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Calibration method for ship true wind measurement device

The technology of a measuring device and a calibration method, which is applied in the field of ship engineering, can solve the problem of not being able to achieve high-precision measurement of the true wind of the ship, and achieve the effects of reducing dynamic measurement errors and improving accuracy and reliability.

Active Publication Date: 2019-11-05
DALIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Simply improving the accuracy of the sensor cannot achieve high-precision measurement of the true wind of the ship

Method used

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  • Calibration method for ship true wind measurement device
  • Calibration method for ship true wind measurement device

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0021] First the true wind measurement device that the ultrasonic wind direction and wind speed measurement module 10 and the ship attitude measurement module 11 are formed is fastened on the true wind measurement device fixed module 12 of the ship's swing simulation platform; then the wind tunnel wind flow field is set to a constant value, and the ship is measured The vertical static wind direction and wind speed of the sway simulation platform is used as the reference value for true wind calibration. The rotation distance and speed parameters of the ship sway simulation platform are changed through the host computer 16, and the roll and pitch of the ship at different sway speeds and different sway angles are respectively simulated. Sway motion; organize the wind direction and speed data collected by the ...

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Abstract

The invention belongs to the field of ship engineering, and provides a calibration method for a ship true wind measurement device. The method comprises the steps that by constructing a two-axis linkage ship swing simulation platform, a wind tunnel wind flow field is adopted for controlling the ship swing simulation platform to simulate the hull space motion under wind and wave current disturbance,wind direction and wind speed data at different swing angles and different rocking speeds are measured, and a wind direction and wind speed measurement data, attitude measurement data and wind flow field actual wind direction and wind speed database is formed; a calibration model of a BP neural network is constructed by means of the database, a calibration algorithm for the ship true wind direction and true wind speed is formed, and the ship true wind measurement device is calibrated. Accordingly, the dynamic measurement error of the wind direction and wind speed under the ship space motion state is lowered, and accurate measurement of the true wind under the ship motion state is achieved.

Description

technical field [0001] The invention belongs to the field of ship engineering, and in particular relates to a calibration method for a true wind measuring device of a ship. Background technique [0002] Wind speed and direction are important parameters for ship maneuvering and control. Improving the measurement accuracy of ship wind speed and direction is of great significance for safe landing of carrier-based aircraft, emergency rescue and disaster relief, and ship departure from dock. At present, the ship-borne wind sensor generally measures the relative wind, supplemented by the ship's course and speed information to calculate the true wind. However, in addition to being related to the course and speed of the ship, the true wind of the ship is also affected by the space motion of the ship such as roll and pitch of the ship. There is a large error in the measurement. By combining the ship attitude sensor with the wind speed and direction measurement sensor to form a true...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00G01P21/02
CPCG01P21/00G01P21/025B63B49/00B63B2017/0072G01M9/04G01M9/08G01P5/24G06N3/086G01P13/02B63B79/15B63B79/40B63B79/30G01M9/02G01P13/045G06N3/02
Inventor 王大志郭晓艳慈元达蔡烽王骁梁军生
Owner DALIAN UNIV OF TECH
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