Research on Variable Fin Stabilizers with Double Wings at Zero Speed

The fin stabilizer is used to reduce the roll motion of ship at zero speed, which is a new application of fin stabilizer. In order to study the process of lift generation of fin stabilizer at zero speed, the model of lift generation of fin stabilizer with double variable chord wings is built based on biomimetic theory such as Weis-Fogh mechanism by the conformal representation. By the methods of simulation analysis, the lift characteristics of variable chord Wes-Fogh lift model with different motion law is researched and the results indicate that the different lift characteristics could be provided for ship according to different wave periods by dynamical changing chord length at stated fling law, the lift model proposed could be able to reflect the lift characteristic in still flow field.