881 resultados para Coordination and control


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"Appendix by C.F. Taylor" (the most important national laws bearing on corporations): p.191-207.

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Includes bibliographical references and index.

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Mode of access: Internet.

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Rev. ed. of the Office of Environmental Assessments' Technology characterizations (1981). Includes 13 additional ECIRs (Environmental Characterization Information Reports).

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Appears to be the same as the original 1973 edition except for the larger size and the addition of the U.S. Fire Administration's single-page "Information Update" dated September 1989 and inserted between pages [viii] and ix. The information update presents corrections to certain statistical data.

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Report year ends June 30.

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Thesis (Ph.D.)--University of Washington, 2016-06

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Thesis (Ph.D.)--University of Washington, 2016-06

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A method is proposed for determining the optimal placement and controller design for multiple distributed actuators to reduce the vibrations of flexible structures. In particular, application of piezoceramic patches to a horizontally-slewing single-link flexible manipulator modeled using the assumed modes method is investigated. The optimization method uses simulated annealing and allows placement of any number of distributed actuators of unequal length, although piezoceramics of fixed equal lengths are used in the example. It also designs an linear-quadratic-regulator controller as part of the optimization procedure. The measures of performance used in the investigation to determine optimality are the total mass of the system and the time integral of the absolute value of the hub and tip position error. This study also varies the relative weightings for each of these performance measures to observe the effects on the controller designs and piezoceramic patch positions in the optimized solutions.