DTIC ADA085041: Surface Effect Ship Heave Control pdf

DTIC ADA085041: Surface Effect Ship Heave Control

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Description of the Book:

A control system was designed to attenuate vertical accelerations for the XR-3 captured air bubble type surface effect ship using linear regulator techniques applied to the simplified nonlinear equations of motion. A pressure lift-only model was used to represent the craft vertical heave motion and was linearized around the steady state operating point. Model validation was obtained through analysis of the frequency spectrum. State variable feedback was used to determine a set of optimal control gains that would reduce the magnitude of the heave acceleration during operation under simulated sea input conditions. (Author

• Creator/s: Defense Technical Information Center
• Date: 3/1/1980
• Year: 1980
• Book Topics/Themes: DTIC Archive, Everett, Dwight H, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *CONTROL SYSTEMS, *SHIP MOTION, *SURFACE EFFECT SHIPS, *HEAVING, MATHEMATICAL MODELS, LINEAR SYSTEMS, STEADY STATE, CENTER OF GRAVITY, OPTIMIZATION, TRANSFER FUNCTIONS, EQUATIONS OF MOTION, ACCELERATION, AIR FLOW, THESES, REGULATORS, WEIGHTING FUNCTIONS, VERTICAL ORIENTATION, FEEDBACK, ATTENUATION, PLENUM CHAMBERS

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