Throwing and striking motion experiment method for high-pressure flexible bent pipeline
A technology of bending pipes and experimental methods, which is applied in the direction of strength characteristics, instruments, televisions, etc., can solve the problems of unsuitable flexible bending pipe slamming motion simulation and other problems
Active Publication Date: 2021-03-02
WUHAN UNIV
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Problems solved by technology
Due to the difference in pipeline performance and layout, the above-mentioned rigid pipeline sling test method is obviously not suitable for the sling motion simulation of flexible and curved pipelines.
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relations...
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The invention discloses a throwing and striking motion experiment method for a high-pressure flexible bent pipeline. The throwing and striking motion experiment method comprises the following experiment steps: S1, arranging an experiment pipeline; S2, arranging a data acquisition device; S3, starting a pump source; S4, releasing the experimental pipeline; S5, acquiring data; S6, processing data .According to the invention, the two high-speed cameras are used for synchronously acquiring a throwing and striking motion image of the flexible pipeline, and sampling the change condition of the displacement of a sampling point marked along the line of the flexible pipeline in advance along with time and the change condition of the flowing state of fluid in the pipeline, so that non-invasive measurement of the throwing and striking motion of the flexible pipeline is realized; and the influence of different materials, sizes, internal pressure, curvature radiuses and pretension on the throwingand striking motion of the flexible pipeline can be explored.
Description
technical field [0001] The invention belongs to the technical field of high-pressure flexible pipelines, and in particular relates to an experimental method for whipping motion of high-pressure flexible curved pipelines. Background technique [0002] High-pressure flexible pipeline is a kind of fluid transportation tool with the characteristics of corrosion resistance, good flexibility, high pressure resistance and convenient installation. It is widely used in the fields of submarine oil transportation, fire safety, mining machinery and equipment, etc. Compared with ordinary rigid pipelines, the fluid flow state in high-pressure flexible curved pipelines is more unstable. The severe fluid-solid coupling effect can easily lead to large-scale vibration of the pipeline, which will cause the breakage and slamming of the pipeline, resulting in serious economic losses and even casualties. Therefore, it is of great significance to study the slamming motion of high-pressure flexibl...
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IPC IPC(8): G01N3/00G01N3/06H04N7/18
CPCG01N3/00G01N3/068H04N7/181G01N2203/0048G01N2203/0067G01N2203/0274G01N2203/0647G01N2203/0676
Inventor 王晓川胡锦程康勇李登胡毅钱磊李月琴
Owner WUHAN UNIV