Equipment and component fault reliability data network analysis method

• Main Authors: HUANG BAWEI, GU CHUANJUN, LIAN JINBIN, FENG JIE, SHI WEIHUA, YANG YUN, ZHAN YUBIN, CHEN GUOCAI, WANG YUNXI
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention belongs to the technical field of nuclear power plant probabilistic safety analysis, and particularly relates to an equipment and component fault reliability data network analysis method, which comprises the following steps of: 1, carding a fault sequence failure logic relationship of each component of specific equipment; step 2, establishing a dynamic fault logic relation network for all the components listed in the step 1; step 3, establishing Markov chain logic; 4, establishing a PHM part life prediction failure probability and Markov chain logic interface; and step 5, quantifying the time-varying failure rate of the equipment. Based on the PHM and Markov chain technology, the time-varying reliability data of the equipment is obtained by performing fault diagnosis and life prediction on the parts of the specific equipment, and the time-varying reliability data is finally fed back to the PSA model so as to quantify the reactor shutdown risk, the reactor core damage risk and the massive radioac