вертикальная диафрагма

14:29 Jul 3, 2012 

Any load is transferred from structural panels to stiffeners that protect a hull against overloading. Ребра жесткости. These can be transverse or longitudinal - in a range of ship frames. Positioned @ mitre, normally.
Webs are referred to braces, the supporting elements in hull sections. They might be installed both in horizontal or vertical planes.

14:20 Jul 3, 2012 

Thanks for the discussion, guys. You all strike me as top-notch experts on the subject. Your help is greatly appreciated ... Correct me if I'm wrong (this is where things are getting a bit confusing): Isn't "stiffener" a common "ребро жесткости", while "webs" = "связи" in the context of a ship's hull? At least that's how I have been translating them all along. Your discussion seems to imply something else. Or am I reading between the lines too much?

13:34 Jul 3, 2012 

There was no offence, I assure you) I appreciate your qualification, but it does not always matter, people may mistake. And again, I don't enthrone this term as the only right, you should know that in translation practice it is a common thing when certain companies use diverse terms for the same concepts

13:29 Jul 3, 2012 

I've been contracted for hull engineering for a couple of years. We never used terms like web plates for the rudder vertical diaphragms.
I beg your pardon but webs are outta there. You know, stiffeners could be installed right in situ where a big deal of loading may affect :-)
I see the simpliest way out. Not confusing anyone for God's sake.

13:23 Jul 3, 2012 

So, you think that is not a stiffener? It seems the same thing described in the materials I referred to. Your referrence once again support the idea of reinforcing the rudder... I don't claim "vertical web plate" is the only term that can be used in here, but I am sure it is no inferior to your "diaphragm". Read more in your referrence: "Diaphragm Plates
Vertical and horizontal diaphragms are to be fitted within the rudder, effectively attached to each other
and to the side plating."

13:13 Jul 3, 2012 

Thanks, Levis. I don't think that my humble 2 cents' qualify for a separate answer - I just meant to say that the sketch is sort of self-explanatory (i.e. a vertical plate, a supporting vertical divider of sorts) and the term doesn't sound wrong or misleading ))

13:09 Jul 3, 2012 

I bet 5 US dollars $$$$$-)
The mainpiece of the rudder is to be formed by the rudder side plating (but not more than the effective width indicated above) and vertical diaphragms extending the length of the rudder or the extension of the rudder stock or a combination of both. Ref below.

13:02 Jul 3, 2012 

it should not necessarily be a ребро because the blade is stiffened both with ребро and вертикальная диафрагма http://www.seaships.ru/steering.htm

12:58 Jul 3, 2012 

are welcome! Add some letters in the Answer Field pls ;-)
My contra as for web plate.
In hull structures it is for the stiffeners to strengthen hull construction.
Judging by the figure the thing is not ребро. It is a plate positioned upwards.

12:32 Jul 3, 2012 

That's reassuring. Thanks. Feel free to post the answer... Could it be something as simple as a "vertical plate"?

12:17 Jul 3, 2012 

it seems pretty to me

12:10 Jul 3, 2012 

I wouldn't bet my life on it, but based on the sketch you are referring to the "vertical diaphragm" term looks all right...