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Recent content by GraemeMath

  1. GraemeMath

    Deep sea currents

    Thanks JL. Sorry I completely forgot to log on to thank you for the link earlier. Unfortunately, it wasn't quite what I was looking for. If anyone else is reading this thread looking for similar data I have found a good site at: http://www.ndbc.noaa.gov/maps/ADCP_WestGulf.shtml It has a list...
  2. GraemeMath

    Deep sea currents

    Hello all, Does anyone know where I can find information on deep sea currents in deep sea drilling areas? I need them so I can analyse the behavour of a frame being lowered through the water column to 10,000 feet. Any help appreciated. Thanks, Graeme
  3. GraemeMath

    Compact power supply

    Thanks Scotty. I had a look on the RS website. I think that might be the problem for me. Too much to choose from, since I don't really know exactly what to look for. I think we are going to use jraef's recommendation. It is only £34.00 too, which is quite reasonable I thought. And it's even...
  4. GraemeMath

    Compact power supply

    ps. I just realised I put 7x7x4 inches in my first post. That is quite massive now that I have seen these other two supplies!
  5. GraemeMath

    Compact power supply

    Oh god, you've lost me with some of this. Ha ha. That Omron one is only 80x80x37 mm, which I thought wasn't too bad. I'm in the UK, it is running from mains voltage (240V), wattage is not important (I don't think), noise etc is definately not an issue. I do not need current limiting. I'll...
  6. GraemeMath

    Compact power supply

    I found a power supply that I think would be suitable. It's called an Omron S8VM-01524A. Has anyone heard of them before? http://www.omron-industrial.com/uk/home/products/controlcomponents/PowerSupplies/SinglePhase/S8VM/default.asp
  7. GraemeMath

    Compact power supply

    Hi folks. I'm looking for a very compact, 24V power supply that has a minimum current of 400mA. A rough idea of the volume would be about 7x7x4 inches. Is that an unreasonably small size to expect? Have you had any experience of good compact power supplies? Or have you any recommendations...
  8. GraemeMath

    Cylinder end failing at pressure.

    It's a bored out cylinder that has to contain 15,000 PSI. I think I have managed now. I used an equation from 27th edition Machinery Handbook instead, under the "Plates, shells and cylinders", page 294, equations a) and b) Thanks, Graeme
  9. GraemeMath

    Cylinder end failing at pressure.

    I think I have found the right part. Is it th4e Discontinuity Stresses part I should be looking at? If so, I'm not having much luck following it.
  10. GraemeMath

    Cylinder end failing at pressure.

    Thanks cbrn. I work for Expro North Sea Limited, and they seem to use ASME, and I just an extract from the ASME standards. Thanks, Graeme Mathieson
  11. GraemeMath

    Cylinder end failing at pressure.

    Ah, I just asked one of the other engineers I work with and our company has access to them. I've not been working in the real engineering world for long.
  12. GraemeMath

    Cylinder end failing at pressure.

    Thanks for the fast reply. Where would I find these codes?
  13. GraemeMath

    Cylinder end failing at pressure.

    Hello, had a quick look on the search but couldn't find anything unfortunatly. I'm designing a tool casing (basically a cylinder with a capped end) that will have to withstand 15000PSI. I'm wondering how you go about calculatin how thick the end wall has to be to prevent it from blowing out...
  14. GraemeMath

    Lock-tight recommendations?

    Cheers folks. Good input. The plate is brass, not copper. I put copper by mistake in my first post. Thanks, Graeme
  15. GraemeMath

    Lock-tight recommendations?

    Ok guys, got this sorted. I was wrong with the temperature range. It shouldn't be any higher than 150C, so the medium strength loctite should suffice. Thanks for all the input. Regards, Graeme
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