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简单介绍了某燃气涡轮轴发动机起动电机数学模型。A starter mathematic model on a turboshaft engine is described briefly in the paper.

也有桨发动机，些是涡轮螺旋直升机普遍采用涡轮轴发动机。Also has the oar engine, is the turboprop helicopter uses the turboshaft engine generally.

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为提高某涡轴发动机的性能，需要对其离心压气机进行改进。It is necessary to redesign the centrifugal compressor to improve the performance of a turboshaft engine.

然后，利用建立的数学模型分析起动电机特性对燃气涡轮轴发动机起动性能的影响。Then, we can use the model to analyze starter characteristic effect on start performance of turboshaft engine.

为模拟大负载情况下旋翼转速的波动，建立了双发准定常涡轮轴发动机实时仿真模型。Then a real-time quasi-steady turboshaft twin- engined model is founded by simulating the rotor speed fluctuation.

仅有的一台涡轴发动机安装在机身内部，进气口和排气口在机舱顶部。A single turboshaft engine is mounted inside the body with air intakes on top of the cabin and a blackhole exhaust.

然后，利用建立的数学模型分析部件材料温升对燃气涡轮轴发动机起动性能的影响。Then, the model was used to analyze component material warm-up effect on the turboshaft engine starting characteristics.

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某发动机用GH4169合金涡轮轴转动锻件由轴部和盘部两部分组成，考虑采用两步锻造法进行生产。A two-step forging approach was taken in the production of GH4169 turboshaft of an engine, which was an integration of a disk and a shaft.

为了调节速度，可以给它安装较大的旋转叶片和齿轮，他们说，在水和空气中，涡轮轴发动机装置提供的效率“可以接受”。Equipped with large rotor blades and gears to adjust its speed, a turboshaft unit offers "acceptable efficiency" in both air and water, they say.

奥本学校的学生在其设计中采取了相似策略，为了获得最佳性能，他们采用了一种名叫”涡轮轴发动机“的燃气涡轮机。The Auburn students came up with much the same strategy in their design, opting for a type of gas turbine called a turboshaft to get the best performance.

依据某型涡轴发动机冷运转试验数据，给出了发动机阻力矩和净力矩的计算方法。Based on a turboshaft engine test data gathered during cold run, a method of calculating engine resistant torque and torque for acceleration was introduced.

根据航空涡桨和涡轴发动机通用规范的要求，涡轴发动机在研制过程中必须进行高空模拟试验。Altitude simulation test must be completed during the research and development of turboshafts according to the general specification for turboshaft and turboprop.

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介绍了涡轴发动机起动过程中部件材料温升对离心压气机效率影响的数学模型。A mathematical model was introduced for the calculation of component material warm-up effect on centrifugal compressor efficiency during turboshaft engine starting.

这是一个具有里程碑意义的设计，是第一个反潜直升机利用涡轴发动机之一，并成为世界第一的两栖直升机。It was a landmark design, being one of the first ASW helicopter to take advantage of turboshaft engines, as well as being the first amphibious helicopter in the world.

按照某涡轴发动机起动供油规律，利用建立的数学模型计算了此发动机起动性能，并和发动机试验结果进行比较，以验证模型建立的准确性。According to the turboshaft engine's starting fuel flow, starting characteristics was calculated and compared with the engine test data to verify the accuracy of the model.

对涡轴发动机动力涡轮转子测扭基准轴的不平衡量进行了研究，提出了一种通过高速动平衡试验估算出测扭基准轴不平衡量的试验方法。The torque tube unbalance of turboshaft power turbine rotor is investigated and a test method for estimating the unbalance is introduced with high speed dynamic balance test.

我们蹲坐在设备周围，忍受著直升机双涡轮轴引擎震耳欲聋的噪音，终于在经过六小时的航程后，抵达位于广阔针叶林中的目的地。For six hours we squatted among our equipment, deafened by the chopper's twin turboshaft engines, until we finally reached our distant goal in the middle of the endless taiga.

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研究了基于在线可变压气机导叶角的涡轴发动机最小油耗优化控制。分析了压气机导叶角的变化对涡轴发动机的影响。The online optimization control of variable inlet guide vane was studied for minimum fuel consumption, and the effect of variable inlet guide vane on the turboshaft engine was analyzed.

基于发动机台架性能仿真程序对该模型进行简化，得到涡轮轴发动机工作过程的热力学模型。First, the descriptions of the flying performance of helicopters and the characteristics of the turboshaft are discussed, and a math model of the working process of the turboshaft is built.