Department of Aeronautics and Astronautics Massachusetts Institute of Technology

... designing and building components and would benefit more from 16.62x and 16.68x Resources a Faculty and Staff Prof Olivier de Weck Robert N Noyce Assistant Professor of Aeronautics and Astronautics and ... space and missile programs He is the director of CDIO initiatives in the Department of Aeronautics and Astronautics Bill Nadir Is a graduate research assista...

Ngày tải lên: 27/11/2015, 20:52

... intensity ratio of 3 71. 1 nm and 380.5 nm: I 3 71. 1nm  C0  C1 log 10 ( n)  C2 (log 10 n)2 I 380.5nm (15 ) The electron temperature and electron density are 1. 63 eV and 1. 1  10 11 cm -3 respectively ... state is dnv v w w 1,  ne  nw C w  ne nv  Cv  nv 1  nw  1Qv ,1w v dt wv wv w w w 1, w  nv   nw Qv , w   nv (  nw  1Qv , 1w   nw Qv , ,vw  ) 1, v...

Ngày tải lên: 19/06/2014, 12:20

... frequency is 20 0 Hz and 1500 Hz, the threshold voltage is 13 kV and 12 kV respectively  32 Aeronautics and Astronautics plasma off f =20 0 Hz f=500 Hz f=833 Hz f=1500 Hz 2. 5 U=13kV U=12kV U=10kV U=12kV ... Ψmax 0.37 72 0.3689 0.3744 0.3717 ΔΨmax/Ψmax -2. 21% -0.74% -1.47% Φns 0.4438 0.4375 0. 421 3 0.4375 ΔΦns /Φns -1. 42% -5.07% -1. 42% 0: PATC off 1: 2nd and 3rd electrod...

Ngày tải lên: 19/06/2014, 12:20

... model and the three-band radiation model seems to be appropriate for arc heater flow calculation IHF arc heater, I =30 00A experiments ARCFLO3 : 3band model + ARCFLO4 : 3band model + ARCFLO4 : 3band ... enthalpy, MJ/kg 10000 40 30 20 10 0.8 (a) Voltage experiments ARCFLO3 : 3band model + algebraic model ARCFLO4 : 3band model + k model ARCFLO4 : 3band model + k model ARCFLO4 : 3band model...

Ngày tải lên: 19/06/2014, 12:20

... 6.35 15.3 5263 6 64 293.0 1000 146 05 50 50 4. 1936x10−6 7.2055x10−5 Rose[31] Air 6.6 18 5 742 .49 43 2.2 252 555.5 12 840 60 60 1 .42 3x10−6 4. 643 2x10−5 Ram C[13] Air 152 .4 25.9 7658.6 4. 7 64 216 1500 6280 ... double-wedge  140 Aeronautics and Astronautics Aeronautics and Astronautics 16 With Park Consts Park (93) Gardiner Moss Modified Dunn and Kang Dunn and Kang...

Ngày tải lên: 19/06/2014, 12:20

... Pa 0.6 0 .56 p=3 p=4 p =5 p=6 0 .5 0 .55 0 .54 0 .53 prms, Pa prms, Pa 0.4 0.3 0.2 0 .52 0 .51 0 .5 0.49 p=3 p=4 p =5 p=6 0.48 0.1 0.47 0 50 100 150 200 250 300 350 0.46 30 35 40 θ, deg (a) 45 50 θ, deg ... cylinder with Gardiner model and Exact equilibrium constant 155 31 156 Aeronautics and Astronautics Aeronautics and Astronautics 32 50 0 400 Chemistry of Gardiner θ1=...

Ngày tải lên: 19/06/2014, 12:20

... -0.901970 -0.901970 -1. 360 9 26 -1. 367 825 -1.37 566 6 -1.375823 -0. 863 940 -0. 867 1 46 -0. 868 566 -0. 868 5 86 Table Convergence history of numerical solution of the Poisson problems H, S and A, subject to homogeneous ... 0. 561 72 -0. 164 97 present(h=1,p=22) 1000 0.8 467 5 -0.070 86 0. 469 16 -0.09117 Salwen Salwen et al (1980) 1000 0.8 467 5 -0.070 86 0. 469 24 -0.09090 Lesse...

