| After the analysis of the main design tasks of centrifugal fan,a frame to develop CAD system for the centrifugal fan is formed on the basis of existing Solidworks software.and several problems relating closely to software developing are studied.The principle of theory design and similar design are introduced in this article,and the study about the CAD parameter system for the centrifugal fan are made. The 3D modal shape library are supported by the Solidworks and are stored on the disk in the form of documents. The standard parameter and functional curve database of the centrifugal are supported by the Access.By use of Solidworks' parameter driving and the relevance ability between model and engineering drawing .assemble products, the parameter drawing of the centrifugal fan's structure dimension are realized. User interface for the design of centrifugal fan is built by VB,which is supported by the SQL language and the technology of COM ,and integrate those libraries.In the last the CAD system,which can supply 2D engineering drawings and automatically design centrifugal fan by parameter,are formed. |
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