Theory Design Air Cushion Craft 2009 Part 5 ppsx

... T bt Units km/h N/m 2 m /s m m m m 26 .5 2813 5. 1 15 0 .52 54 0.2066 0.086 0.086 33.1 44.2 2789 2776 5. 1 15 5. 1 65 0 .58 23 0 .59 52 0.2008 0.1986 0.0 858 0.0868 0.0866 0.0868 55 .2 2787 5. 15 0 .55 99 0.2006 0.089 0.089 174 ... width W 4 fi c lJB e PA PC Q KG Z b,s a ft 5, t m m kgf/m N/m 2 m m deg deg m 13.7 13.2 3 .5 3.77 19.93 2630 0.00 757 1.27 0. 15 60 89 0.12 1...

Ngày tải lên: 11/08/2014, 18:20

... turning perfor- mance of an ACV design. 3. Figure 6.18 [55 ] shows comparisons of the turning track of a 150 t ACV running at initial craft speed of 45 knots in zero wind velocity ... the turning track of US ACV weighing 150 1 at the initial speed of 45 knots. 25kn Wind 180 C — * No wind 0° \ 45kn Initial " ' craft speed Fxl0 3 (m) Fig. 6.17 Infl...

Ngày tải lên: 11/08/2014, 18:20

... when the craft is running in high seas and the vertical motion of the craft is very large. In such a case, we can consider air leakage gap, air cushion pressure and air flow rate ... along the longitudinal craft axis. Particularly when the craft is running in high seas, wave perturbations on the craft are severe and this causes local air le...

Ngày tải lên: 11/08/2014, 18:20

... Systems and controls 16.8 Operation and maintenance References Index 487 487 50 7 51 5 52 0 53 6 56 4 57 4 57 7 57 7 58 5 58 8 59 6 604 606 607 607 612 618 ... 474 14.7 Hovercraft vibration 476 15. Propulsion system design 15. 1 Introduction 15. 2 Air propellers 15. 3 Ducted propellers and fans 15. 4 Marine propellers 15. 5 Water jets 15. 6 Power ... fu...

Ngày tải lên: 11/08/2014, 18:20

... ////// Fig. 2.24 Heave motion of a hovercraft model on rigid surfaces. SO Air cushion theory where K 3 = vl(2 P M°- 5 = Q 0 /h 0 (2. 45) Assume the cushion pressure is a linear function ... air cushion performance of craft. The relation for Q can be written as (2pM (2-34) In general, we take the values of Q to be [ 15] : Q = 0.0 15 - 0....

Ngày tải lên: 11/08/2014, 18:20

... rock Mudflats Concrete, high speed 0.00 35 0.0 055 0.02 0.02 0.022 0.022 0.02 0.016 0.013 1.0 1 .5 6 6 6 6 6 5 4 2 2 .5 2 2 40 5 15- 30 2 -5 2 Underwater appendage drag 1 15 0 0 .5 1.0 1 .5 2.0 Fr,=v/Sgl c Fig. 3.30 ... chine All-up weight Cushion pressure m / m B c m h s m h k m B^ m fi. deg a deg ft N W N/m : p c 1.61 0. 35 0. 056 0.042 0. 05 0.0 15 65 89 15...

Ngày tải lên: 11/08/2014, 18:20

... deformation in SES air cushion 197 Fig. 5. 8 Wave amplitude due to an ACV on shallow water in/off air cushion. 5. 3 Water surface deformation in/beyond SES air cushion on calm ... towing tank. 1 2 Fr,=2 .50 0. 25 0 .50 0. 75 l.( x=xll c Fig. 5. 2 Wave profile inside a cushion at various Froude numbers. on early SES in China, for example, the air...

Ngày tải lên: 11/08/2014, 18:20

... anti-spray plate on bow sidewall. 334 Motions in waves 1.0 riii ^ 1 .5 2 .5 3 .5 4 .5 5. 5co f 1 .5 2 .5 3 .5 4 .5 5. 5w e 1.3 /.D :0 40 3.3(0 e .— i.J ^ J J.J t.J ^•^"'f ... /. ^ 1 /A jfS i i Fr=(. ^ \; No fin . » Fin I 6 Fin II- o Fin IX- .826 ; - ^ - 1 .5 2 .5 3 .5 4 .5 5 .5 1 .5 2 .5 3 .5 4 .5 5 .5 Fig. 8.36 Influence of bow hydro...

Ngày tải lên: 11/08/2014, 18:20

... 1960 China 118 1 05- 107 110 Hydrofoil Design China 118 73 80 63 717C SES China 83 80 89 719 SES China 122 85 98 80 719-11 SES China 114 73 80 65 711-IID ACV China 95 Griffon ACV UK 102 85 AP1.88 ACV UK 88 88 78 W 120 Catamaran Norway 72 79 Rules USSR 90- 95 50 55 -60 Rules Japan 95 70-80 65 Stability ... cabin Rear of passenger cabin Bridge/wheelhouse 94 96 93 92 83 .5 83...

Ngày tải lên: 11/08/2014, 18:20

... damage to the craft and personnel. fll.6 Fig. 12.12(a) 0 51 0 152 0 30 40 50 60 70 80 90 100 X y 0 16 5 4.6 0 1E 6. 3 ' 20 7. 25 30 7.6 40 24 50 6. 85 60 6.08 70 5. 1 80 3. 95 90 2. 65 100 1.2 412 ... etc.) - 0.2 - 0.2 - 0.2 - 0.2 -0.2 -0.2 LACV-30, 0.4 0 .5 0. 45 0 .55 0 .5 0.6 BH.7) 0 .5 0.6 0 .55 0. 65 0.6 0.7 0.7 0.8 0.8 0. 85 0. 85 0.9 1.0 1.0 1.0 1.0...

Ngày tải lên: 11/08/2014, 18:20