Model ice pushing device

A technology of pushing device and model, which is applied in the field of ship testing, can solve the problems of harsh navigation environment of ships in ice areas, fracture of ship shafting, etc., and achieve the effects of reducing influence, broadening research scope, and accurate test measurement results.

Active Publication Date: 2017-07-18
HARBIN ENG UNIV
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Problems solved by technology

[0002] Due to the harsh navigation environment of ships in ice areas, not only strict requirements are put forward for the strength of the hull structure, but also for the propulsion system of the ship. Especially when the ship is sailing through ice, the navigation situation is more complicated. It will cause the crushed ice to sink at the bow of the ship, making it gradually approach the propeller along the hull, causing the propeller to be impacted or collided, which will directly lead to the fracture of the ship's shafting

Method used

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] combine Figure 1 to Figure 4 , the new model ice pushing device of the present invention is composed of model ice fixing device 11, distance adjustable connector 12, linear module 18 and control system 8, the model ice fixing device is used to fix model ice of different sizes, is a three-sided Bending a groove-shaped member with an opening on one side, that is, the model ice fixing device 11 is composed of a flat plate and two U-shaped bars, the two U-shaped bars can be connected to the plate by screws, and through holes with different spacings are punched on the plate for easy application Because different tests require fixing model ice 3 of different sizes (length, width and thickness) and different shapes (spherical, square and elliptical, etc.), meanwhile, the flat plate of the model ice fixing device 11 is connected with ...

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Abstract

The invention provides a model ice pushing device. A side bridge of a trailer is provided with two die fixing holder, a lower end of a first die fixing holder is provided with an open water test case, a propeller model is arranged on the open water test case, a lower end of a second die fixing holder is provided with a linear module group, a servo motor is mounted on an end part of the linear module group, an output shaft of the servo motor is connected with a leading screw of the linear module group, a connecting plate is fixedly connected on a sliding block of the linear module group, a lower end of the connecting plate is at least provided with a pair of distance-adjustable connectors, lower ends of each pair of distance-adjustable connectors are provided with model ice fixing devices, model ice is placed in the model ice fixing devices, and the side bridge of the trailer is also provided with a control system. The model ice pushing device is suitable for testing and research on model ice of different sizes and different moving states and a ship propeller, and mutual effects between the propeller and ice during ship navigation in an ice zone can be simulated in real way; the model ice pushing device is advantaged by high stability, convenience of operation, high control precision and the like; test accuracy is effectively improved.

Description

technical field [0001] The invention relates to a model ice pushing device, which belongs to the technical field of ship testing. Background technique [0002] Due to the harsh navigation environment of ships in ice areas, not only strict requirements are put forward for the strength of the hull structure, but also for the propulsion system of the ship. Especially when the ship is sailing through ice, the navigation situation is more complicated. It will cause the crushed ice to sink at the bow of the ship, making it gradually approach the propeller along the hull, causing the propeller to be impacted or collided, which will directly lead to the fracture of the ship's shafting. During voyages in ice-covered waters, propellers can stall for a variety of reasons: ice slamming, ship maneuvering (turning or stopping) or significant ice loads acting directly on the propeller. If the vessel has a forward or astern velocity that is not caused by the rotation of the propeller, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 郭春雨徐佩骆婉珍吴铁成田太平宋妙妍孙守超
Owner HARBIN ENG UNIV
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