Department of Safety Engineering - Projects
Projects List
Abstract

Development of an estimate method of determining the probability of the loss of the safety function by control systems of machines

Project manager: Marek Dźwiarek Ph.D. (Eng.), D.Sc. (Eng.)

Project summary:

The aim of the task was to provide designers of machinery and industrial automation systems with an accessible and relatively simple method of assessing machinery control systems regarding resistance to defects, especially accidental ones. This aim was met thus: - data indispensible for carrying out a robust probabilistic analysis of resistance to defects of selected control systems of machines were determined, - a robust probabilistic analysis of resistance to defects of selected control systems of machines was carried out, - a simplified method of assessing resistance of machinery control systems to defects, which makes determining the frequency of their periodic inspections simple was developed. The developed method was verified with practical examples of three control systems that have the safety function in machines. Using the developed methods makes it possible to determine the level of ensuring safety that has been achieved for these systems and to determine the recommended frequency of their periodic inspections. The results of the task follow: - a probabilistic method of estimating the certainty of the safety function by the machine control systems, - practical examples of the way the developed method can be used.



Unit: Department of Safety Engineering

Duration: 01.01.2008 – 30.12.2010