ABSTRACT
X = (X1, X2, X3, . . . , Xn) (1)
2. Values of diagnostic parameters change due to aging processes going on all the time. It is assumed that these changes are monotonic in nature; they can be presented in the following way:
ΔXi = ∣∣Xi − X nomi
∣∣ , i = 1, 2, 3, . . . , n (2)
where: ΔXi = absolute value of deviation of the diagnostic parameter from the nominal value; Xi = current value of the i-th parameter; X nomi = nominal value of the i-th parameter.
