Mechanical Design Consideration

Any reply would be more meaningful if you give a little more information. Is the environment hazardous because of gasses? If so are they volatile? or are they poisonous? Are there accumulations of dust, particularly explosive dust? Is the hazard to persons, machines, equipment, etc. Or are you hanging out on the side of a cliff and the hazard is standing on a slippery surface? You see why we need more info?

The environment is hazardous to human because the machines are to be used in a nuclear plant environment. Thanks

size of tooling? number tooling changes? tooling requirements?.....

I have first degree in mechanical engineering and msc. in offshore engineering. Actually the question is for a presentation that i am expected to give in an interview for a job offer. nothing more , the question is just the way i put it there.

thanks

I had a question simuliar in an interview about discribing a pastuerizuer.

What I had did is counter with information I needed, How many pounds/hour is required, Do you want regeneration? is this for milk, cream or another product?

The two engineers were stumped and did know what to say except this was imaginary, which surprised me, I answered these question myself, and when on to discribe the process

p911

It would help if you could tell us how far along you are with your education.

I have first degree in mechanical engineering and msc. in offshore engineering. Actually question is for a presentation that i am expected to give in an interview for a job offer

Design considerations can be found in any text book you can google design considerations.......... Or for a fee our business can taylor a complete solution but that would cost money. For all you mechanical design issues solved contact ALNO Product Services http://www.alnoproductservices.com.au

I was told to limit the design consideration to remote handling machine not just any mechanical machine.

Perform a DFMEA on this design project.

Inputs Include:

Interface matrix – (i.e. the other parts the part physically touches, energy transfer (wiring), material exchange with the system)

Boundary diagram - Shows visually were the system starts and stops (helps the design team focus on their area of concern.

P-diagram – describes noise factors, control factors, ideal function and error states (both desired and undesired) – e.g. Tire wear due to climate change and road conditions

You need to concider the environment that the remote roover will operate (ensure that it is electrically isolated). Also think of any possible missues of the product and design for safety.

what are the mechanical design considerations?

The tricky part of this will be anticipating the various approach problems, such as can you roll a device to it or is the area so inaccessible that you will need to find a fixed point of approach.

If you look at a fairly routine task such as putting a freeze on a pipe so that you can remove a valve from a pressurized line, you are immediately faced with some very routine tasks that are going to be problematic. First off you are working in a highly contaminated area or you wouldn't be looking at robotics. Anything you remove that can't be left in the space is going to have to be de-contaminated or disposed of.The piping is probably going to be insulated this needs to be removed and accounted for. You have to get access and install the freeze equipment along with temporary instrumentation and on and on.

The nuclear industry is procedure oriented and does not as a rule go blindly into any project. Try to present yourself as a checklist type with a desire to work with the team.

Good luck with your interview.

primary side or secondary side,

Spent fuel handling, Spent fuel pool or transfer canal

New fuel Loading, fuel cell handling

Partially consumed fuel re-positioning in the core.

Distance of the control station from the work zone

Video signal fidelity

Control signal fidelity, redundancy

Is the medium water or gas or liquid metal

Depth of water, etc

Temperature of water, etc

Pressure level inside containment at the work zone

Payload required - is it a manipulator, torqing, twisting, carrying.

What is the travel path from start to work zone, signal and power line routing

How long is the work window, is it a scheduled outage or an unanticipated shutdown due to a plant trip.

Is it a critical safety issue

Flux density, how close to the core will you be working

How often do you want to use this tool - contamination

Where do you park the tool when not in use

How do you ensure that all parts remain with the tool

Conductivity of the water

PH / chemical make-up of the water

and a few thousand more, the unfortunate answer is it all depends on what you need to do and where you are going to do it, paricularly in the nuclear industry. In principle good robotic design practices will produce a tool to satisfy the task, then you can layer on top all of the special environmental, safety and regulatory requirements. A lot of reading!