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Author: Roy David Hampton
Publisher:
ISBN:
Category : Reduced gravity environments
Languages : en
Pages : 28
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Book Description
Author: Roy David Hampton
Publisher:
ISBN:
Category : Reduced gravity environments
Languages : en
Pages : 28
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Book Description
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781729083437
Category :
Languages : en
Pages : 26
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Book Description
In order to achieve adequate low-frequency vibration isolation for certain space experiments an active control is needed, due to inherent passive-isolator limitations. Proposed here are five possible state-space models for a one-dimensional vibration isolation system with a quadratic performance index. The five models are subsets of a general set of nonhomogeneous state space equations which includes disturbance terms. An optimal control is determined, using a differential equations approach, for this class of problems. This control is expressed in terms of constant, Linear Quadratic Regulator (LQR) feedback gains and constant feedforward (preview) gains. The gains can be easily determined numerically. They result in a robust controller and offers substantial improvements over a control that uses standard LQR feedback alone. Hampton, R. D. and Knospe, C. R. and Grodsinsky, C. M. and Allaire, P. E. and Lewis, D. W. Glenn Research Center ...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1786
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 720
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author:
Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 368
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Book Description
Author:
Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 380
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Book Description
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 466
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Book Description
Author:
Publisher:
ISBN:
Category : Automatic control
Languages : en
Pages : 832
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Book Description
Publishes theoretical and applied original papers in dynamic systems. Theoretical papers present new theoretical developments and knowledge for controls of dynamical systems together with clear engineering motivation for the new theory. Applied papers include modeling, simulation, and corroboration of theory with emphasis on demonstrated practicality.
Author: Colin Hansen
Publisher: CRC Press
ISBN: 1482234009
Category : Technology & Engineering
Languages : en
Pages : 1564
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Book Description
Integrating active control of both sound and vibration, this comprehensive two-volume set combines coverage of fundamental principles with the most recent theoretical and practical developments. The authors explain how to design and implement successful active control systems in practice and detail the pitfalls one must avoid to ensure a reliable and stable system. Extensively revised, updated, and expanded throughout, the second edition reflects the advances that have been made in algorithms, DSP hardware, and applications since the publication of the first edition.
