Author: William S. Vorus
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 186
Book Description
A method is developed for predicting propeller-generated hull surface forces which cause a ship to vibrate. The method applies specifically for vertical, athwartship, axial, or torsional steady-state vibration of the hull girder. The exciting forces are made available as generalized forces effective in exciting the normal modes of the hull free vibration. The free vibration characteristics are assumed to be known in advance. The formula by which the generalized forces can be calculated is derived using potential flow theory. The basic ingredient in the derivation is a theorem which permits the problem to be solved without need for the solution of a hull-propeller interaction boundary value problem. To use the method one must have available: data pertaining to the hull and propeller design, the hull normal mode shapes, an estimate of the propeller blade loading distribution, and the fluid velocity-potential function corresponding to free vibration of the bare hull in each normal mode. Very simple, yet accurate, strip formulas for estimating fluid velocity-potential function, the bare hull velocity potential, and associated velocity components, are derived for the case of hull vertical vibration. (Author).
An Integrated Approach to the Determination of Propeller-generated Vibratory Forces Acting on a Ship Hull
Author: William S. Vorus
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 186
Book Description
A method is developed for predicting propeller-generated hull surface forces which cause a ship to vibrate. The method applies specifically for vertical, athwartship, axial, or torsional steady-state vibration of the hull girder. The exciting forces are made available as generalized forces effective in exciting the normal modes of the hull free vibration. The free vibration characteristics are assumed to be known in advance. The formula by which the generalized forces can be calculated is derived using potential flow theory. The basic ingredient in the derivation is a theorem which permits the problem to be solved without need for the solution of a hull-propeller interaction boundary value problem. To use the method one must have available: data pertaining to the hull and propeller design, the hull normal mode shapes, an estimate of the propeller blade loading distribution, and the fluid velocity-potential function corresponding to free vibration of the bare hull in each normal mode. Very simple, yet accurate, strip formulas for estimating fluid velocity-potential function, the bare hull velocity potential, and associated velocity components, are derived for the case of hull vertical vibration. (Author).
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 186
Book Description
A method is developed for predicting propeller-generated hull surface forces which cause a ship to vibrate. The method applies specifically for vertical, athwartship, axial, or torsional steady-state vibration of the hull girder. The exciting forces are made available as generalized forces effective in exciting the normal modes of the hull free vibration. The free vibration characteristics are assumed to be known in advance. The formula by which the generalized forces can be calculated is derived using potential flow theory. The basic ingredient in the derivation is a theorem which permits the problem to be solved without need for the solution of a hull-propeller interaction boundary value problem. To use the method one must have available: data pertaining to the hull and propeller design, the hull normal mode shapes, an estimate of the propeller blade loading distribution, and the fluid velocity-potential function corresponding to free vibration of the bare hull in each normal mode. Very simple, yet accurate, strip formulas for estimating fluid velocity-potential function, the bare hull velocity potential, and associated velocity components, are derived for the case of hull vertical vibration. (Author).
NBS Special Publication
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 784
Book Description
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 784
Book Description
Regents' Proceedings
Author: University of Michigan. Board of Regents
Publisher:
ISBN:
Category :
Languages : en
Pages : 1910
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 1910
Book Description
Technical Requirements for High Powered Single Screw Propulsion of Merchant Ships
Author:
Publisher:
ISBN:
Category : Propellers
Languages : en
Pages : 374
Book Description
Publisher:
ISBN:
Category : Propellers
Languages : en
Pages : 374
Book Description
Hydraulic Research in the United States and Canada
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 342
Book Description
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 342
Book Description
SSC.
Author:
Publisher:
ISBN:
Category : Naval architecture
Languages : en
Pages : 368
Book Description
Publisher:
ISBN:
Category : Naval architecture
Languages : en
Pages : 368
Book Description
Publication
Author: University of Michigan. Department of Naval Architecture and Marine Engineering
Publisher:
ISBN:
Category : Marine engineering
Languages : en
Pages : 760
Book Description
Publisher:
ISBN:
Category : Marine engineering
Languages : en
Pages : 760
Book Description
Hydraulic Research in the United States and Canada, 1972
Author: Gershon Kulin
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 344
Book Description
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 344
Book Description
Proceedings of the Board of Regents
Author: University of Michigan. Board of Regents
Publisher:
ISBN:
Category :
Languages : en
Pages : 1804
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 1804
Book Description
Applied Mechanics Reviews
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 804
Book Description
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 804
Book Description