航空发动机齿轮减速器振动噪声机理和辐射噪声的预测

Mechanism of Vibration Noise and Prediction of Radiation Noise in Aircraft Engine Gear Reducers

齿轮减速器是飞机引擎中的关键部件,它能够将高转速输出转化为低转速输入,从而实现对发动机功率的调节。然而,由于齿轮传动系统的结构复杂性和运动特性特殊性,齿轮减速器在运行过程中容易产生振动噪声和辐射噪声,这对飞机引擎的稳定性和安全具有一定的影响。因此,研究齿轮减速器振动噪声机理和辐射噪声的预测是非常必要的。

Gear reducer is a key component in aircraft engines,which can convert high speed output into low speed input,thereby achieving the adjustment of engine power.However,due to the structural complexity and special motion characteristics of gear transmission systems,gear re⁃ducers are prone to generate vibration and radiation noise during operation,which has a certain impact on the stability and safety of aircraft engines.Therefore,it is necessary to study the vibra⁃tion and noise mechanism of gear reducers and predict the radiation noise.