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Cholerny Spammer
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 Posted: Thu 19:32, 06 Jan 2011 Post subject: asics australia Acceleration feedback control of R |
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Acceleration feedback control of Reentry
And (, ∞ ∞ 1, ∞). As the uncertainty of aerodynamic parameters, direct calculation method which two will bring in large errors, the control methods can not meet the original intention of the design, greatly reduce the reliability of the system. In order to realize the control system,[link widoczny dla zalogowanych], where the higher derivative replaced by pseudo-linearization method. By formula (22) transformation can easily be :--,. . I6x [a gsmf6 (£ a) / a 0 (a) + port 1 ∞ 1] (25) including angular acceleration with the vehicle attitude angle 'replacement, 6 (t i) the value of the previous cycle rudder command. 24 No. 4 He and pure: one section of acceleration feedback control in another application and vertical channels, as changes in the dynamic pressure range,[link widoczny dla zalogowanych], the system parameter variation range is very large, so the program with constant coefficients to achieve full control of the airspace control is very difficult; order to improve the dynamic performance and robustness, the control must be designed to time-varying parameters. First take a number of feature points, respectively, the design parameters, and then design a good control parameter to be a function of dynamic pressure synthesis. 4 for angular acceleration angular acceleration signal can be many ways to get the signal. The commonly used method is obtained by estimating, for example, using two linear displacement sensors are angular acceleration method. Within the same cross-section relative to vehicle axis of symmetry to install two linear displacement acceleration sensor, the distance between them is d,[link widoczny dla zalogowanych],, then the vehicle roll angle acceleration is: (26) can also be measured directly by the hardware aircraft angular acceleration signals obtained, such as the liquid ring angular acceleration sensor. The sensor's measuring accuracy, has been successfully applied in the aerospace models. Liquid ring angular acceleration sensor is used to measure the carrier relative to the axis of the corresponding angular acceleration,[link widoczny dla zalogowanych], angular acceleration is proportional with the given signal,[link widoczny dla zalogowanych], the signal polarity and the angular acceleration corresponding symbols. See how it works
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