Vibration Reliability Analysis of Aeroengine Rotor Based on Intelligent Neural Network Modeling Framework

Table 1

4 types of factors and characteristics.

Influence factor	Characteristic	Acronym	Description	Units
Aeroengine operating status	EGT (T495) 1	EGT1	Exhaust gas temperature of No. 1 engine	DEGC
	EGT (T495) 2	EGT2	Exhaust gas temperature of No. 2 engine	DEGC
	N1 INDICATED 1	N11	Low-pressure compressor rotor speed of No. 1 engine	%RPM
	N1 INDICATED 2	N12	Low-pressure compressor rotor speed of No. 2 engine	%RPM
	N2 ACTUAL 1	N21	High-pressure compressor rotor speed of No. 1 engine	%RPM
	N2 ACTUAL 2	N22	High-pressure compressor rotor speed of No. 2 engine	%RPM
Fuel/oil operating status	FUEL FLOW 1	FF1	Fuel flow of No. 1 engine	PPH
	FUEL FLOW 2	FF2	Fuel flow of No. 2 engine	PPH
	ENG1 OIL QTY	EGOILQ1	Oil quantity of No.1 engine	QT
	ENG2 OIL QTY	EGOILQ2	Oil quantity of No.2 engine	QT
	OIL PRS 1	OILP1	Oil pressure of No.1 engine	PSI
	OIL PRS 2	OILP2	Oil pressure of No.2 engine	PSI
	OIL TEMP 1	OILT1	Oil temperature of No.1 engine	DEGC
	OIL TEMP 2	OILT2	Oil temperature of No.2 engine	DEGC
Aircraft operating status	BARO COR ALT	BALT	Barometric altitude of aircraft	FEET
	COMPUTED AIRSPD	CAS	Computed airspeed	KNOTS
	ANG OF ATTACK LT	AOAL	Angle of attack, left	DEGS
	ANG OF ATTACK RT	AOAR	Angle of attack, right	DEGS
	GMT (HR/MIN/SEC)	GMT	Greenwich mean time	HH: MM: SS
Aircraft operating environment	TOTAL AIR TEMP	TAT	Total air temperature	DEGC
	WIND SPD (FMC)	WSFMC	Wind speed	KNOTS