def system_example(): r""" Describe the system as a reliability block diagram | -- A0 -- | -- M0 -- | | / | E -- | -- A1 -- | | -- S | \ | | -- A2 -- | -- M1 -- | """ alim = [Component('A_%s' % i, 2e-4) for i in xrange(3)] motors = [Component('M_%s' % i, 1e-4) for i in xrange(2)] S = System() S['E'] = [alim[0], alim[1], alim[2]] S[alim[0]] = [motors[0]] S[alim[1]] = [motors[0], motors[1]] S[alim[2]] = [motors[1]] S[motors[0]] = 'S' S[motors[1]] = 'S' print('The MTTF of the system isĀ :', S.mttf) timerange = range(0, 2 * 365 * 24, 100) # 2 years study reliability = [S.reliability(t) for t in timerange] plot(timerange, reliability) show()
from fiabilipy import Component from sympy import Symbol t = Symbol('t', positive=True) comp = Component('C0', 1e-4) print(comp.reliability(100)) print(comp.reliability(t=33)) print(comp.mttf) from fiabilipy import System power = Component('P0', 1e-6) motor = Component('M0', 1e-3) print(power) S = System() S['E'] = [power] S[power] = [motor] S[motor] = 'S' print(S.reliability(t)) print(S.mttf) print(float(S.mttf)) a, b, c, d, e, f, g = [Component('C%i' % i, 1e-4) for i in range(7)] S = System() S['E'] = [a, b, c, g] S[a] = S[g] = S[e] = S[d] = 'S' S[b] = S[c] = [f] S[f] = [e, d] print(a) print(S.mttf) print(float(S.mttf)) print(S.reliability(t)) import pylab as p a, b = Component('a', 1e-5), Component('b', 1e-7) S = System()