Measuring method and device for sea wave load

Abstract

The present invention relates to the measuring method and device of sea wave load. The measurement includes the following steps: suspending one rigid cylinder around one marine platform casing; setting at least two dynamometric sensors between the rigid cylinder and the casing in proper axial positions; detecting the force of sea wave on the rigid cylinder with the dynamometric sensors and transmitting the measured data to available data processor for processing. The suspended sea wave load measuring device includes rigid cylinder, dynamometric sensors and connectors. The cylinder is connected to casing to fix the axial position via steel bar, steel wire or other flexible connectors without radial position constraint, so the present invention has simple structure. The present invention adopts marketable dynamometric sensors and thus has the advantages of high reliability, easy installation, etc.

Description

technical field [0001] The invention relates to a measuring method and device for measuring ocean wave load on an ocean platform jacket. Background technique [0002] The load that ocean waves act on the jacket of an offshore platform is one of the important parameters for designing an offshore platform. In order to obtain the data of ocean wave load, people use various measurement methods to measure. At present, the measurement methods of ocean wave load are mainly divided into two types: pressure measurement and force measurement. Among them, the pressure measurement is to obtain the ocean wave load by re-integrating the pressure, and the force measurement is a direct measurement method. [0003] The force measurement methods used to measure ocean wave loads are balance force measurement methods. In this balance force measurement method, firstly, the sensitive element detects the force of ocean waves through the wave bearing element, and then transmits the detected data t...

AI Technical Summary

Problems solved by technology

In the existing balance force measurement method, since the sensitive element that feels the wave load is designed as a whole with the wave-bearing element (such as a cylinder), in order to ensure that the sensitive element can fully feel the load of ocean waves, the structure of the wave-bearing element is not connected without support. The interference of the balance, the structure of the connecting parts between the wave bearing element and the offshore platform conduit in the force measuring structure of the balance is very complicated

In addition, the entire balance has been connected with the offshore platform conduit before the actual use for debugging and calibration before measurement, so it is easy to cause damage to the sensitive components of the balance during the installation and construction of the offshore platform and affect the reliability of the measured parameters

Therefore, existing balance force measurement methods have defects such as complex structure of measuring components, high requirements for equipment installation, and low working reliability.

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