Analysis of forces and transmission mechanism design of the submarine build-up stern-rudder

Aiming at a new kind of submarine build-up stern-rudder with auxiliary rudder,a type of transmission mechanism prototype is designed,with which auxiliary rudder is drived by hydraulic force.The structure and principle of the transmission mechanism is introduced.By improving the hydrodynamic model,the hydraulic drive force is calculated and analyzed with the use of the joukowsky aerofoil circumfluence equation and kutta-joukowsky lift force equation.In the end,the relationship between the hydraulic drive force with the string and shape of the auxiliary rudder,the length of the hydraulic cavity board and the rotational angle of the primary and primary is obtained.This paper provide guidance to the design of the practical rudder mechanism and is of great significance to the rudder's engineering application.