Optimal Design of Instantaneous Availability Fluctuation ◾ 261
e system adaptation time corresponding to the optimal approximate solution
is 0, which means the system is matched. As seen from Figures 9.4 and 9.5, the
system instantaneous availability almost monotonically decreases and tends to sta-
bilize at the steady state. But it fluctuates at [50,100], and also fluctuates slightly at
200th unit time. e fluctuation at [50,100] refers to the maintenance subsystem
of the equipment caused by the coordination between the support subsystem and
the equipment itself. e fluctuation at 200th unit time is caused by the truncated
point under truncated and discrete Weibull distribution also at 200th unit time.
But these fluctuations are completely below ...