On 𝜹-shock model with a change point in intershock time distribution



Journal Title

Journal ISSN

Volume Title


Statistics & Probability Letters


In this paper, we study the reliability of a system that works under 𝛿-shock model. That is, the system failure occurs when the time between two successive shocks is less than a given thresh old 𝛿. In a traditional setup of the 𝛿 shock model, the intershock times are assumed to have the same distribution. In the present setup, a change occurs in the distribution of the intershock times due to an environmental effect. Thus, the distribution of the intershock times changes after a random number of shocks. The reliability of the system is studied under this change point setup.


Published by Statistics & Probability Letters, DOI 10.1016/j.spl.2024.110046


Change point, Reliability, Shock model, MTTF, Discrete phase-type distribution.


DOI 10.1016/j.spl.2024.110046