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Pretty Little Ditty
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Wysłany: Czw 18:25, 06 Sty 2011 Temat postu: nike shox Hypersonic vehicle control method of non |
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Hypersonic vehicle control method of nonlinear stochastic
5x10h2-5.6526x10-3h +341.8551. . h, P1 · 225exp () where: c reference chord length of a vehicle, a moment of inertia, m a mass, s a reference wing area, a drag coefficient, a lift coefficient, [(g) due to a pitch rate moment coefficient,[link widoczny dla zalogowanych], cl Ⅵ (a) angle of attack caused by a torque coefficient, c_ Ⅵ (more) elevator deflection caused by a torque coefficient, an engine thrust coefficient, May aerodynamic derivatives, one Earth radius, a gravitational constant, g an acceleration due to gravity, p-atmospheric density, n a speed of sound, a system error, # an observation error. The mathematical simulation of hypersonic aircraft model and linear quadratic Gaussian stochastic control algorithm with 0 can be mathematically simulated. Due to space limitations,[link widoczny dla zalogowanych], here only some simulation results are given, as shown in Figure 1-6 Simulation results show that the same flight conditions, the use of non-linear Mu quadratic Gaussian stochastic control algorithms: in the whole control process, the use of control less energy,[link widoczny dla zalogowanych], can get better control effect. As a result of GatL ~ HeAmite integration method, to avoid the traditional linear resulting \Meanwhile, the computational accuracy and computational cost can also select the appropriate number of nodes to adjust. 1 I curled Gui Da Da peak in Figure 1 Method used leisure index function J curve of Figure 2 did not use the index function method based difference v JK curve O20.15 5 Lei 0, O05O5】】 520s0510l5j20s store 3 0 NSC method using the throttle curve Figure 4 NSC method did not use the throttle changes-4b 'z curve continued on page 5, section 1 l1 aerospace control 20O2 moment lead law requires only line of sight signal,[link widoczny dla zalogowanych], which signal is given by the navigation calculation, it is applied using angle tracking servo system of radar seeker. Feedback on the proposed re-entry point of optimal guidance law and comparative conclusions obtained guidance law for maneuvering reentry vehicles to choose a reference value.
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