Design method of ship ice breaking resistance model test based on non-freezing model ice

Abstract

The invention relates to a design method of a ship ice breaking resistance model test based on non-freezing model ice. The method comprises the following steps that the total length L1, molded breadthB and scale ratio lambda of a selected ship model are determined; the size A1 of an experimental basin for placing broken ice in the ship ice breaking resistance model test is determined; the characteristic length of the model ice is determined; the amount proportion of the model ice of each size under the target coverage rate c of the model ice is determined; the amount of the model ice of eachsize under the target coverage rate c of the model ice is obtained according to the amount proportion of the model ice of each size under the target coverage rate c of the model ice and the total areaA2 of the model ice; the geometric shape and parameters of the model ice of each size under the target coverage rate c of the model ice are determined. The method solves the problems of poor economical efficiency and poor operability in a freezing model ice experiment of an ice water tank, and the design method for carrying out a ship ice breaking resistance model experiment in a towing water tank is provided.

Description

technical field [0001] The invention relates to a parameter design method for a ship crushing ice resistance model experiment, in which non-frozen model ice is used to simulate crushed ice without bending damage, and belongs to the field of ship engineering. Background technique [0002] The development of the Arctic region is highly valued, and the crushed ice area is the most common ice situation. However, there are few studies on the direction of ships sailing in the crushed ice area. The main reason is that there is a lack of basic measured or experimental data on the resistance of ships in the crushed ice area. It can be seen that it is indispensable to carry out the ship ice breaking resistance test. [0003] Model experiment is one of the research methods to establish the relationship between various physical factors, including ship model experiment method. The ship model experiment method can be divided into the freezing model ice experiment of the ice water tank a...

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Problems solved by technology

In the freezing model ice experiment, although the navigation state of the ship in the crushed ice can be more realistically simulated, the time period for preparing the ice rink is long, and it generally requires repeated debugging to prepare an ice rink that meets the strength requirements. The field can only be applied to a group of experiments, therefore, a large amount of manpower and material resources are required to conduct a model experiment of ship ice resistance, and the operation of crushed ice in the ice field is poor.

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