International Journal of Aerospace Engineering / 2018 / Article / Tab 7

Research Article

Aircraft Gas Turbine Engine Health Monitoring System by Real Flight Data

Table 7

Multiple regression analysis results for EGT training data.

ModelCoefficientsa
Unstandardized coefficientsStandardized coefficientstSig.Correlations
BStd. errorBetaZero orderPartialPart

1
 (Constant)854.36132.67926.1440.000
 N1 speed7.2790.2611.59227.9240.0000.7180.6630.217
 N2 speed−7.6050.529−.698−14.3810.0000.653−0.415−0.112
 Pitch8.6540.5530.29315.6510.0000.8740.4440.122
 Angle of attack2.1390.7990.0332.6750.008−0.0030.0840.021
 Roll1.5920.2380.0566.6870.000−0.1390.2070.052
 Vertical acceleration−72.02620.637−0.029−3.4900.001−0.107−0.110−0.027
 Total air temperature3.4180.1460.52223.3770.0000.0030.5950.182
 Ground/air−33.7765.793−0.099−5.8310.0000.007−0.182−0.045

aDependent variable: Exhaust gas temperature.