An accurate measurement method for floating dock deflection based on mathematical modeling

Abstract

The invention discloses a method for accurately measuring the deflection of a floating dock based on mathematical modeling. The bottoms of the tubes are connected with each other by connecting tubes, and water or other liquids are injected into the measuring tubes, and a liquid level sensor is installed at the same horizontal position at the bottom of each measuring tube to measure the height of the liquid column in each measuring tube; it will include the beginning and the end The data of all measuring points including the measuring point are included in the processing range, and the undeformed liquid level height of each measuring point is calculated through the method of combining the least square method and the Lagrangian interpolation method; through the limited deflection of each measuring point value, and fit the deflection function model of each continuous point in the fore and aft direction of the dock. The invention fits the approximate deflection mathematical function model to the limited measurement data, and then can predict the deflection situation at any point in the longitudinal direction of the dock.

Description

technical field [0001] The invention relates to a method for measuring the deflection of a floating dock, in particular to a method for accurately measuring the deflection of a floating dock based on mathematical modeling Background technique [0002] Floating dock is a ship repairing platform that controls its floating and sinking by ballasting and pumping the water in the ballast water tank at the bottom. It is an important facility tool in the shipbuilding industry. When the ship enters and exits the dock, the floating dock needs to sink and float. During the process, the dock body will produce a certain deformation, which is called deflection. Real-time monitoring of the deflection of floating docks is very important to the safe operation of floating docks. [0003] At present, several commonly used deflection measurement data processing methods for floating docks, on the one hand, the utilization rate of the data is not enough, and the deflection data at the beginning ...

AI Technical Summary

Problems solved by technology

[0003] At present, several commonly used deflection measurement data processing methods for floating docks, on the one hand, the utilization rate of the data is not enough, and the deflection data at the beginning and the end will be ideally processed, which is characterized as no deformation; on the other hand, it can only measure the measurement points It is impossible to know the deflection value of the place where no measuring point is set, and thus cannot accurately control the water inlet and outlet of each water tank, resulting in uneven stress on the dock, which is likely to lead to safety accidents

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