On the basis of the theory of the propeller sheet cavitation noise radiation, this paper proposes a method for inversion of ship propeller noise radiation for the non-uniform wake field behind a ship. The Markovian es...On the basis of the theory of the propeller sheet cavitation noise radiation, this paper proposes a method for inversion of ship propeller noise radiation for the non-uniform wake field behind a ship. The Markovian estimation of the wake field parameters defined in the paper is obtained, and the existence and uniqueness of the solution of the inverse problem is discussed.展开更多
On the basic theory of modal method, the coupling relation between the vibration of objects and external sound was analyzed, the theoretical model solving the vibration and noise was provided, the corresponding calcul...On the basic theory of modal method, the coupling relation between the vibration of objects and external sound was analyzed, the theoretical model solving the vibration and noise was provided, the corresponding calculation formula was given. The calculating results show out that this calculation formula is correct.展开更多
文摘On the basis of the theory of the propeller sheet cavitation noise radiation, this paper proposes a method for inversion of ship propeller noise radiation for the non-uniform wake field behind a ship. The Markovian estimation of the wake field parameters defined in the paper is obtained, and the existence and uniqueness of the solution of the inverse problem is discussed.
文摘On the basic theory of modal method, the coupling relation between the vibration of objects and external sound was analyzed, the theoretical model solving the vibration and noise was provided, the corresponding calculation formula was given. The calculating results show out that this calculation formula is correct.