ABSTRACT
This elaboration is an attempt to present a reliability assessment model of a technical object in the aspect of a catastrophic damage. As the technical object a mechanical device was adopted, in which, between operating elements a jamming may occur and as a diagnostic parameter—the operating time of device t. Determining the distribution of device operating time until jamming appeared was based on the Yule’s process modified by Gercbach and Kordoński. Due to the adopted simplifications in recording of the above-mentioned model, the process of defining final equations was identified. This process, in a discrete system, depends on the system of equations typical for the accrual process of the diagnostic parameter. By performing a transformation of these equations the formula was determined for reliability of the technical object and density function of the object operating time until the catastrophic damage is found in the form of jamming.
