Capture observation system for green water test of ocean platform

Abstract

The invention relates to a capture observation system for a green water test of an ocean platform in the technical field of ocean engineering, which comprises a green water probe device, a data acquisition system and a video recording device for recording the green water process. The green water probe device comprises a green water signal probe, a supporting regulating device and a signal demodulating device, wherein the green water signal probe and the supporting regulating device are fixedly connected together and are movably arranged at the position at which ocean waves occur; the output end of the green water signal probe is connected with the signal demodulating device; and the signal demodulating device is respectively connected with the data acquisition system and the video recording device so as to send a start or stop trigger signal. According to the invention, the green water condition is accurately monitored by a data monitoring loop formed by the probe for monitoring a green water signal and the signal demodulating device and the error and fault which are caused by manual monitoring are avoided. The height of the water level of green water captured by the device is regulated by a transverse support frame and a longitudinal support frame to regulate the capturing sensitivity, so that the capture observation system for the green water test of the ocean platform adapts to models with different sizes.

Description

technical field [0001] The invention relates to a measuring device in the technical field of ocean engineering, in particular to an ocean platform used in an ocean engineering model test pool to observe waves rising and wave climbing on ocean platforms such as semi-submersible platforms under extreme sea conditions. Wave test capture observation system. Background technique [0002] With the continuous increase of world energy consumption and the gradual saturation of onshore oil and gas development, people have expanded the field of oil and gas development to the ocean. Although the development of science and technology and the advancement of marine engineering have made human beings continue to make progress in the development of deep-sea marine engineering, various offshore platforms, such as semi-submersible offshore platforms, large-scale floating production, storage and unloading systems, and other offshore oil and gas production The equipment is used in extremely har...

AI Technical Summary

Problems solved by technology

However, since the occurrence of a large wave is extremely accidental and cannot even be accurately judged in advance, only two methods can be used: one is to observe the entire 3-hour experiment with a sampling frequency of several thousand Hz throughout the whole process, which will cause The amount of collected data is extremely large, which brings great difficulties to data processing

Among them, the amount of data actually describing the instantaneous state of Shanglang only accounts for 1% of it, and a large amount of useless data will be processed in data processing

The second method is to use manual observation to collect the expected wave phenomenon. This method must arrange for a special person to observe carefully for a long time, and then collect when the wave is expected. The controllability and accuracy of data collection will be greatly reduced. , and is affected by human experience, and the data collected are intermittent, which cannot directly correspond to the motion and load data collected at other frequencies and low frequencies.

This test method only gives a description of the observation equipment of the surfing method, and its acquisition method is still the same as other physical quantities such as motion and load. Experimental Technology for Frequently Capturing Wave Moments

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