A Method for Aileron Actuator Fault Diagnosis Based on PCA and PGC-SVM

Table 1

Elementary hydraulic properties.

FP04-1: all real parameters	Unit	Value
Density	kg/m^3	850
Bulk modulus	Bar	17000
Slope of bulk modulus [bar] in function of pressure [bar] (in percentage)	Null	0
Absolute viscosity	cP	51
Absolute viscosity of air/gas	cP	0.02
Saturation pressure (for dissolved air/gas)	Bar	0
Air/gas content	%	0.1
Temperature	degC	40
Temperature	degC	40
Kinematic viscosity at (atm, )	cSt	56.47
Temperature	degC	100
Kinematic viscosity at (atm, )	cSt	9.71
Coefficient for temperature viscosity characteristic	Null	200
Polytropic index for air/gas/vapor content	Null	1.4
(Advanced user) High saturated vapor pressure	Bar	−0.5
(Advanced user) Low saturated vapor pressure	Bar	−0.6
(Advanced user) Absolute viscosity of vapor	cP	0.02
(Advanced user) Effective molecular mass of vapor	Null	200
(Advanced user) Air/gas density at atmospheric pressure 0 degC	kg/m^3	1.2