Most of the product design on the market is variant design or adaptive design, which need to reuse existing product design knowledge. A key aspect of reusing existing CAD model is correctly define and understand the design intents behind of existing CAD model, and this paper introduces a CAD model annotation system based on design intent. Design intents contained all design information of entire life cycle from modeling, analysis to manufacturing are marked onto the CAD model using PMI module in UG to improve the readability of the CAD model. Second, given the problems such as management difficulties, no filter and retrieval functions, this paper proposes an annotation manager system based on UG redevelopment by filtration, retrieval, grouping and other functions to reduce clutter on the 3D annotations and be convenient for users to view needed all kinds of annotations. Finally, design information is represented both internally within the 3D model and externally on a XML file.
At present, use of computer aided engineering (CAE) software is rapidly expanding in the manufacturing industry. However, the CAE software is not an easy tool to use because of its versatility and amount of expertise required to understand and evaluate simulation results. So the operation is more complex, and the error rate is higher in the engineering analysis. A CAE Intelligent Assisted Expert System (IAES) that supports Finite Element analysis was proposed and implemented. The CAE IAS is implemented based on VS2012 development environment, which is based on case and rule based reasoning. It is used to guide and assist CAE engineers to analyze the project, so that the accuracy and efficiency of the analysis are greatly improved and the product performance is better optimized.
In accordance with the latest development direction in the filed of strengthening the heat transfer technology of strengthening the heat transfer on division of strengthening heat transfer by international authoritative Professor A.E. Bergle), including 3D(three-dimensional) heat transfer of ultra-high performance improved in the fins of the design and analysis; 3D heat transfer strengthening of the plowing process mechanism the flexibility ,high speed and high precision of gathered tools and the realization of a 3D digital design and manufacturing . It also researches on the influential law of process parameters on the formation of the fin. It is shown that the whole fin-forming process can be classified into three stages:plowing,heaving and fins forming, and that the front angle,plowing depth and the plowing speed are the main factors influencing the fin forming. Moreover,within a certain range,the height of fin increases with the front angle and the plowing depth.
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