摘要
浴缸形状的失效率函数因其能够捕捉某些实际情境中的故障率特征,在机械结构可靠性分析中至关重要。引入一种修正广义幂威布尔(Modified Power Generalized Weibull,MPGW)分布,能够建模表征浴缸形状的失效率变化规律。为评估该模型的有效性,本研究使用了压力蒸汽灭菌器故障数据集进行实证研究,并将其性能与5种经典分布模型进行了比较,发现该模型在灵活性上具有较大优势。
The hazard rate function with a bathtub⁃shaped curve is crucial in reliability engineering due to its ability to capture certain observed failure rate characteristics in real⁃world scenarios.This study introduces a novel MPGW(Modified Power Generalized Weibull)distribution capable of modeling hazard rate function exhibiting a bathtub shape.To evaluate the effectiveness of this model,the study conducted empirical research using a dataset of pressure steam sterilizer failures and compared its performance to 5 classical distribution models,the results indicated that this model exhibits significant advantages in terms of flexibility.
作者
钟添萍
ZHONG TianPing(Nanjing Stomatological Hospital,Affiliated Hospital of Medical School,Research Institute of Stomatology,Nanjing University,Nanjing 210008,China)
出处
《机械强度》
CAS
CSCD
北大核心
2024年第1期115-121,共7页
Journal of Mechanical Strength
基金
江苏省医学协会医院管理创新研究课题,面上指导项目(JSYGY-3-2023-344)资助
