Modeling of Try-Out and Reliability Estimation of Technological Processes of Machine-Building Products

Materials about try-out of technological processes of machine-building products have been represented in the article. Theoretical and practical issues about the development of mathematical models and techniques of estimation of reliability of technological processes have been stated. The first model of technological process mastering has been considered, and the formula of intensity of removal of failure causes and analogous formula after the second stage of mastering have been represented as well. According to the theory of Markov processes, formula of estimation of probability of absence of failures at increase of try-out time t -> infinity after the second stage of mastering has been represented. The technique of reliability estimation on the second model has been represented which is based on the multi-stage procedure of technological process mastering. The formulas for estimation of reliability index have been represented when N types of failures occur at technological try-out of products. The models of curves of reliability growth at try-out of technological processes have been represented when failures revealed in the process of technological try-out obey different distribution laws.