Reliability evaluation method and algorithm for electromechanical product
来源期刊：中南大学学报(英文版)2014年第10期
论文作者：LIU Yong-jun(刘勇军) FAN Jin-wei(范晋伟) LI Yun(李云)
文章页码：3753 - 3761
Key words：reliability evaluation; mean time between failures; probability density function; electromechanical product
Abstract: The reliability of electromechanical product is usually determined by the fault number and working time traditionally. The shortcoming of this method is that the product must be in service. To design and enhance the reliability of the electromechanical product, the reliability evaluation method must be feasible and correct. Reliability evaluation method and algorithm were proposed. The reliability of product can be calculated by the reliability of subsystems which can be gained by experiment or historical data. The reliability of the machining center was evaluated by the method and algorithm as one example. The calculation result shows that the solution accuracy of mean time between failures is 97.4% calculated by the method proposed in this article compared by the traditional method. The method and algorithm can be used to evaluate the reliability of electromechanical product before it is in service.
LIU Yong-jun(刘勇军), FAN Jin-wei(范晋伟), LI Yun(李云)
(College of Electromechanical Engineering and Applied Electronics Technology,
Beijing University of Technology, Beijing 100124, China)
Abstract:The reliability of electromechanical product is usually determined by the fault number and working time traditionally. The shortcoming of this method is that the product must be in service. To design and enhance the reliability of the electromechanical product, the reliability evaluation method must be feasible and correct. Reliability evaluation method and algorithm were proposed. The reliability of product can be calculated by the reliability of subsystems which can be gained by experiment or historical data. The reliability of the machining center was evaluated by the method and algorithm as one example. The calculation result shows that the solution accuracy of mean time between failures is 97.4% calculated by the method proposed in this article compared by the traditional method. The method and algorithm can be used to evaluate the reliability of electromechanical product before it is in service.
Key words:reliability evaluation; mean time between failures; probability density function; electromechanical product
