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Method for evaluating virtual assembly time of engine through BP algorithm

A virtual assembly and BP algorithm technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as irregular business systems, scarce personnel, and lack of design software

Inactive Publication Date: 2014-02-19
XIAN TECHNOLOGICAL UNIV
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Problems solved by technology

[0003] At present, the development of this technology in China has been hindered. The reason for this situation is that due to the irregular business system, foreign countries have blocked domestic technical information, and there is a lack of domestic assembly-oriented design software. The application and development of software Compared with foreign countries, there is still a big gap. For the time being, there is no sufficient theory to support assembly design principles and design stability, and the relevant personnel are also very scarce. Therefore, it is urgent to use assemblability evaluation technology in theoretical development and engineering practice. need research

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  • Method for evaluating virtual assembly time of engine through BP algorithm

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Embodiment Construction

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0032] figure 1 The process of evaluating the virtual assembly time of an engine using the BP algorithm of the present invention is shown. As shown in the figure, the present invention is implemented in this way. A method for evaluating the virtual assembly time of an engine using the BP algorithm includes

[0033] S101: Use CATIA to build engine model;

[0034] S102: Combine the human-computer interaction mode and automatic reasoning mode in the virtual environment to realize the generation of assembly constraint matrix;

[0035] S103: Based on CATIA / DELMIA simulation test disassembly assembly pa...

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Abstract

The invention discloses a method for evaluating virtual assembly time of an engine through the BP algorithm. The method for evaluating the virtual assembly time of the engine through the BP algorithm comprises the following steps that a model of the engine is established through CATIA; a human-computer interaction mode and an automatic reasoning mode are combined under a virtual environment so that generation of an assembly constraint matrix can be achieved; based on a CATIA / DELMIA simulation trial detaching assembly path plan, a virtual assembly operation environment is established and a virtual assembly operation process is created; an assembly path is measured and the assembly time is calculated; an assembly time evaluation model is established and the assembly time is evaluated. The method has a profound meaning in support tools for assembly design, product automatic assembly, parallel design in the CIMS environment and parallel engineering and the method has a significant research value on research of the assembling ability evaluation technology of products.

Description

Technical field [0001] The invention belongs to the field of assemblability research, and in particular relates to a method for evaluating the virtual assembly time of an engine by using a BP algorithm. Background technique [0002] Assemblability evaluation technology research is an important part of design for assembly (DFA). The assemblability of a product refers to a measure of the difficulty of product assembly, which is related to the product structure, assembly resources and assembly method. Assemblability evaluation of products pays attention to the influence of product assembly links and other factors in the initial stage of design. The product assembly structure should be improved under the conditions of meeting various product performance, starting from the aspects that are conducive to product assembly. Evaluate the product design and improve the design plan after passing the evaluation result, so that the designed product can not only be assembled quickly and effic...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 曹岩杜江方舟解彪白瑀姚慧曹森
Owner XIAN TECHNOLOGICAL UNIV
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