Ngày tải lên: 19/06/2014, 12:20

... 3.500021 x2 0 .7 0 .7 0 .7 0 .70 0000 x3 17 17 17 17. 000000 x4 7. 3 7. 300000 7. 3 7. 300000 x5 7. 715320 7. 733301 7. 733330 7. 715316 x6 3.350215 3.352131 3.352156 3.349631 x7 5.286654 5.2 872 56 5.2 872 46 5.286643 ... constraints for bending and torque stresses The mathematical model for the optimization problem is as following: Min s.t  3 2  7. 477  x6  x7   0 .78...

Ngày tải lên: 19/06/2014, 12:20

... 209.4 523.1 Model 173.6 487 .1 Model 137.7 427.1 Model 209.4 523.1 Model 137.7 487 .1 Model 101 .8 150.5 281 222.3 281 2 58. 3 293 186 .5 281 2 58. 3 281 330.2 305 186 .5 281 294.2 281 366.1 305 Model 2 2 ... 133 244 86 1 1 88 Stable tracking number 1 1 1 1 1 1 1 1 2 1 1 2 Tracking duration 409 381 347 303 231 301 344 406 721 685 626 569 509 5 68 625 717 250 966 201 1003 221 1049 1390 134...

Ngày tải lên: 19/06/2014, 12:20

... Science and Simulation in Engineering (ICOSSSE' 09) , pp 113-118, ISBN 97 8 -96 0-474-131-1, ISSN 1 790 -27 69, Genova, Italy, October 17- 19, 20 09 12 Plasma-Assisted Ignition and Combustion Andrey Starikovskiy1 ... Romania, Nov 13-14, 199 7 Lungu, R (2000) Flying Vehicles Automation, Universitaria, ISBN 97 3-8043-11-5, Craiova, Romania 330 Aeronautics and Astronautics Mattingl...

Ngày tải lên: 19/06/2014, 12:20

... Westbrook and Dryer: species and reactions (Westbrook & Dryer, 1981); Minotti: species and reactions (Minotti et al., 2009); Kee: 17 species and 58 reactions (Kee et al., 1985); 372 Aeronautics and Astronautics ... chemical and 8700 vibrational exchange processes with participation of 254 particles including electronexcited and charged atoms and molecules, electrons, radic...

Ngày tải lên: 19/06/2014, 12:20

... Temp., (°C) 112 0 118 0 Quenching Temp., (°C) 114 0 for h 115 0 for h cooled for 15 in molten salt at 583 °C 116 0 for h 116 5 for h 115 0 for h 116 0 for h cooled for 15 in oil bath at 120 °C 115 0 for ... 3.4(a) and (b), and the fine secondary  phase and white particles were dispersedly distributed in the alloy as shown in Fig 3.4(a) and (b) With the HIP temperature incre...

Ngày tải lên: 19/06/2014, 12:20

... the production of a part with other specified requirements enables a procurement buyer 464 Aeronautics and Astronautics to physically negotiate and determine price and contract particulars with ... in supplier leverage and a potentially significant difference between cost and price For standard parts a small difference between unit cost and price is expected Understanding th...

Ngày tải lên: 19/06/2014, 12:20

... Process: Documents and addresses failure modes associated with the manufacturing and assembly process Procedure: Documents and addresses failure points and modes in procedures 488 Aeronautics and Astronautics ... quantitative and qualitative knowledge capture, and that this would entail more effective integration within the companies’ Design and Manufacturing functions; i...

Ngày tải lên: 19/06/2014, 12:20

... communication, new band allocations are being made in AM(R)S rather than VHF band in L and C L band (960-1164 MHz) and C band (5091-5150 MHz) allocations are discussed in the meeting L band is suggested ... intelligent radio, Fig Aeronautical SDR and CE 528 Aeronautics and Astronautics which is capable of learning the environment for various locations and altitudes, see Figure...

Ngày tải lên: 19/06/2014, 12:20