Measuring method ad device for sea wave load

A wave load, measurement method technology, applied in measurement devices, force/torque/work measuring instruments, surveying and navigation, etc., can solve the problems of low reliability, damage to sensitive components of the balance, and high requirements for equipment installation, and achieve reliable performance. , easy to replace, simple and reliable structure

Inactive Publication Date: 2003-11-26
INST OF MECHANICS - CHINESE ACAD OF SCI
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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 complicat

Method used

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  • Measuring method ad device for sea wave load
  • Measuring method ad device for sea wave load
  • Measuring method ad device for sea wave load

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] As shown in the accompanying drawings, the rigid cylinder 2 is made of metal, and four load cells 3 are respectively arranged on the inner surface of its upper and lower edges, and the load cell 3 is connected to the rigid cylinder through its mounting holes 9 and screws The 2 phases are fixed, and the circumferential positions of the load cells 3 at the upper and lower edges are the same, and are evenly distributed along the circumferential direction. On the surface of the same cross section in the rigid circle 2, four hanging points 7 uniformly distributed along its circumference are set, and one end of the steel bar 6 is fixed on the hanging point 7. Four lifting points 5 are also arranged on the outer surface of the offshore platform conduit 1 corresponding to the lifting point 7. By fixing the other circle of the steel bar 6 with the lifting point 5, the rigid r...

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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...

Claims

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Application Information

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IPC IPC(8): G01C13/00G01L5/00
Inventor 丁桦郑哲敏李岐
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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