HYDRODINAMIC FYN-TYPE VIBRATION PROPULSIVE DEVICE

摘要

The present invention pertains to the field of water transport actuators, and it can be used for motion excitation of ships, underwater robotic fishes, motorboats, etc. The objective of the invention is to simplify design of the fin and to increase efficiency of propulsive device. The proposed propulsive device is equipped with drive, transmission mechanism and double fin with varying working surface area. Each fin of the propulsive device is made from thin-walled plate, which has a possibility to rotate about axle located in the lower part of fin's working plane. Additionally inner end of the axle through a prestressed torsion spring is connected with the plate, but outside end of the axle through a hinge is linked with drive of the propulsive device. And outside end of the axle is equipped with stop, which limit relative rotation of the plate in outside from the fore-and-aft axis of floating vehicle, but does not limit relative rotation of the plate in opposite direction.