DFMEA (Design FMEA) for a New Line Operation of the Underground Operation

[sawataq]

Hello,

I was asked to write a DFMEA at the framework of a new line operation of the underground and i'm kind of comfused.

Could you pleeeeease help?

I don't know which my items/functions should be

Thank you very much in advance

[Marc]

Underground as in subway (transit system)?

[sawataq]

yes!
thank you

[Marc]

This is very unique for here. And it's Friday so things are slowing down for the weekend. So - Responses may not come fast. I just wanted to clarify the scenario a bit. Let's see what happens from here.

When you say "Framework" - Can you tell us a bit more precisely what a Framework is?

[sawataq]

Imagine that you are a member of the operation designing team and a new subway network is about to start operating. Sorry for my bad English. By the word framework i meant that this new network is about to start operating.

[Pudge 72]

Well,
In my opinion, we need to understand the scope. Is this DFMEA responsible for Failure Modes across the entire system / project ; mechanical, computer, electrical, grid, layout etc. - or do you have a focused area that you are specifically responsible for? Are we looking at this from a technical perspective, or from the perspective of understanding risk within the process / system.
If we can understand what it is that you are tying to identify - then I think that we can go from there.

It's kind of like the difference between being on the Team that is designing the car door, or being on the Team that is designing the car. In the end, DFMEA will serve the same purpose for both groups and they will use the same tools, but their focus, starting point and scope is quite different regardless of whether or not they are at the DFMEA stage or PFMEA stage.

[Marc]

That's what I was thinking, Pudge. sawataq still has to better define the scope of the Design FMEA (DFMEA). From what it sounds like the tunnels are dug, the trains are ready as are the terminals (stations). I'm wondering if this is for passenger traffic control and aspects such as that.

sawataq does specify that the focus in on "operations", but that still is a large scope. There is everything from the passenger aspects to train operators and station agents, etc. The further sawataq can define the scope of his project the better we can help.

[sawataq]

I have to submit a project to my university and in my opinion it's all about understanding risk within the process / system, as Pudge 72 said.

As far as i can understand, the trains, the stations etc are ready. I was asked to write a flow chart, find the risks in each level of the flow chart and finally write the DFMEA.

Before that, I had to find passengers' requirements and determine quality criteria for each requirement.
Sorry, but i cannot be more specific because unfortunately i don't know any further information

Thank you