Stern ramp surface flatness detection method

Abstract

The present invention discloses a stern ramp surface flatness detection method. The method includes the following steps that: a, a total station coordinate system with the longitudinal section in the center plane of a stern section adopted as reference is built: a total station is adopted to measure a front center point and a back center point of a stern ramp surface in the width direction of the stern ramp surface, and the total station coordinate system with the longitudinal section in the center plane of the stern section adopted as reference is built; b, a reference point for measurement is determined, the reference point is marked at a position where the starboard of the FRO frame of the stern ramp surface is 1500 nm away from the longitudinal section in the center plane, and the total station is adopted to measure the reference point, and a measurement parameter is a distance from the stern ramp surface to a hull base plane, and the starboard of the FRO frame is a stern end starting point in the length direction of the stern ramp surface at the right side of the longitudinal section in the center plane; c, the numerical values of points on the stern ramp surface are measured; and d, measurement data are analyzed, and detection report is generated.

Description

technical field [0001] The invention relates to the technical field of ship stern slides, in particular to a method for detecting the flatness of a stern slide surface. Background technique [0002] In order to make up for the inability of large ships to perform tasks in shallow water and narrow waters due to reasons such as low speed and large hull, it is usually necessary to configure relatively small and relatively flexible equipment, especially on official ships (customs, sea surveillance, etc.) Fishery administration, maritime affairs and public security border ships, etc.) are widely used. Usually, official ships need to be equipped with 1 or 2 high-speed sea boats as working boats to deal with the above shortcomings. Large ships are equipped with small boats at sea in the following ways: towing type, crane type, davit type and stern slide type. The retractable operation of the davit and so on is slow, troublesome to operate and not safe enough, and cannot be retracte...

AI Technical Summary

Problems solved by technology

[0003] The stern slide type retraction relies on the small boat on the sea to quickly rush to the stern slide and then complete the recovery by pulling. The requirements are relatively high, including the requirements for the flatness of the stern slide surface, but the detection method of the prior art needs to set up more complicated detection tooling, the labor intensity of the detection is relatively high, and the detection accuracy is poor. Therefore, a method to overcome the above-mentioned Defective stern slide surface flatness detection method is imperative

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