The method of setting metal wire on the pipeline model to simulate the wind resistance characteristics of the suspension pipeline bridge
A pipeline model and metal wire technology, applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve the problems that the results cannot reflect the real situation, and achieve the advantages of convenient test operation, simple setting, and improved simulation accuracy Effect
Active Publication Date: 2017-09-01
BC P INC CHINA NAT PETROLEUM CORP +2
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As a result, the results of the wind tunnel test cannot reflect the real situation
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with examples and accompanying drawings. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.
[0025] A method for simulating the wind resistance characteristics of a suspension pipeline bridge by setting metal wires on the pipeline model, comprising the following steps:
[0026] Step 1, establish a group of CFD analysis models of a single pipeline model, vertically arrange metal wires on the outer wall of the pipeline model, and extract the resistance coefficient C of the pipeline model according to the analysis results of the CFD analysis model D1 , the drag coefficient C D1 Obtained by CFD analysis software.
[0027] Such as figure 2 , is the resistance coefficient C D1 Variation curve with wi...
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The invention relates to a method for providing metal wires on a pipeline model to simulate a wind-resisting characteristic of a suspension cable pipeline bridge, and belongs to the technical field of wind resistance of suspension cable pipe bridges. The method includes the steps of: extracting a resistance coefficient CD1 of a pipeline model according to an analysis result of a CFD analysis model of the pipeline model and preliminarily setting a range of a metal wire interval; longitudinally providing metal wires on an outer wall of the pipeline model, performing a wind tunnel test on the pipeline model where the metal wires are arranged, and obtaining a resistance coefficient CD2 of the pipeline model; listing a changing curve of the resistance coefficient CD2 with the metal wire interval, and when a change of the resistance coefficient CD2 with the metal wire interval is minimal, finally determining the standard interval of the metal wires; and providing the metal wires according to the standard interval, and erecting the pipeline model where the metal wires are arranged on a suspension cable pipe bridge model to perform a wind tunnel test. In the method provided by the invention, the arrangement of the metal wires is relatively simple, thereby facilitating test operation, and improving the simulation precision of the wind tunnel test of the suspension cable pipe bridge.
Description
technical field [0001] The invention relates to a method for arranging metal wires on a pipeline model to simulate the wind resistance characteristics of a suspension pipeline bridge, and belongs to the technical field of wind resistance of a suspension pipeline bridge. Background technique [0002] In the construction of oil and gas pipelines, suspension pipeline bridges are often used to cross rivers and canyons. Compared with ordinary highway suspension bridges, the narrow and flexible suspension bridges are typical wind-sensitive structures. In the engineering design of suspension pipeline bridge, wind resistance design is an important part. The current wind resistance design is supported by the wind tunnel test of the suspension pipeline bridge. Due to the limitation of the size of the wind tunnel laboratory, most of the current tests are wind tunnel tests on the segmental model of the suspension pipeline bridge. A large number of research results show that there is ...
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IPC IPC(8): G01M9/00G01M9/08
CPCG01M9/00G01M9/08
Inventor 李国辉王文进左雷斌马存明马晓成詹胜文李明水杨春玲铁明亮王丽康坤坤
Owner BC P INC CHINA NAT PETROLEUM CORP