QUESTION 4
Consider an electrical component that can fail in two modes: short-circuit and open-circuit modes. Develop a Markov diagram using the following parameters:
λ0, μ0 failure and repair rates for open-circuit mode
$$ \lambda _s, \mu_s$$ failure and repair rates for short-circuit mode
a. Derive the differential equations for the state probabilities.
b. Find the steady-state probabilities and calculate the steady-state availability.
c. Now consider the short-circuit failure to be non-repairable. Develop an expression for the MTTF.
d. Suppose now that both failure modes are non-repairable. What is the reliability as a function of time?
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