A calculation and study on sensitivity of geometrical parameters of control surfaces for submarines

Based on the linear maneuverability equation,choose the typical characters of a submarine maneuvering in vertical plane as the evaluating system,bring out a new concept of sensitivity of the geometrical parameters of control surfaces,and evaluated the affect of maneuverability by control surfaces' parameters by using the sensitivity index.Designed a series of control surfaces on the condition of the fixed parameters of the main bodies of the submarine,estimated the hydrodynamic coefficients by using the Bohlman method,and on the foundation of these,did a mass of calculations of the sensitivity index.From the analyses of the results of calculation,do some conclusions of relations between the maneuverability and control surfaces' parameters,such as the geometrical parameters of control surfaces do little affect with the reverse velocity of a submarine,the parameters of tail control surfaces greatly affect the rise velocity of the head rudder and so on.