VDA-German Automotive Industry Society describes process of system FMEA building. I would like to highlight 3 key areas of VDA approach: Functional analysis Failure analysis The process consists from following steps: Product breakdown to system levels Functional description of system Failure Analysis Risks Evaluation Risk Optimization First step is about definition of system. Team breakdown system into several level which depend on scope of analysis eg. sensor-sensing element-sensing element characteristics. Output of this step is system structure net. In second step team define requirements, functions and characteristics into each element of product structure. Logic behind is describe how requirements should be ensured by functions and characteristics/parameters. Objective …
dfmea
FMEA – Design or Process?
DFMEA is a Design FMEA performed on the product design PFMEA is a Process FMEA performed on the manufacturing process. Both are very useful and both techniques should be utilized. There is correlation between the two – one analysis could definitely influence the other, and often times a mitigation for a Design FMEA may be doing something different in the manufacturing process if it cannot be fixed by design alone. There are many other forms of FMEA such as User FMEA, Software FMEA, Functional FMEA and others. FMEA is a very powerful tool and you choose the type of FMEA based on the particular circumstance. Here is a short summary of my favorite 6 types: DESIGN FMEA Design FMEAs are performed on the product or system at the design level. The purpose is to analyze how failure modes …
