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Hull Flexing
On a tanker, Dresser couplings are used less for temperature
fluctuations, than for longitudinal flexing due to load and or working in a seaway. The same would apply to the flex joints that DSK was talking about. otn The_navigator© wrote: They are common in engineering in an pipe system that is exposed to wide temperatuire fluctualtions. Cheers MC otnmbrd wrote: About the only place I've seen "expansion joints", is on Navy ships (which is not to say some passenger ships might have them). On a tanker, the only place you'll see them will be on catwalks and in piping (G can get downright squeaky). Tankers, being built with longitudinal framing, tend to bend more, in that direction. otn DSK wrote: otnmbrd wrote: Doesn't really matter what size the boat is, you will get some degree of "flex", especially when you remove it from the water and put it on a hard stand. BG you want to see flex, you should watch and listen to a large tanker at sea, or watch one go from hog to sag when loading. Sure. Why else would they build expansion joints into the upper decks of big (or even medium-sized) ships? |
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