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  1. hydrac

    Best Schools (Grad/Undrgrd) for Acoustical Engineering for Defense

    Yeah, a lot of what I've seen is NAVY related ( granted my background is ocean engineering), mostly ship signatures stuff like making ships/submarines quiet, or changing what they sound like. I've heard of the drug runners use a device sometimes which will change the sound of their "submarines"...
  2. hydrac

    Best Schools (Grad/Undrgrd) for Acoustical Engineering for Defense

    Sorry for the double post but I couldn't find an edit button. Virginia Tech also does a lot of aeroacoustics. They just built a brand new quiet flow facility, and I think they get government grants quite often.
  3. hydrac

    Best Schools (Grad/Undrgrd) for Acoustical Engineering for Defense

    I'm fairly biased in this matter as I just did an acoustical masters. My school, FAU in south Florida, has multiple professors working in acoustics. Mostly the work is hydroacoustics as the program used to be Ocean Engineering, but within that there's a professor who I think is well ingrained...
  4. hydrac

    Christmas Bonus

    We were just given Starbucks gift cards the other day from the head of engineering in our department. I don't know whether it was expensed or straight out of pocket from him though.
  5. hydrac

    Find leak/hole on a submerged pipeline in dirty water using Infra-Red

    I've only been in the ROV industry a short time, so I could be a bit off. I think that IR was used by research vehicles right after Deepwater Horizon, and I'm pretty sure that I've seen IR underwater before. Maybe FLIR makes something? If not, all you would really need is some kind of...
  6. hydrac

    Lost in Translation

    Hello, I've recently been assigned a project doing analysis of a structure. The problem is that the structure is in Brasil, and thus the drawings I've been given are in portuguese. All I have to go by for the beam specifications is that they are Viga I 36" and Viga I 12" Alma 2deg which as...
  7. hydrac

    Shock loading

    Yeah, I've been told that most things are designed with a safety factor of 2. I've also been told that 2*Design Load is the rule of thumb that is used. I was asked to derive the math behind what the impulse felt is, which is why I figured I'd ask around.
  8. hydrac

    Suggested Readings for Engr Students

    One that I'm glad my professor made us read was " The Practical Oceanographer. http://fermi.jhuapl.edu/book/ Deals with what it takes working offshore, how to plan before implementation, and dealing with uncertainty.
  9. hydrac

    Shock loading

    I've got a payload being lowered over the side of a ship. I'm interested in the shock loading experienced by the cable due to wave interactions. So far, I know I need to consider the impulse force F=mv/t due to the payload being possibly lifted by a wave and then dropped to the trough, so find...
  10. hydrac

    Hidden bodies selectable?

    I like to use "select other" for situations like that, you can keep everything shown and then right click to clear away the surfaces on an as-need basis
  11. hydrac

    external volume

    Thanks, that was the conclusion I had come to, I was just hoping I had missed something
  12. hydrac

    external volume

    Sorry, thought I forgot something. I was trying to make the part watertight by using fill to plug all the holes, but when I check the model, every fill still showed up as an open feature. knitting the part doesn't work, although I was able to thicken...
  13. hydrac

    external volume

    Hi, I am trying to turn a part made of primarily surface bodies into a solid body so that I can do a combine>subtract to find the internal volume. When I try to fill the multiple holes in the part, I cannot select "merge result" or "form solid" which creates problems with the subtract...

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