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An LNG full-capacity storage tank stress analysis method under the wind load effect

A force analysis and wind load technology, applied in the field of force analysis of LNG full-capacity storage tanks, can solve problems such as storage tank damage, storage tank buckling deformation, and overturning, and achieve the effect of optimizing structural design

Pending Publication Date: 2021-07-23
OFFSHORE OIL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Under the action of strong wind, the storage tank will buckle and deform or even overturn (be blown flat), or cause damage due to the natural vibration of the storage tank, etc., which will cause irreparable damage. Economic loss and casualties

Method used

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  • An LNG full-capacity storage tank stress analysis method under the wind load effect
  • An LNG full-capacity storage tank stress analysis method under the wind load effect
  • An LNG full-capacity storage tank stress analysis method under the wind load effect

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0022] Examples such as Figure 1 to Figure 2 As shown, the present invention discloses a force analysis method for LNG full-capacity storage tank under the action of wind load, which is specifically carried out through the following steps:

[0023] The specific operation of S1 is: based on the ANSYS APDL language, establish a three-dimensional refined geometric model of the LNG full-capacity storage tank, please refer to figure 2 . Use APDL language to only carry out 3D geometric modeling of the concrete structure of the concrete outer tank, including dome 1, wall 2, cap 3 and pile foundation 4; for storage tank dome 1, wall 2 and cap 3, use K in APDL language Commands define ...

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Abstract

The invention discloses an LNG full-capacity storage tank stress analysis method under the wind load effect. The method comprises the following steps: S1, building an LNG full-capacity storage tank three-dimensional geometric model; s2, determining an analysis unit type and all material parameters; s3, dividing a model structure grid; s4, exporting all unit coordinates of the dome and the wall body; s5, calculating the wind load of each unit; s6, writing all unit wind loads; s7, loading a wind load and boundary conditions; s8, solving and calculating; and S9, obtaining a calculation result, and finishing the LNG full-capacity storage tank stress analysis method under the wind load effect. According to the invention, the stress result and condition of each part of the storage tank under the wind load condition can be provided, a theoretical basis is provided for the construction design scheme of the storage tank, the structural design is optimized, and the method has important significance on the safety and economy of the storage tank.

Description

technical field [0001] The invention relates to a force analysis method of an LNG full-capacity storage tank under the action of wind load based on ANSYS-APDL language. Background technique [0002] Liquefied Natural Gas (LNG) is mainly composed of methane, which is a high-quality clean energy. With the rapid development of social economy and the sharp increase in energy consumption, the number and scale of LNG storage tanks are increasing, and their role in regional economic development is becoming more and more important. [0003] At present, with stricter environmental protection requirements, the proportion of LNG in energy consumption has increased sharply, and the number of supporting large-scale full-capacity storage tanks has continued to increase. According to the statistics of relevant agencies, there are currently more than 100 LNG receiving stations and supporting projects in the world, and more than 300 LNG storage tanks have been built. [0004] Under the act...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/23G06F30/28G06F119/08G06F119/14G06F113/08
CPCG06F30/17G06F30/23G06F30/28G06F2119/08G06F2119/14G06F2113/08
Inventor 姜永胜苏娟叶忠志张喜强苏龙龙郭冠群陈程佟姝茜易吉梅郭琳张喜兰薛峰
Owner OFFSHORE OIL ENG
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