Test device for testing ship shafting performance under ice loads

Abstract

The invention relates to a test device for testing ship shafting performance under ice loads which solves the problems that a ship shafting performance test in the prior art lacks a corresponding test project for the ice loads, and a gap appears in studies on dynamic characteristics of ship shaftings sailing on ice zones and the development requirements of routes in the Arctic region can not be satisfied. The test device for testing the ship shafting performance under the ice loads comprises a water tank for simulating the ocean and containing seawater, a test rig used for simulating a stern of a ship and partially immersed in the seawater in the water tank, a rotating shaft which is arranged at one end of the test rig and stretches into the seawater in the water tank for simulating a stern shaft of the ship and an ice load generating device which is arranged around the rotating shaft, wherein a bearing connects the rotating shaft and the test rig; a vibration characteristic monitoring mechanism is arranged at the axial position of the stern shaft; and the ice load generating device generates ice cubes and pushes the ice cubes to the direction of the rotating shaft so that the rotating shaft collides with the ice cubes during the rotation to simulate the process of a collision between the ship and the ice cubes in the Arctic ice region, and then the dynamic characteristics of the ship shaftings can be obtained.

Description

technical field [0001] The invention relates to a ship shafting performance test device, in particular to a ship shafting performance test device under ice load. Background technique [0002] With the global climate change, the Arctic ice cap is melting year by year, the commercial value of the Arctic route is gradually reflected, and its strategic significance cannot be ignored, and the gradual development and utilization of resources in the Arctic region provides ice transportation suitable for navigation under low temperature and ice conditions. Ships and marine engineering ships in ice areas bring unprecedented development opportunities. [0003] Under the conditions of navigation in ice regions, the propeller will be hit by ice blocks, which will cause huge torsional excitation of the shafting system. Therefore, higher requirements are put forward for the study of the dynamic characteristics of the ship propulsion system under the impact of ice loads. At the same time,...

AI Technical Summary

Problems solved by technology

[0005] The invention solves the defect that the existing ship shafting performance test lacks corresponding ice load action test items, which makes the research on the dynamic characteristics of the ship shafting sailing in the ice area blank, and cannot meet the requirements for the development of routes in the Arctic region. It provides a The ship shafting performance test device under ice load simulates the torsional and vertical impact effects of the ship's tail shaft colliding with ice blocks when navigating in ice areas, so as to obtain the dynamic characteristics of ship shafting navigating in ice areas

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