| Autor: |
Xiao-Xiao Shang, Zhou Tianmi, Qian Yugang, Zhu Guixia, Qin Feng |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
2019 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering (QR2MSE). |
| DOI: |
10.1109/qr2mse46217.2019.9021266 |
| Popis: |
Many imported AC to DC power supply modules have been used in a certain nuclear power station. The failure rate of these power supply modules has been increasing after five years’ operation. If applying new power supply modules to replace the failure modules, the cost will be enormous. In order to reduce the cost, work has been done to invest manpower in failure analysis and maintenance of the failure modules and collect lots of data in continuous repairing and preventive maintenance work. This paper analyses the failure data and maintenance data of power supply module, uses Minitab tool to fit the analysis data, obtains the parameters needed for the reliability model, and then calculates the reliability and failure rate of power supply modules. Finally, the cost of new spare parts was calculated according to the failure analysis data if replacing failed modules with new modules each year, and the annual economic returns which base on failure modules repairing and preventive maintenance. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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