Research on Equipment Reliability Index Qualification Connotation
For disputes on index assessment object and time in the reliability qualification process, based on analyzing the index definition, the solution by means of combining engineering background and statistical theory is provided.Firstly, it expounds the development history of reliability index home and abroad, and explains the causes that arouse the controversy from the aspect of engineering by making contrasts and comparisons.Secondly, it analyzes the reliability index qualification methods, demonstrates the statistical connotation and engineering connotation with interval estimation, and makes it clear that minimum acceptable values are used as index assessment objects.Finally, in combination with the equipment reliability growth process, the suggestion of multi-stage assessment is proposed that minimum acceptable values be assessed in approval stage and the specified values be assessed in operational test stage.
reliability indexqualification methodqualification timingdevelopment history