article · German
Untersuchungen über den Einfluß der Tanklage und nichtlinearer Dämpfungseffekte auf die Wirkung eines Schlingertanks
Technical report (Bericht Nr. 155) from the Institut für Schiffbau der Universität Hamburg investigating the influence of tank vertical position and nonlinear damping effects on the effectiveness of a Frahm-type passive anti-rolling tank aboard ships. The study develops dimensionless equations of motion coupling ship roll, tank water motion, and lateral (sway) motion, then uses an analog computer to simulate the nonlinear system and study parametric variations affecting roll amplitude reduction. Results show that positioning the tank above the ship's center of gravity improves anti-rolling effectiveness, and that optimal tank parameters depend substantially on ship form and heading angle.
ship rolling stabilizationanti-rolling tankanalog computer simulationnonlinear damping