The traditional sliding bearing design has a long design cycle, complicated analysis and calculation results, inaccurate calculation results, and the inability to achieve optimal parameter design. The calculation and parameter optimization are completed by the computer, and the drawn drawings are output, so that the parameters can be designed efficiently and quickly. The best bearing products.
Specifically, the following four objectives should be achieved: (1) After the user inputs the parameters, the system automatically performs the relevant calculations; (2) the system automatically selects the tolerance and other related values ​​according to the calculation results and the national standard; (3) automatically draws the pattern , generating part drawings and assembly drawings; (4) being able to manage dimensional parameters and patterns.
The specific work to be completed when developing the sliding bearing CAD system includes: (1) collecting and arranging the sliding bearing design data, and correcting and optimizing the design formula; (2) collecting and sorting the design knowledge of relevant engineers and establishing a knowledge base of design methods; () digitize the relevant design parameter map and parameters in the table and enter it into the database; (4) process the design formula and design parameters, complete the design of the calculation knowledge base; (5) develop basic data input program to realize human-computer interaction, Call the relevant calculation program to provide sufficient information; (6) design the parameter calculation program, establish the optimal design parameters, and use the data to test and correct; (7) design the graphics processing program.
According to the basic functions to be realized by the bearing CAD, the whole system is divided into four parts: (1) user management subsystem; (2) knowledge base management subsystem; (3) parameter calculation subsystem; (4) drawing subsystem. Each subsystem also includes several modules that are relatively independent in function. The functional modules of the system are shown in Figure 1.
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