International Marine Engineering
By:Books Group,Books Group Staff
Published on 2012-05 by Rarebooksclub.com
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...Arthur R. Liddell. The method of constructing a curve of levers for the longitudinal stability of a ship is given, and this subject leads to the discussion of the safety of a vessel against foundering. It is pointed out that the safety would be greater than it usually is if vessels were made broader and deeper on given lengths and drafts than at present. The reasons why they are not so designed are: (1) That their tonnage would be greater and their dues heavier; (2) that thickness is now apportioned by the size of the vessel and not enough by the stresses which they have to withstand. The dues might very well be assessed upon some other basis that would not hamper design. If the tonnage system cannot be given up. deductions might be allowed: (a) For excess of surplus buoyancy over the standard; (b) for excess of length of the fore and after peaks over the amounts of 5 percent of the length forward and perhaps a little less aft now ruling, since both these surpluses make for increased safety. The greatest longitudinal stresses in a vessel occur about mid-length, and to relieve this part as much as possible the centers of gravity of the fore and after bodies respectively must be above or nearly above their centers of buoyancy. The part of the total stress due to weight distribution is thereby minimized. The part due to wave action, which is greatest in degree in the smallest and least in degree in the largest vessels, cannot be avoided. The third source of longitudinal stress--that due to water pressure--must be kept down as much as possible by suitable design of the framing. 2 illustrations. 2,600 words.--The Engineer, April 25. IVeight and Freight of Merchant Ships.--An editorial discussion of the paper read before the Liverpool Engineering Society by T. C....
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Book ID of International Marine Engineering's Books is tyG9LgEACAAJ, Book which was written byBooks Group,Books Group Staffhave ETAG "+GC3eTNs+KU"
Book which was published by Rarebooksclub.com since 2012-05 have ISBNs, ISBN 13 Code is 9781236373038 and ISBN 10 Code is 1236373030
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