Rotating equipment virtual measuring point construction method and system based on finite element analysis

A technology of rotating equipment and construction methods, applied in the direction of constraint-based CAD, design optimization/simulation, special data processing applications, etc., to achieve the effect of improving accuracy, enhancing accuracy, and providing flexibility

Active Publication Date: 2021-08-13
浙江中自庆安新能源技术有限公司
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  • Application Information

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Problems solved by technology

The patent with the publication number CN 111967189A uses the digital twin model to synchronize the fault information of the equipment locally, and then uses the Bayesian network to diagnose locally. The digital twin does not enhance the diagnosis result

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  • Rotating equipment virtual measuring point construction method and system based on finite element analysis
  • Rotating equipment virtual measuring point construction method and system based on finite element analysis
  • Rotating equipment virtual measuring point construction method and system based on finite element analysis

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Embodiment Construction

[0068] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings, but these embodiments do not limit the present invention, those of ordinary skill in the art make structural, method, or functional changes based on these embodiments All are included in the scope of protection of the present invention.

[0069] Such as figure 1 In one embodiment of the present invention shown, the present invention provides a method for constructing virtual measuring points of rotating equipment based on finite element analysis, the method comprising:

[0070] S1. Within a preset collection period and under the condition of a preset high-speed shaft speed of the rotating device, collect and obtain a time-based vibration data sequence at multiple physical collection points on the rotating device, and the vibration data sequence includes at least The input shaft radial vibration data sequence collected by the first ent...

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Abstract

The invention discloses a rotating equipment virtual measuring point construction method based on finite element analysis, and the method comprises the following steps: collecting and obtaining a time-based vibration data sequence at a plurality of entity collection points on rotating equipment, constructing a 3D computer aided design model of the rotating equipment, and constructing a finite element analysis model of the rotating equipment by utilizing finite element software; performing computer-aided simulation according to the finite element analysis model, and performing calculating to obtain a simulation result of each mass unit of the rotating equipment under the condition of the rotating speed of the high-speed shaft; calculating a dimensionless projection coefficient of any one virtual measuring point on the rotating equipment; and according to the dimensionless projection coefficient of any virtual measuring point on the rotating equipment, calculating vibration data of any point on the rotating equipment. Based on the computer aided technology, the existing entity monitoring points and the finite element analysis technology can be combined to construct any number of virtual monitoring points, so that the vibration data of any point of the rotating equipment can be obtained.

Description

technical field [0001] The invention relates to the technical field of computer-aided optimization, in particular to a method and system for constructing virtual measuring points of rotating equipment based on finite element analysis. Background technique [0002] The health status monitoring and failure prediction of rotating equipment has always received high attention. Rotating equipment is subjected to alternating loads for a long time during production and operation, resulting in failures. For mechanical equipment with complex supporting structures and greatly affected by operating conditions and environmental conditions, the vibration signal of the equipment is collected by the vibration sensor to realize the analysis and judgment of the fault signal. The vibration signal often contains prominent noise components. Due to the limited installation position of the vibration sensor, it may not be able to be installed in a position sensitive to equipment failure. When the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F111/04G06F119/14
CPCG06F30/23G06F2111/04G06F2119/14
Inventor 水沛革根尹旭晔
Owner 浙江中自庆安新能源技术有限公司
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