Gasometer aeroelastic model wind tunnel test displacement measurement system

Abstract

The invention discloses a gasometer aeroelastic model wind tunnel test displacement measurement system, which comprises a gasometer model. A displacement detection piece is arranged in the gasometer model, and is used for detecting displacement of a cabinet body of the gasometer model during a wind tunnel test. The gasometer aeroelastic model wind tunnel test displacement measurement system has the remarkable effects that the gasometer model can accurately and truly simulate the state of the gasometer during practical production, and ensures a test result to approximate to an actual result; during test, a displacement meter is built in, and the displacement of the cabinet body in a wind field is detected from the inner side of the gasometer, so that the influence of the wind field on the displacement meter is avoided, and the test accuracy is improved.

Description

technical field [0001] The invention relates to a civil engineering wind tunnel test, in particular to a displacement measurement system for a gas holder aeroelastic model wind tunnel test. Background technique [0002] The gas tank is a steel container for storing industrial and civil gas, and there are two types of wet gas tank and dry gas tank. The wet gas holder is a simple cylindrical structure sealed with water; the dry gas holder is a piston structure sealed with thin (dry) oil or flexible film. The bell jar, tower and piston of the gas cabinet are movable structures, which bear gas pressure and ensure good sealing performance, and require high installation accuracy. The gas cabinet body is made of carbon steel and low alloy steel. The construction site connection methods include riveting, welding and high-strength bolt connection. Welding generally adopts manual welding and CO 2 Gas shielded welding. Roof trusses and roof panels are usually installed with the ai...

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Problems solved by technology

[0005] 1. Under different working conditions, the amount of displacement response data on the surface of the cabinet is extremely large. The traditional test method requires a large number of laser displacement measurement equipment, and the test cost is extremely high.

[0006] 2. The traditional measurement equipment is external, which has a great influence on the wind field. For the wind-sensitive structure of the gas tank structure, the disturbed flow field structure has a great influence on the test accuracy

[0007] 3. Due to the high overall structure of the cabinet, the rigidity of the laser displacement fixing equipment is limited, which directly leads to the wind-induced vibration of the laser displacement meter itself in the wind tunnel test stage, and the relative error with the cabinet part, which will obviously greatly affect the test results.

[0008] In view of the above reasons, the traditional measurement method cannot accurately test the displacement response of the gas cabinet structure

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