实践证明大多数设备的故障率是时间的函数,典型故障曲线称之为浴盆曲线(Bathtub curve,失效率曲线)。浴盆曲线是指产品从投入到报废为止的整个寿命周期内,其可靠性的变化呈现一定的规律。如果取产品的失效率作为产品的可靠性特征值,它是以使用时间为横坐标,以失效率为纵坐标的一条曲线,曲线的形状呈两头高,中间低,有些像浴盆,所以称为“浴盆曲线”,曲线具有明显的阶段性,失效率随使用时间变化分为三个阶段:早期失效期、偶然失效期和耗损失效期。
Backblaze历年使用的硬盘数量 浴盆曲线(Bathtub Curve):工程师用这个名词表示产品预期故障率随时间的变化情况。浴盆曲线是指产品从投入到报废为止的整个寿命周期内,其可靠性的变化呈...
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可靠性描述和浴盆曲线 Reliability description and bathtub curve ; Reliability deion and bathtub curve
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第3章在对零部件故障浴盆曲线分析的基础上,探讨零部件回收率的变化规律,并通过维修数据仿真模拟零部件回收量分布概率。
The recycling rate of reusable spare parts and spare parts U-shape curve is analyzed in Chapter 3 with simulating distribution by data of after-sale activity.
针对国内斯特林制冷机可靠性处于浴盆曲线前端的现状,提出当前斯特林制冷机工程化解决加工、装配误差等引起早期失效的问题。
As the Stirling cryocoolers' reliability is at foreside of bathtub curve, the earlier failure problem of refrigerator, which results from manufacture and assembly process, should be solved.
强度退化时,可靠度随时间降低较为明显,失效率具有“浴盆”曲线的特征。
When strength degenerates, reliability decreases with time more obviously, and the failure rate has the feature of a bathtub curve.
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