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A calibration method of a ship's 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: 2020-07-14
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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  • A calibration method of a ship's true wind measurement device
  • A calibration method of a ship's true wind measurement device

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Embodiment Construction

[0020] The specific embodiments of the present invention will be described in detail below with reference to the technical solutions and the accompanying drawings.

[0021] First, fasten the true wind measurement device composed of the ultrasonic wind direction and wind speed measurement module 10 and the ship attitude measurement module 11 on the true wind measurement device fixing module 12 of the ship swaying simulation table; then set the wind flow field of the wind tunnel to a constant value, and measure the ship The vertical and static wind direction and wind speed of the rocking simulation platform are used as the reference value for true wind calibration. The rotation distance and speed parameters of the ship rocking simulation platform are changed through the host computer 16 to simulate the rolling and vertical movement of the ship under different rocking speeds and different rocking angles respectively. Swing motion; sort out the wind direction and wind speed data co...

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Abstract

The invention belongs to the field of ship engineering and provides a calibration method for a true wind measuring device of a ship. By building a two-axis linkage ship swing simulation platform, using the wind tunnel wind flow field to simulate natural wind, controlling the ship swing simulation platform to simulate the hull space movement of the ship under the disturbance of wind waves and currents, and measuring the wind direction and speed data at different swing angles and different swing speeds, Form the wind direction and speed measurement data, attitude measurement data and the actual wind direction and speed database of the wind flow field, build the calibration model of the BP neural network with this database, form the calibration algorithm of the true wind direction and true wind speed of the ship, and calibrate the true wind measurement device of the ship. The invention reduces the dynamic measurement error of wind direction and wind speed in the ship's space motion state, and realizes the accurate measurement of the true wind in the ship's motion state.

Description

technical field [0001] The invention belongs to the field of ship engineering, in particular to a calibration method of a ship true wind measurement device. Background technique [0002] Wind speed and direction are important parameters for ship maneuvering control. Improving the measurement accuracy of ship wind speed and direction is of great significance to the safe landing of ship-based aircraft, rescue and disaster relief, and ship departure and docking. At present, ship-borne wind sensors generally measure relative wind, supplemented by the ship's heading and speed information to calculate the true wind. However, the ship's true wind is not only related to the ship's course and speed, but also affected by the ship's roll, pitch and other ship's spatial motion, especially in the strong wind and wave environment, the ship's rocking will cause a large change in the ship's spatial position, resulting in the true wind. There is a large error in the measurement. By combini...

Claims

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Application Information

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Patent Type & Authority Patents(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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