Advances in Spacecraft Technologies Part 2 pdf

... Mini-Magnetospheric Plasma Propulsion (M2P2): High Speed Propulsion Sailing the Solar Wind,” Proc. STAIF 20 00, M. S. El- genk, ed. AIP 20 00. Advances in Spacecraft Technologies 58 Sailing ... & Casalino, 20 01; Dachwald, 20 04a, 20 04b, 20 05; Garner et al, 20 00, 20 01; Leipold & Wagner, 1998; Leipold, 1999; Leipold et al, 20 06, 20 10b; Lyngvi et al, 20...

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... mission (Mori et al, 20 10; Normile, 20 10; Sawada et al, 20 10). 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1000 10000 100000 Sail Assembly Loading (g m -2 ) Sail Area (m 2 ) MeSR IHP JAtP SbSR SPO Kuiper ... Dynamic and Control, Vol .2, No .2, Feb .20 04, pp. 38- 42 (in Chinese) Advances in Spacecraft Technologies 54 Garwin, R.L., Solar Sailing –...

Ngày tải lên: 20/06/2014, 00:20

... movement and colliding relaxation, and the value of U in Eq.(56) at time 1n + can be expressed by second-order Taylor series expansion: 22 2 22 12 2 2 2 22 2 2 11 22 11(1) 22 (, , , ) n n UV UUtt ... (1) 1 ψ = , (2) V ψ = G , 2 (3) 2V ψ = G . (20 ) Advances in Spacecraft Technologies 29 0 2 22 1 *** *** () 1 2 n Ut ULtU Ut U ξξ ξ δδ + ⎡⎤ Δ =Δ =−Δ+...

Ngày tải lên: 20/06/2014, 00:20

... as T = 1 2 m ˙ r 2 + 1 2 m f ˙ r 2 f + 1 2 I ˙ θ 2 + 1 2 I f ( ˙ θ + ˙ ψ ) 2 = 1 2 m [v 2 x +(v z + b ˙ θ) 2 ]+ 1 2 m f [(v x + a( ˙ θ + ˙ ψ )sin ψ) 2 +(v z + a( ˙ θ + ˙ ψ )cos ψ) 2 ] + 1 2 I ˙ θ 2 + 1 2 I f ( ˙ θ ... Synchronization of Spacecraft - Modeling and Coordinated Control 5 82 Advances in Spacecraft Technologies 4 Advances in Space...

Ngày tải lên: 20/06/2014, 00:20

... for Spacecraft 1 and 2 are ν 1 f ≈ 325 .5 o and ν 2 f ≈ 326 .9 o when using the GA; ν 1 f ≈ 28 6.6 o and ν 2 f ≈ 329 .1 o when using the SA. Fig. 2( c) and Fig. 2( d) show the control history obtained ... 1 2 3 30 21 0 60 24 0 90 27 0 120 300 150 330 180 0 Veh .2 SA Veh .2 Coll. Rendezvous (b) Trajectories of the second spacecraft obtained by SA and the collocation meth...

Ngày tải lên: 20/06/2014, 06:20

... K 2  − 2t τ 2  exp  − t 2 τ 2  ; y g3 = K 3  − 2 τ 2  1 − 2t 2 τ 2  exp  − t 2 τ 2  (49) where τ is the time-scaling factor, and K 1 ,2, 3 are the normalization constants: K 1 =  E 1 τ √ π /2 ; K 2 =  τE 2 √ π /2 ; ... (7) Accordingly, by substituting equations (2) , (3), (4), (6) and (7) into (5), the noise figure can be written as follows: 22 00...

Ngày tải lên: 19/06/2014, 23:20

... re-emerging troubles of actual spacecraft docking to help finding solution, checking the initial docking conditions of spacecraft docking process, testing the action and counteraction of spacecraft ... February, 20 11 Printed in India A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Advances in...

Ngày tải lên: 20/06/2014, 00:20

... no .2, 20 07, 307-317. Advances in Spacecraft Technologies 92 The centrifugal oil lubricator (Sathyan, et.al., 20 08) contains a reservoir cup and an inner sleeve made of aluminum and machined ... designs of bearing units available such as rotating shaft design and rotating housing design. In rotating shaft design, the bearing housing is rigidly mounted on Advances...

Ngày tải lên: 20/06/2014, 00:20

... Margin Mass Margin Mass Margin Mass Margin Thrust misalignment propellant mass 3 Kg 20 % 0 Kg 20 % 3 Kg 20 % 0 Kg 20 % Solar pressure, safe manoeuvres and initial despin 1 Kg 20 % 1 Kg 20 % ... bonded grains were cast in steel cartridges as shown in Fig. 9. A liner based on HTPB was used. Some minor machining was needed after casting. The propellant was easy to machine y...

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... Protection System (TPS) Tiles of Spacecraft 181 21 22 22 2 22 22 11 () 1 , n mp hhy AI y IA η ηη ⎫ =− − + ⎪ ⎪ ⎬ ⎪ == ⎪ ⎭ (25 ) 22 22 2 122 2 22 22 22 2 1 11 ()()() 2 1 () 2 n m hy hhhy AI hy I ζ ζ ⎫ =+−+− ⎪ ⎪ ⎬ ⎪ =− ⎪ ⎭ ... Advances in Spacecraft Technologies 1 62 1 1 () 11 1 () 2 11 1 2 (())()() 22 222 222 1 12 () 21 12 4 () 22 221 1 (())()()...

Ngày tải lên: 20/06/2014, 00:20