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This article presents a way of describing reliability coefficients in the case of a 3-state model of airship maintenance with its renovation. The third state, which is full fitness loss (when it is impossible to conduct renovation), was added to the 2-state model of the airship maintenance including operational and non-operational state. Models with the exponential distribution were considered. A...
The subject of this paper concerns the way of an aircraft operation in which there are three states: the operational state "1", the state of repair "2", and the state of a complete loss of airworthiness "3". Transition between states results from the intensity of damages and repairs and the intensity of reaching the state of a complete lack of airworthiness. The paper...
Failures resulting from fatigue processes are a dangerous type of aircraft damages. This article presents an attempt to determine the probability of the occurrence of catastrophic failures of aircraft elements as a result of fatigue processes including basic stages, i.e. the crack initiation and the crack growth after the initiation in subcritical states. The possibility to assess the probability...
This article presents the outline of a method for the assessment of aircraft flight safety with the risk of failure. Despite efforts, appliance failures can occur. Appliance failures result in dangerous situations during flight. Cases of failures contribute to actions that have initiated the incorporation of backup systems into operations. These systems are aircraft units designed to prevent dangerous...
There is proposed the method of reliability analysis of a three-state system at variable operations conditions. Introduced are the notions of the conditional and unconditional the three-state system reliability functions, the mean values of system lifetimes in the reliability state subsets and in the particular reliability states, the system risk function, and the moment when the system risk function...
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