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A method for simulating a gas turbine engine and drive mechanism of a factory a simulator for more purpose aircraft

机译:用于仿真燃气涡轮发动机的方法和工厂的驱动机构,以及用于多用途飞机的仿真器

摘要

A compact apparatus for simulating the in-flight aerodynamic performance of a multimission aircraft propulsion system of the gas turbine engine variety having an external envelope of a reduced size in relation to the engine to be simulated. The apparatus includes a turbine driven by externally generated, high pressure motive air which is drivingly connected to a compressor in the usual manner of a gas turbine engine. The flow of air pressurized by the compressor is mixed with a portion of the relatively higher pressure turbine motive air so as to generate a mixed flow having a generally uniform pressure profile entering the exhaust nozzle. The compressor, turbine, mixer and nozzle are sized to produce a pressure ratio across the apparatus and a nozzle flow function which are substantially identical to the engine to be simulated, though these components are of a reduced size in relation thereto. Through modulation of the amount of turbine motive air which is mixed with the air pressurized by the compressor, the nozzle flow function and pressure ratio can be altered to simulate a wide range of engine operating cycles including those associated with reheat and dry operation. The remainder of the turbine motive air exhausts from the apparatus as a nonpropulsive stream.
机译:一种用于模拟燃气涡轮发动机的多任务飞机推进系统的飞行中空气动力性能的紧凑装置,该装置具有相对于要模拟的发动机而言尺寸减小的外壳。该设备包括由外部产生的高压动力驱动的涡轮,该涡轮以燃气涡轮发动机的常规方式驱动地连接至压缩机。由压缩机加压的空气流与一部分相对较高压力的涡轮机原动力混合,从而产生进入排气喷嘴的具有大体均匀压力分布的混合流。压缩机,涡轮机,混合器和喷嘴的尺寸确定为产生跨装置的压力比和喷嘴流量函数,它们与要模拟的发动机基本相同,尽管这些部件相对于它们具有减小的尺寸。通过调节与压缩机加压的空气混合的涡轮机动力的量,可以改变喷嘴的流量功能和压力比,以模拟各种发动机工作循环,包括与再热和干运转相关的循环。其余的涡轮机动力空气作为非推进流从设备中排出。

著录项

  • 公开/公告号DE2839599A1

    专利类型

  • 公开/公告日1979-06-13

    原文格式PDF

  • 申请/专利权人 GEN ELECTRIC;

    申请/专利号DE19782839599

  • 发明设计人 WEST HARRISON US;DELANEY BOBBY RAY US;

    申请日1978-09-12

  • 分类号G09B25/02;F02K11/00;F02C9/00;G01M9/00;

  • 国家 DE

  • 入库时间 2022-08-22 19:44:06

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