Simulační odhad provozní spolehlivosti strojních systémů

Abstract

The dissertation deals with simulating estimation of operating reliability of mechanical systems. It is concentrated on probability assessment of mechanical systems operating safety. In the introduction, the actual state of art such as deterministic and probability calculations are presented. The further chapters specify details in the field of systems reliability, the definitions, terms and reliability parameters are determined. The important chapter is the theory of system reliability where are presented assessment procedures of element position in the system. Beside it, there are specified methods and reliability analysis including details of SBRA – Simulation-Based Reliability Assessment and FTA – Fault Tree Analysis. The knowledge mentioned above is applied into a reliability analysis of two chosen mechanical systems – telescopic articular shaft with sliding embedding and probability check of planning knife fixation at planning table for wood. The main aim of the dissertation is simulating estimation of operating reliability of elements in the system in the view of variable load for created database of random variable, frequency. The acquired information is compared by deterministic assessment of operating safety and lifetime of the systems.