尚洋.民用涡扇发动机振动因子试验试飞方法研究[J].民用飞机设计与研 究,2020(1):29-32.[J].Civil Aircraft Design and Research,2020,(1):29-32.
民用涡扇发动机振动因子试验试飞方法研究
  
DOI:10.19416/j.cnki.1674-9804.2020.01.006
中文关键词:航空发动机  低压转子  振动  影响系数法  振动因子
英文关键词:aero-engine  low pressure rotor  vibration  influence coefficient method  balance coefficients
基金项目:
作者单位
尚洋 上海飞机设计研究院上海 201210 
中文摘要:振动故障是航空发动机常见且危害较大的故障,对发动机进行转子平衡是降低发动机振动的重要措施。目前先进的飞机可以利用机载设备和航线飞行记录的振动数据进行低压转子振动配平方案计算,而发动机振动因子是机载设备计算配平方案的关键要素。发动机振动因子需通过大量的试验试飞获取数据并计算得出,介绍了振动因子的计算方法、振动因子的形式,对获取振动因子计算数据的试验试飞方法进行了研究,并给出了振动因子数据处理方法。
英文摘要:Vibration failure is a common and serious failure for the aero-engine. Engine dynamic balance is an important measure to reduce the engine vibration. The advanced aircrafts are capable of calculating the engine low pressure rotor balance solution using the airborne equipment and vibration data collected during the regular flights. The engine balance coefficients are the critical factor of the calculation. A lot of ground and flight tests are needed to collect data to calculate the engine balance coefficients.This article introduces the calculation method of the balance coefficients, format of the balance coefficients, studies the test procedure of obtaining the balance coefficients data and gives the processing method of the obtained balance coefficients data.
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