need naval engineer or architect. have question.
 

Building steel boats or ships.....have some questions about steel ibeams. Would love to talk to you about it and maybe hire for our company. Just starting out . Please have mercy.:party-smiley-004:

Call me or send me your number to call you. Thanks, joe
908,963,2513
[email protected]

I am just about to graduate as a Nav. Arch...I saw your posts and my suggestion is to hire someone to help you with the entire project, your posts in your other thread gave me the impression that you have very little basic knowledge of what your project is going to take to complete, and the amount of engieering that would be required.

You may want to try contacting the University of New Orleans, or University of Michigan's naval architecture departments to see if you may be able to find a student to take on the project...this would be a good way to get some of the basic design done cheap.

Darron is a good friend of mine, I'll send him your info.

http://www.shorebreakmarine.com/index.htm

Yup, for a project of this scale they needs a naval architectural team to do a preliminary design followed by reviews for systems and systems integration once requirements and components are identified. Then prototype and test.
ed

Thanks guys. Fabrication, design , layout , mechnicals, wiring,plumbing, paint, engines, etc. Etc, is no problem. Ive been doing this about 35 years.( on land) I have one specific question about a particular peice of steel (i-beam) and strength and deflection of it when mounted across three floating platforms. ( tri-hull) . I have no problem if it was stationary on land, but somehow adding water always seams to put a twist on things.
Also am looking for the right person to have on hand or directly on staff because i know we will need certifcation on all this stuff. I can design, draw and and actually build any part of it. But someone certified will need to go over it and sign off on it.
Joe

I think that you're already setting yourself up for problems if you want to say you know how to do everything, but have never worked with a large marine project the mechanical systems will be very different.

You will also not find a PE that is willing to sign off on calcs that have been done by someone without a degree, since by signing off on those parts of the project they then own the risk if something goes wrong.

My best piece of advice is to sit down and lay out exactly what you think you need from a naval architect, so that you can go into your initial meeting with a good idea of what you know and dont know.

Joe , I would use a box beam
and until you get help onboard there are beam calculator's On Line , BTW Please keep us updated and Good Luck .

Dont get me wrong. I am not trying to sound like a know it all, iam not. Every man has to know his limitations. The only reason i said i could design and have an engineer go over it, is because we have been waiting for months for our people to finish some designs for us now.... we got them back , and guess what, they are nothing like what we asked for..... so i must " design" or draw something, then give it to someone competent to " engineer" ,thats what i am getting at. You cant just say i want red. You have to give them an example. And i dont have time to wait for 5 different people to show me their idea of red, when i can just show them and they can tell me how to makeit work and save a lotof time. When i design or "draw " a building or a prototype vehicle that i am building, then i give to an engineer, and he "engineers" it , and gives me back the plans. Thats the normal way it works.

What is the difficult part of the mecanical systems you spoke about? Engine and drive placement?
Center of gravity?
Hull displacement?
Heating and cooling?
Electric distribution?
Thats the easy stuff. Thats all done.
This is a 150,000 lbs vessel not a speed boat. YET:evilb:

I value your input. Do not think i am being sarcastic. Sometimes its hard to tell in type...

I used to spend a lot of time on here helping people with problems they had with their boats, trucks, trailer, house, whatever.. now i figure the great people on OSO may be able to return a little help. Thank you, joe

Thanks steve! Yeah, the calculators dont have a input for waves though..:drink:

Steve 1 , i love your website. Who designed it?

"The only reason i said i could design and have an engineer go over it, is because we have been waiting for months for our people to finish some designs for us now.... we got them back , and guess what, they are nothing like what we asked for..... "

As I said before you must go into your project with a solid statement of requirements, and specs for what you want on the vessel...If you dont have experience in this area a competent Nav. Arch can help you put it together as well.

As far as the difficulty in engineering the mechanical side of things space is going to drive alot of your decisions. You have to be able to plan before building the space requirements for all of those systems and how you are going to route them through the public spaces, this can drive decisions for the entire project from the location of a run of conduit, to requiring modifications to the structural design. The "Green" systems that you talked about in your other posts also tend to be space intensive and require a lot of ancillaries all of which needs to be considered.

At a basic first pass level you can get an idea of the strength required by the vessel by treating it like a simply supported beam. This is a simple way of accounting for wave forces as it basically treats the boat as if it were sitting on the crests of two waves at the bow and stern.

Maybe we could talk about it? It would be easier to explain my question that way. Maybe you would like to be involved with the project?

Thank you for the offer, but unfortunately the company that I am working for does not allow it Engineering staff to work on outside projects.

boot. ! While really no on here knows exactly what you are trying to do, don't shrug off their comments.
You are referencing an "i" beam. Or are you really want a "Wide flange" beam, WF. There are tables all over the net to show deflections and strengths of materials. I never built a barge of a floating vessel, but I have build structures over water and the wave actions need to be designed and not all that simple as you think. Besides the "actual deflection" upon a vertical or horizontal load you have to concider flexing, tortion. moments and alike. A floating vessel will have ALL of those and in a variable dynamics configuration. Meaning loads and strees will move. From the top of my head I would say it is similar to seismic loads like the building we build and design in CA. THey are not "stiff" like buildings in Chicago. With seismic and variable load and stress conditions things need to move. Then you got expansion coefficients based on air and water temperatures and differences. The size of vessel you are referencing, I would not even consider a “solid” beam. “I” or WF, or even a structural tube, but a tri angular or tubular joist system like cranes have. Cranes allow for flexing, in several direction. An experienced designer would save you a world of hurt.

I would think something like you are describing has to have a USCG certfication doesnt it? I would think they would want to see engineered drawings from a Naval Architect, I have no experience in this just guessing. My buddy that I posted has been doing it for 20 yrs, give him a call.