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为了延长机械设备的使用寿命和避免因设备零件故障而带来的经济损失,提出了针对机械设备零件预防性更换的概念。介绍了机械零件的可靠度和失效率,将寿命分布函数威布尔分布引入到机械零件的平均寿命上,在此基础上提出了预防性更换策略。研究表明,对于机械零件寿命服从威布尔分布的零件,预防性更换策略对于机械零件可靠使用寿命以及准确合理的维修具有很大的指导意义。
In order to prolong the service life of mechanical equipment and avoid the economic loss caused by equipment parts failure, the concept of preventative replacement of mechanical equipment parts was proposed. The reliability and failure rate of mechanical parts were introduced. The Weibull distribution of life distribution function was introduced into the average life span of mechanical parts. Based on this, a preventive replacement strategy was proposed. Research shows that for the life of mechanical parts obey Weibull distributed parts, preventive replacement strategy for the reliable service life of mechanical parts and accurate and reasonable maintenance of great guiding significance.