一种轴流风机的寿命预估方法  

A Life Prediction Method of Axial Flow Fan

作　　者：吕倩[1] 乔纬韬 

机构地区：[1]西南电子技术研究所,四川成都610036

出　　处：《机电工程技术》2018年第1期37-40,共4页Mechanical & Electrical Engineering Technology

基　　金：国防基础科研计划资助项目(编号:JCKY2013210B004)

摘　　要：在航空平台领域,电子设备散热广泛采用强迫风冷散热。轴流风扇通常工作在恶劣环境条件下,因此发展针对轴流风机的寿命预测方法已经刻不容缓。按照IPC9591标准,实验所需时间代价和样本数要求都十分严格。针对电子元器件进行高温加速实验,参照阿伦尼斯模型计算加速因子,用高温加速实验结果近似等效常规实验条件;采用可靠性评估的方法对风机实验结果进行分析,以此对轴流风机的寿命做出估计。In the field of aviation platform, forced air cooling is widely used for electronic devices. Axial flow fan usually works under harsh environment conditions, therefore, it is of great urgency to develop a life prediction method. According to the IPC 9591 standard, the time cost and number of samples of the fan life experiment are particularly strict. Considering the temperature acceleration experiment of electronic devices, the high-temperature experimental result can be converted to ordinary result according to acceleration factor of the Arrhenius Model, the life of the axial flow fan can be estimated by analyzing the fan experimental result with the reliability assessment method.

关 键 词：轴流风机 加速实验 加速因子 可靠性评估 

分 类 号：V243[航空宇航科学与技术—飞行器设计]