A method and system for evaluating the state of marine engine based on digital twin

A marine engine and state assessment technology, which is applied in engine testing, electrical digital data processing, special data processing applications, etc., can solve the process of ignoring the coupling relationship of running components, not collecting data comprehensively, and not considering the interaction of each component and other problems, to achieve the effect of accurate and comprehensive coupling relationship, convenient management and operation, and ensuring accuracy and reliability

Active Publication Date: 2022-07-01
WUHAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0003] In the existing technology, the engine is often evaluated only from a certain aspect of the parameters. On the one hand, the coupling relationship between the various operating components is ignored, and the process of the mutual influence of each component is not considered. On the other hand, the data is not collected comprehensively, resulting in Unable to comprehensively assess engine condition

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  • A method and system for evaluating the state of marine engine based on digital twin
  • A method and system for evaluating the state of marine engine based on digital twin
  • A method and system for evaluating the state of marine engine based on digital twin

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Embodiment 1

[0045] The embodiment of the present invention provides a method for evaluating the state of a marine engine based on a digital twin, combining with figure 1 Come on, figure 1 The schematic flowchart of the digital twin-based marine engine state assessment method provided by the present invention includes steps S1 to S5, wherein:

[0046] In step S1, the operating parameters and environmental parameters of the marine engine are obtained;

[0047] In step S2, according to the operating parameters and the environmental parameters, the working process model, the fault diagnosis model and the structural strength finite element model are respectively determined;

[0048] In step S3, according to the parameter transfer relationship between the working process model, the fault diagnosis model, and the structural strength finite element model, a corresponding digital twin model is established;

[0049] In step S4, the operating parameters and the environmental parameters are used as...

Embodiment 2

[0098] The embodiment of the present invention provides a marine engine state assessment system based on digital twin, combining with Figure 4 Come on, Figure 4 A schematic structural diagram of a digital twin-based marine engine state evaluation system provided by the present invention, the above-mentioned digital twin-based marine engine state evaluation system 400 includes:

[0099] The information perception and transmission module 401 is used to obtain the operating parameters and environmental parameters of the marine engine;

[0100] The engine twin model establishment module 402 is used to respectively determine the working process model, the fault diagnosis model and the structural strength finite element model according to the operating parameters and the environmental parameters; The parameter transfer relationship between the two models is used to establish the corresponding digital twin model; it is also used to use the operating parameters and environmental pa...

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Abstract

The invention relates to a method and system for evaluating the state of a marine engine based on a digital twin. The method includes: acquiring operating parameters and environmental parameters of the marine engine; and determining respectively a working process model, a fault diagnosis model, and a structural strength according to the operating parameters and the environmental parameters. Finite element model; According to the parameter transfer relationship between the working process model, the fault diagnosis model and the structural strength finite element model, the corresponding digital twin model is established; the operating parameters and environmental parameters are used as the input of the digital twin model, and the corresponding evaluation parameters are output ; Data processing according to the evaluation parameters to determine and display the operating state of the marine engine. The invention utilizes the establishment of a digital twin model to realize the prediction and diagnosis of the running state of the entire engine and each working part, so as to complete the information fusion between various signals, fully consider the coupling relationship between the parts, and carry out more accurate and comprehensive diagnosis analyze.

Description

technical field [0001] The invention relates to the technical field of intelligent engine room and engine intelligent management, in particular to a method and system for evaluating the state of a marine engine based on a digital twin. Background technique [0002] With the deep integration of cutting-edge technologies such as artificial intelligence, Internet of Things, and communications with the field of ships, ships are developing towards autonomy and unmanned operation, and intelligent autonomous navigation of ships has become an important research direction in the shipbuilding industry. The autonomous navigation of ships puts forward new requirements and challenges for ship equipment, especially the ship power system. Marine engines are the core of the ship power system and the key to ensure the safe navigation of ships. It is very necessary to comprehensively monitor and evaluate the operating status of unmanned autonomous marine engines in real time, and perform cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F30/27G01M15/00G06F119/02G06F119/08G06F119/14
CPCG06F30/23G06F30/27G01M15/00G06F2119/02G06F2119/08G06F2119/14
Inventor 余永华欧顺华刘轩毓
Owner WUHAN UNIV OF TECH
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