Intro to Naval Architecture 3E Episode 7 ppsx

... 8.3: RESISTANCE 177 In verbal debate ® and (g) are referred to as 'circular M' and 'circular B' and so on. To cover the ship's performance Froude introduced: with ... the format. RESISTANCE 1 97 Figure 8.10 Contours of frictional resistance in pounds per ton displacement for 500ft ship Figure 8.11 Taylor's contours of residuary...

Ngày tải lên: 13/08/2014, 16:22

... 47 48 to 55 56 to 63 64 and over speed (m/s) 0.3 0.3 to 1.5 1.6 to 3,3 3.4 to 5.4 5.5 to 7. 9 8.0 to 10 .7 10.8 to 13.8 13.9 to 17. 1 17, 2 to 20 .7 20.8 to 24,4 24.5 to 28.4 28.5 to ... breeze 7 Near gale 8 Gale 9 Strong gale 10 Storm 1 1 Violent storm 12 Hurricane Limits oj (knots) I 1 to 3 4 to 6 7 to 10 11 to 16 17 to 2...

Ngày tải lên: 13/08/2014, 16:22

... intentionally left blank Introduction to Naval Architecture Introduction to Naval Architecture Third Edition E. C. Tupper, BSc, CEng, RCNC, FRINA, WhSch OXFORD AMSTERDAM BOSTON LONDON NEW ... published as Naval Architecture for Marine Engineers, 1 975 Reprinted 1 978 , 1981 Second edition published as Muckle's Naval Architecture, 19 87 Third editi...

Ngày tải lên: 13/08/2014, 16:22

... of ordinates 2 3 4 5 6 7 8 9 10 Spacing each side of origin -r 0. 577 3 0 0.1 876 0 0.2666 0 0.1026 0 0.0838 0 .70 71 0 .79 47 0. 374 5 0.4225 0.3239 0.4062 0.1 679 0.31 27 the half length 0.8325 0.8662 0.52 97 0.5938 0.5288 0.5000 0.8839 0.8 974 0.6010 ... 3.1 X 0 1 2 3 4 5 6 7 8 y 1.0 1.2 1.5 1.6 1.5 1.3 1.1 0.9 0.6 SM 1 4 2 4 2 4 2 4 ] Totals F(A) 1.0 4.8 3.0 6.4 3.0 5.2 2....

Ngày tải lên: 13/08/2014, 16:22

... curve, up to a given angle, is proportional to the energy needed to heel it to that angle. It is a measure of the energy it can absorb from wind and waves without heeling too ... 1 m = 105 MNm, LCF = 2.7m aft of amidships. Solution Trim lost when touching down Distance from heel of sternframe to LCF Moment applied to ship when touching down Trim...

Ngày tải lên: 13/08/2014, 16:22

... the still water and wave moments, giving: Sagging = 79 7+ 71 8 = 1515MNm Hogging = 79 7 -71 8 = 79 MNm Had the mass of 5000 tonnes been distributed uniformly over the whole ship ... due to the structure: (1) Becoming distorted due to being strained past the yield point. This will lead to permanent set and the distortion may lead to systems being una...

Ngày tải lên: 13/08/2014, 16:22

... lines as in Figure 7. 10. Further, laboratory tests 14 of a range of 154 STRENGTH Table 7. 3 Weat her group I 11 HI IV v Beauj 0 4 6 8 10 fort m to to to to to umber 3 5 7 9 12 &a conditions; Calm ... is necessary to use steels which have good crack arrest properties. It is recommended 11 that one with a crack arrest toughness of 150 to 200MPa(m)°&ap...

Ngày tải lên: 13/08/2014, 16:22

... three displacements ranging from 1161 tonf (11. 57 MN) to 938 tonf (9.35 MN), and over a speed range of 3 to 12.5 knots. The pull in the towrope was measured by dynamometer ... 223 The total torque is obtained by integration from the hub to the tip of the blade. The thrust power of the propeller will be proportional to TV a and the shaft power...

Ngày tải lên: 13/08/2014, 16:22

... SHIP From simple mechanics it will be appreciated that to cause a ship to move in a circle requires a force to act on it, directed towards the centre of the circle. That force is ... response to help the ships avoid collision and to assist berthing and unberthing. If possible the parameters used to define manoeuvrability should be directly related...

Ngày tải lên: 13/08/2014, 16:22

... SHOCK 279 Figure 11,1 Magnification factor displacement to the static displacement is termed the magnification factor, Q. Q is given by: Curves of magnification factor can ... 10.5 to 10 .7. The arrangements are self explanatory. (b) Figure 10.5 Balanced rudders (a) Simplex; (b) Spade MANOEUVRING 275 submarine moving in three dimensions has been touch...

Ngày tải lên: 13/08/2014, 16:22