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Full-speed fin stabilizer based on complete Weis-Fogh structure and control method thereof

A weis-fogh and fin stabilizer technology, applied in the field of full speed fin stabilizer and its control, can solve the problems of complex structure, inconvenient rotation, etc., and achieve the effect of large lift, compatibility and large area

Active Publication Date: 2022-01-04
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design structure is complicated, and it is inconvenient to switch between zero and low speeds and medium and high speeds

Method used

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  • Full-speed fin stabilizer based on complete Weis-Fogh structure and control method thereof
  • Full-speed fin stabilizer based on complete Weis-Fogh structure and control method thereof
  • Full-speed fin stabilizer based on complete Weis-Fogh structure and control method thereof

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Experimental program
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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Step 1: According to the roll information of the ship obtained by the attitude sensor, at zero or low speed, at the beginning of a cycle, the tip chord of the fin blade is vertically upward, and the fin blade and the upper side of the hull are attached together, and the included angle is 0 degree, such as Figure 4 In (a) shown.

[0034] Step 2: The piston rod of the opening and closing oil cylinder is retracted for a section, so that the bow chord of the fin blade is rapidly opened 30 degrees relative to the upper side of the hull, and this process does not exceed 1 / 10 of the rolling period, such as Figure 4 In (b) shown.

[0035] Step 3: The hydraulic motor drives the fins to start to accelerate and flap downwards, and at the same time the piston rod of the opening and closing cylinder stretches out. When the fins move to an...

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Abstract

The invention provides a full-speed fin stabilizer based on a complete Weis-Fogh structure. The full-speed fin stabilizer is characterized by comprising a ship body, a rocker arm is installed on the ship body, the rocker arm is connected with an opening and closing oil cylinder, a cross shaft body is installed on the rocker arm, fin blades are installed at the front end of the cross shaft body, and a motor is installed at the rear section of the cross shaft body. The high lift characteristic of the Weis-Fogh structure at the zero low speed is fully utilized, the full-speed fin stabilizer based on the Weis-Fogh structure is realized; the complete Weis-Fogh structure is achieved through the ship body and fin blades, and meanwhile conversion between the zero low speed working mode and the medium-high speed working mode is quite convenient.

Description

technical field [0001] The invention relates to the technical field of fin structure and high-efficiency anti-rolling at full speed of a ship, in particular to a full-speed fin stabilizer based on a complete Weis-Fogh structure and a control method thereof. Background technique [0002] The harsh marine environment will cause the ship to shake, so ships with high stability requirements are usually equipped with anti-rolling equipment such as fin stabilizers or water tanks. However, the traditional fin stabilizer relies on the flow velocity flowing through the fin surface to generate lift, and the anti-roll ability is limited or even impossible at zero and low speeds. And the anti-rolling effect of the anti-rolling tank is often unsatisfactory. For this reason, scientific and technological workers have invented the zero speed fin stabilizer, which extends the application range of the fin stabilizer to all speeds. [0003] At medium and high speeds, the incoming flow velocit...

Claims

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Application Information

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IPC IPC(8): B63B39/06
CPCB63B39/06
Inventor 宋吉广梁利华史洪宇吉明杨生
Owner HARBIN ENG UNIV
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