Sensor array optimization method for damage positioning of pressure vessel with connecting pipe
A sensor array and pressure vessel technology, applied in the field of particle swarm optimization algorithm and ultrasonic guided wave structure health monitoring, can solve the problems of complex ultrasonic guided wave signal wave structure, damage location results, inaccuracy, etc., to ensure effective coverage and scanning. Check, ensure damage location accuracy, and avoid the effect of guided wave signal interference
Pending Publication Date: 2021-05-07
EAST CHINA UNIV OF SCI & TECH +1
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Problems solved by technology
However, according to the requirements of the actual process, the pressure equipment usually has a nozzle structure, and the connection between the nozzle and the container is the key area for crack initiation, but the wave structure of the ultrasonic guided wave signal at the discontinuity of this structure is very complicated, and it is inevitable lead to inaccurate damage localization results
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[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation methods in 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.
[0038]In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like parts.
[0039] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent application spec...
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The invention discloses a sensor array optimization method for damage positioning of a pressure vessel with a connecting pipe. The sensor array optimization method comprises the following steps: step S1, carrying out two-dimensional grid division on a barrel; step S2, initializing a sensor array on the divided two-dimensional grid; step S3, constructing a particle swarm optimization algorithm model according to the established sensor array; step S4, constructing a particle swarm optimization algorithm model fitness equation based on the takeover boundary; step S5, optimizing particle swarm optimization algorithm model parameters to obtain an optimal model; and S6, training a particle swarm optimization algorithm model according to the final parameters to obtain an optimal sensor array. According to the invention, the accuracy of the damage monitoring result of the pressure vessel with the connecting pipe based on the ultrasonic guided wave can be ensured.
Description
technical field [0001] The invention relates to the field of particle swarm optimization algorithm and ultrasonic guided wave structure health monitoring, in particular to a sensor array optimization method for damage location of a pressure vessel with a nozzle. Background technique [0002] Pressure vessels are special equipment that withstand pressure and have explosion hazards, and are widely used in petrochemical, aerospace, and underwater ships. This equipment is an indispensable core equipment in the production and transportation process, and it is also an important symbol of a country's equipment manufacturing level. Pressure vessels are usually used in processes such as heat and mass transfer, and have a large number of applications in the storage and transportation of pressurized gases or liquefied gases. The harsh working environment, alternating changes in operating pressure and temperature, and corrosive working media make pressure vessels very prone to damage. ...
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Login to View More IPC IPC(8): G06F30/23G06N3/00F17C13/02F17C13/12
CPCG06F30/23G06N3/006F17C13/02F17C13/12F17C2250/03F17C2250/0491F17C2250/0694
Inventor 轩福贞胡超杰杨斌袁奕雯张东
Owner EAST CHINA UNIV OF SCI & TECH