Large LNG storage tank damping test model

Abstract

The invention relates to a large LNG storage tank damping test model, and belongs to the technical field of LNG storage tanks. The model comprises a vibration table, a supporting pile, a vibration isolation base, an outer tank, a storage tank and a first damper. The outer tank is supported on the vibration table through the supporting pile and the vibration isolation base. The vibration isolationbase is arranged at the bottom of the outer tank, the supporting pile is annularly distributed, the storage tank is arranged in the outer tank, the storage tank and the outer tank are connected through the first damper, the cavity between the storage tank and the outer tank is filled with powder materials, and a damping device is arranged between the supporting pile and the outer wall of the outertank. The device can be used for researching the transmission condition of the damping force between the vibration table and the outer tank so that preparation is made for the subsequent storage tankdamping arrangement form and scientific verification is provided for theoretical analysis.

Description

technical field [0001] The invention belongs to the technical field of LNG storage tanks, and in particular relates to a large-scale LNG storage tank shock absorption test model. Background technique [0002] In a densely populated and economically developed area or city, if a major destructive earthquake occurs, thousands of people will be killed and injured in a very short period of time, and countless buildings will be reduced to ruins, causing a huge disaster to mankind. As the lifeline project of contemporary society, the super-large liquefied natural gas (LNG) storage tank itself is very vulnerable to earthquakes due to the thin wall of the storage tank. The earthquake not only leads to the loss of its use function, but also causes explosion, fire and environmental pollution It will lead to catastrophic consequences. The loss caused by the damage of these storage tanks is huge, not only the economic loss itself, but also a huge threat to the surrounding lives and prope...

AI Technical Summary

Problems solved by technology

[0003] Some existing LNG storage tank test models usually obtain the response results by detecting the damping force between the outer tank and the storage tank, but few studies have been carried out on the transmission of the damping force between the outer tank and the vibration table. As a result, in the subsequent simulation design process of the storage tank, there is a problem that the dynamic response between the shaking table and the storage tank does not correspond, and the real earthquake situation cannot be well modeled.

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