Automatic generation method for Wz value of shaft part based on body
A technology for automatic generation of shaft parts, applied in special data processing applications, geometric CAD, etc., can solve the problem of difficulty in intelligently selecting the maximum height value of waviness contours, and achieve portability, scalability, and hierarchical relationships clear effect
Pending Publication Date: 2020-12-22
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is that the selection of the maximum height value of the waviness profile of the existing shaft parts is difficult to be intelligent, and a method for automatically generating the maximum height value of the waviness profile of shaft parts based on the body is proposed
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[0024] The following is a brief description of the shaft parts as an example. The shaft feature surface decomposition diagram of the shaft is attached Figure 6 shown. The automatic generation process of the maximum height value of the waviness profile of shaft parts of geometric products is shown in the attached figure 2 As shown, it specifically includes the following steps:
[0025] Step 1. Consult the relevant knowledge in the field of the maximum height value of the waviness profile of the shaft parts of the geometric product, and obtain the domain knowledge of the maximum height value of the waviness profile of the shaft parts according to the document information, expert knowledge and reusable existing ontology in this field .
[0026] According to the domain knowledge of the maximum height value of the waviness profile of the shaft part, the classes and their hierarchical relationships in the maximum height value of the waviness profile of the shaft part are constru...
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The invention belongs to the technical field of waviness design and computer-aided tolerance design (CAT), and particularly relates to an automatic generation method of a waviness profile maximum height value (Wz) of a shaft part based on a body. The method specifically comprises the following steps: (1) constructing an ontology automatically generated by Wz; (2) establishing an SWRL reasoning rule automatically generated by Wz; (3) extracting automatically generated related information of Wz; (4) constructing an automatic generation instantiation ontology model of Wz; and (5) combining the Jess inference machine with the SWRL rule, inferring the automatic generation of the Wz, and outputting a result. An ontology reasoning knowledge framework is constructed by utilizing ontology to automatically generate domain knowledge of Wz, and a Wz knowledge base is expanded according to dominant domain knowledge reasoning implicit knowledge; and in combination with a semantic network rule language rule base, Wz is reasoned for specific design and use environment conditions of geometric products. According to the invention, a computer can select a proper Wz value, and a quick and effective method is provided for automatic generation and design of Wz.
Description
technical field [0001] The invention belongs to the technical field of waviness design and computer-aided tolerance design (CAT), and in particular relates to a method for automatically generating the maximum height (Wz) value of the waviness profile of shaft parts based on a body. Background technique [0002] In the current geometric product design, the waviness design of shaft parts is often determined manually in the CAD system by designers based on their own experience or understanding of relevant standards. This design method has problems such as low efficiency, low intelligence, and error-prone, which will increase the uncertainty of product design and ultimately affect the quality of the product. [0003] Aiming at the uncertainty of product design, ontology is introduced into the automatic generation of maximum height value of waviness profile of shaft parts. First, use the second-generation web ontology language OWL2QL (Ontology Web Language 2 Query Language) to c...
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Login to View More IPC IPC(8): G06F30/17
CPCG06F30/17
Inventor 黄美发刘振辉罗民宏裴永琪刘廷伟王家浩
Owner GUILIN UNIV OF ELECTRONIC TECH