Ship floating state and stability monitoring device and method for container quay crane

Abstract

The invention relates to a ship floating state and stability monitoring device and method for a container quay crane. According to information, such as quay tide level and wave conditions, mooring constraints, loading and unloading operation, a ship-type structure, a hanger position, sling tightness, and a hanger inclination angle, obtained through a quay operation management system and a quay crane monitoring computer, a natural period and a steady-state inclination angle are predicted through a ship rolling non-mooring constraint extreme point measurement method, a ship static inclination angle and initial stability safety are calculated and verified, and floating state and stability alarming in the ship loading and unloading processes is conducted; the problems of a small container shipwhich is not equipped with a loader, cannot provide carrying information, and is difficult to accurately verify the initial stability are solved, thus the crew testing work intensity is reduced, andthe ship loading stability safety is ensured; the disadvantage that a rolling period test method needs to remove ship mooring and measures the complete period is overcame, free rolling generated by loading and unloading operation in a quay is effectively used, the measurement time of a hanger loaded on the ship is greatly shortened, and the efficiency requirements of quay crane loading and unloading operation are basically met; and immediate data reference is provided for timely stowage or ballast adjustment of the quay and the ship, and the ship floating state and stability monitoring deviceand method for the container quay crane can be widely applied to various container quay cranes of manual or automated quays.

Description

technical field [0001] The invention relates to a ship floating state and stability monitoring device and monitoring method for container quay cranes, especially according to the wharf tide level and wave conditions, mooring constraints, and loading and unloading operations obtained by the wharf operation management system and the quay crane monitoring computer. , ship structure, spreader position, sling tightness, spreader inclination and other information, calculate the natural period and steady-state inclination through the ship-swaying non-mooring constraint extreme point measurement method, calculate and verify the ship's static inclination and initial stability safety , realize the intelligent monitoring device and the monitoring method thereof for the floating state and stability alarm of the ship loading and unloading process. Background technique [0002] Container quay crane (that is, quayside container crane) is a kind of port machinery equipment installed on the ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: for a small container ship that is not equipped with a loading instrument and cannot provide loading information, it is difficult to accurately measure the natural period of rolling, resulting in inaccurate estimation of initial stability and unavoidable loading instability accidents; in addition , the roll cycle test method needs to release the mooring of the ship and measure the complete cycle, which cannot make use of the free roll generated by the port loading and unloading operations, and is difficult to meet the efficiency requirements of the quayside crane loading and unloading operations

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