The anti-roll stabilization of ships.
Escalona, Jose Roberto.
Thaler, G. J.
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The theory of Roll stabilization of Ships is presented in the context of modern control theory. The most common systems used to reduce the roll are described, and the principal equations are formulated. A general approach for the analysis of roll stabilizers is developed and it is applied to an activated fin stabilizer system. For this approach parameter plane techniques were applied, and the system was simulated in the Digital Computer by means of the Continuous System Modeling Program CSMP-IBM/360. Finally a system is proposed which is intended to improve the performance of passive tank stabilizers introducing fluidic devices in the feedback loop in addition to a supply of air compressed to actuate on the water ballast. The system was simulated using the same program CSMP-IBM/360, and the results compared with those obtained in the simulation of a simple passive tank stabilizer, showing a significant increasing in the damping.
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