制备明胶混合液时先向不锈钢桶内倒入规定重量的水,用搅拌棒搅拌不锈钢桶内水的同时,将明胶粉末倒入水中,明胶混合液掺混时间不大于5分钟;通过搅拌机中档转速将明胶混合液搅拌10分钟;而后通过注模‑固化‑脱模后完成模拟鸟弹的制备;制造效率高、稳定性高、制造成本低。
Preparation method of simulated bird bomb for bird strike test of aero-engine
一种航空发动机鸟撞试验用模拟鸟弹制备方法
2023-05-16
Patent
Electronic Resource
Chinese
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
Aero-engine air inlet mechanism capable of preventing bird strike
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Airframe and Engine Bird Strike Testing
Wiley | 2019
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