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Microgravity Vibration Isolation

Microgravity Vibration Isolation

          
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About the Book

Certain experiments contemplated for space platforms must be isolated from the accelerations of the platforms. An optimal active control is developed for microgravity vibration isolation, using constant state feedback gains (identical to those obtained from the Linear Quadratic Regulator (LQR) approach) along with constant feedforward (preview) gains. The quadratic cost function for this control algorithm effectively weights external accelerations of the platform disturbances by a factor proportional to (1/omega)(exp 4). Low frequency accelerations (less than 50 Hz) are attenuated by greater than two orders of magnitude. The control relies on the absolute position and velocity feedback of the experiment and the absolute position and velocity feedforward of the platform, and generally derives the stability robustness characteristics guaranteed by the LQR approach to optimality. The method as derived is extendable to the case in which only the relative positions and velocities and the absolute accelerations of the experiment and space platform are available. Hampton, R. D. and Grodsinsky, C. M. and Allaire, P. E. and Lewis, D. W. and Knospe, C. R. Glenn Research Center RTOP 694-03-0C...


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Product Details
  • ISBN-13: 9781729083284
  • Publisher: Independently Published
  • Publisher Imprint: Independently Published
  • Height: 280 mm
  • No of Pages: 26
  • Spine Width: 1 mm
  • Width: 216 mm
  • ISBN-10: 1729083285
  • Publisher Date: 22 Oct 2018
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 86 gr


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