Ships fluid coupling steady, dynamic properties of

Over the past decade our country has entered a fluid coupling major combat ship propulsion system applications, this is because it has the following main characteristics: ① In the "diesel engine and gear box" drive mode, the fluid coupling can be effectively reducing engine torque pulsation reduction gear on the adverse effects; ② in the "diesel + and car gear box" drive mode, charging through the fluid coupling, put oil to Hydraulic tube fittings  achieve the main, engage and disengage the driven shaft to complete the prime mover of the soft power input and withdrawal, which not only improves the peace of the engine loading, and uniform of the load distribution between the prime mover and the resulting balancing of the load control performed simplified; ③ engine load startup can gradually start through the oil-filled high inertia of fixed pitch propellers and controllable pitch propeller, which is conducive to improve the engine start condition. Fluid coupling slip curve and the working range is naturally in the study of the stability of the ship propulsion system / dynamic performance, the fluid coupling mathematical modeling and simulation are most concerned about the objects and contents.