失效模式分析.pdf

文档介绍：: .
the early
concept and design stages
系统 – 用于分析早期的概念和设计时间的系统
7Summary 概要
– Identifies known and potential failure modes;
识别已知和潜在的失效模式
– Identifies the causes and effects of each failure mode;
识别每一种失效模式的原因和后果
– Prioritizes the failure modes (using the RPN);
利用风险序数 （RPN）给失效模式排序
– Should initiate corrective action where needed.
必要时提出纠正措施
8Timing of an FMEA
FMEA的时机
◼ FMEA’s should be initiated when preliminary
drawings of the design or process are available
当初步的设计图纸和工艺被制定出来时应开始做
FMEA
◼ Updated as identified issues are resolved
当被发现的问题解决后要更新FMEA
◼ Can be used on existing products to improve quality
可用于现有的产品以提高质量
9System FMEA treats
system as a“functional
◼
System系统 schematic”
– Wiring harness
线束 系统FMEA从“功能关系
– Electronic module 图”入手来考虑
电控模块
– Assembly
总成
10 : .
1 : .
1 : .
An analytical tool for identifying Potential
Failures in a product or process so that
corrective action can be ta