Motion response simulation method and device for ship deck and implementation device

Abstract

The invention provides a motion response simulation method and device for a ship deck and an implementation device. The method comprises the steps that according to motion response transfer functionsof six degrees of freedom at the gravity center of a current ship, intermediate coupling motion response transfer functions are determined; the motion response transfer functions are obtained according to parameters of the current ship; according to preset forecast sea conditions, the motion response transfer functions and the intermediate coupling motion response transfer functions, calculation coefficients of the forecast sea conditions are determined; and according to the calculation coefficients, motion responses at preset positions of the ship deck are determined. Through the motion response simulation method and device and the implementation device, the calculation efficiency of the motion responses of the ship deck is improved, calculation cost is low, a calculation result can comprehensively reflect the motion of the whole deck, and the calculation result contains rich information.

Description

technical field [0001] The invention relates to the technical field of motion response simulation, in particular to a motion response simulation method, device and implementation device for a deck surface of a ship. Background technique [0002] When a ship is sailing or operating at sea, affected by wave disturbance, it will produce swaying motion with 6 degrees of freedom. This swaying movement will have a negative impact on the life and production activities on board. The violent movement may cause seasickness of the crew and passengers, greatly reduce the work efficiency and comfort, and even cause damage to the equipment on the ship. [0003] Therefore, in the design and operation stages of the ship, it is necessary to understand and master the motion response of different positions on the deck surface under wave disturbance, so as to arrange reasonable cabin arrangements within the limited space of the ship and arrange living and production activities reasonably. For ...

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Problems solved by technology

[0004] At present, most of the methods used to calculate the motion response of the ship deck surface are to calculate the motion response transfer functions of several positions of interest in three directions point by point, and then predict the motion response of the position of interest under different wave conditions. Complicated algebraic and integral calculations are required for calculation, which is inefficient; only a motion response list containing a limited number of position points can be obtained, and the amount of information is small

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