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Method for establishing knowledge base and method and device for evaluating piping layout

A technology of construction method and evaluation method, applied in the field of evaluation of pipeline layout design, to achieve the effect of improving efficiency and quality

Inactive Publication Date: 2014-04-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

Although engineers can use these CAD software to make 3D models of pipeline layout, the pipeline model only expresses the position and structure of conduits in the pipeline, and engineers cannot determine from the model whether the pipeline complies with engineering constraints

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  • Method for establishing knowledge base and method and device for evaluating piping layout
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  • Method for establishing knowledge base and method and device for evaluating piping layout

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Embodiment Construction

[0068] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0069] like figure 1 As shown, a method for building a knowledge base includes:

[0070] Step 11, obtaining engineering constraints in pipeline layout engineering standards;

[0071] Specifically, in step 11, the engineering constraints can be obtained from the pipeline design manual, or can be put in through inductive analysis of the experience and knowledge of the piping experts.

[0072] Step 12, expressing engineering constraints as knowledge data of computer language by first-order predicate logic;

[0073] The above-mentioned first-order predicate logic method is the basic method of mathematical logic, applied in the field of computer reasoning, and is the most precise formal language capable of expressing human thinking and reasoning so far. It...

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Abstract

The invention provides a method for establishing a knowledge base and a method and device for evaluating a piping layout. The method for establishing the knowledge base comprises the steps of acquiring engineering constraints in a piping layout engineering standard, signifying the engineering constraints to knowledge data in computer language by using an order predicate logic method, and establishing the knowledge base applied to the piping layout based on the knowledge data. The method for evaluating the piping layout comprises the steps of acquiring the data of pipelines to be evaluated, choosing the knowledge data used for evaluation from the knowledge base, leading the chosen knowledge data and the data of the pipelines to be evaluated into an inference engine, enabling the inference engine to use the chosen knowledge data as the rule to conduct logical inference on the data of the pipelines to be evaluated, and obtaining the evaluation result of the pipelines to be evaluated. According to the method for establishing the knowledge base and the method and device for evaluating the piping layout, knowledge modeling is conducted on the engineering constraints in the piping layout engineering standard, automatic evaluation of the piping layout is achieved, designers can modify and optimize the piping layout design according to the evaluation result, and working quality is greatly improved.

Description

technical field [0001] The invention relates to the evaluation field of pipeline layout design, in particular to a construction method of a knowledge base, a pipeline layout evaluation method and a device. Background technique [0002] Pipelines are widely used in complex electromechanical products such as aviation, aerospace, automobiles, and ships. They are mainly used as transportation carriers for liquids or gases such as fuel, coolant, lubricating fluid, and hydraulic transmission, and have an important impact on product reliability. After investigation and research, it is found that nearly 50% of aircraft engine parking accidents in the air are caused by pipeline problems. [0003] The rational layout and optimization of pipelines are the prerequisites to ensure their reliability. Pipeline layout design is essentially a path optimization problem in three-dimensional space. It is not only subject to geometric constraints such as complex structure of electromechanical p...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/367G06F30/13
Inventor 刘检华赵柏萱龚晶刘少丽史建成王爱民张旭
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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