The globalization and the intensive competition of th e automotive market require shortening the product development cycle, improving the quality and reducing the cost. Optimizing the product development process, b ui...The globalization and the intensive competition of th e automotive market require shortening the product development cycle, improving the quality and reducing the cost. Optimizing the product development process, b uilding product’s consistent defining model for life cycle, and realizing the in tegration of CAD/CAM/CAE and Concurrent Engineering (CE) become the means to acc ept the challenge. A new product modeling technology, Multi Model Technology (MM T), is provided in this paper to meet the needs of the challenge for automotive powertrain product development. First, the paper introduces the concept of Multi Model Technology. MMT introduce s Object-oriented Technology (OT) into product modeling process and combine OT with feature-based modeling technology. With the help of OT, MMT builds product object model to support system level management in product development. The obj ect model of the product is a Multi Model Structure. The MMS consists of finish part model level (assembly model level), rough part model level (part model leve l), function model level and basic model level. Every models in the MMS is creat ed by feature-based technology in design process. In this case, models in the M MS of product can be shared by casting mould, sand core and sand core mould. The refore, CAD engineers, CAE engineers and CAM engineers can work concurrently and the integration of CAD/CAM/CAE can be realized. Second, MMT is applied in cylinder head development. The multi model structures of cylinder head, its casting mould, sand core and sand core mould are built, an d the process-oriented feature models of every objects in the multi model struc tures are modeled, the application of different model objects in development pro cess is analyzed. The integrated modeling technology of cylinder head, its casti ng mould, sand core and sand core mould under MMT is studied. And the concurrent engineering oriented integration method of CAD/CAE and the method to realize th e integration of CAD/CAE under MMT are also discussed. Based on above, the integ ration of CAD/CAM/CAE of cylinder head is realized in automotive powertrain prod uct. The practice results shows that the modeling technology in this paper can optimi ze the development process, realize the data sharing and concurrent engineering in the product development process.展开更多
In order to improve the radiator cap of the automobile cover forming quality and efficiency, this paper applies the UG software to carry out the design of the injection mold, and use Moldflow software to simulate and ...In order to improve the radiator cap of the automobile cover forming quality and efficiency, this paper applies the UG software to carry out the design of the injection mold, and use Moldflow software to simulate and analyze the position of gate filling, flow, cooling and other aspects of application, to determine the best inject location and optimize die structure design. The research results show that the combination of CAD and CAE technology can effectively improve the mold design quality, shorten die development cycle, and reduce the cost of development.展开更多
With the rapid development of science and technology,the application scope of computer technology and related software is expanding,while improving the work efficiency of various industries,the quality of people's...With the rapid development of science and technology,the application scope of computer technology and related software is expanding,while improving the work efficiency of various industries,the quality of people's work has also been greatly improved.In particular,as an important part of China's economic development,the construction industry has gradually applied some new technical means,and achieved remarkable application results.CAD technology drawing can not only improve the standardization of scheme design,but also effectively shorten the time,which is of great significance to the improvement of construction quality.This paper focuses on the application of computer technology(CAD)in the construction of building decoration,and hopes to provide reference and suggestions for relevant personnel.展开更多
文摘The globalization and the intensive competition of th e automotive market require shortening the product development cycle, improving the quality and reducing the cost. Optimizing the product development process, b uilding product’s consistent defining model for life cycle, and realizing the in tegration of CAD/CAM/CAE and Concurrent Engineering (CE) become the means to acc ept the challenge. A new product modeling technology, Multi Model Technology (MM T), is provided in this paper to meet the needs of the challenge for automotive powertrain product development. First, the paper introduces the concept of Multi Model Technology. MMT introduce s Object-oriented Technology (OT) into product modeling process and combine OT with feature-based modeling technology. With the help of OT, MMT builds product object model to support system level management in product development. The obj ect model of the product is a Multi Model Structure. The MMS consists of finish part model level (assembly model level), rough part model level (part model leve l), function model level and basic model level. Every models in the MMS is creat ed by feature-based technology in design process. In this case, models in the M MS of product can be shared by casting mould, sand core and sand core mould. The refore, CAD engineers, CAE engineers and CAM engineers can work concurrently and the integration of CAD/CAM/CAE can be realized. Second, MMT is applied in cylinder head development. The multi model structures of cylinder head, its casting mould, sand core and sand core mould are built, an d the process-oriented feature models of every objects in the multi model struc tures are modeled, the application of different model objects in development pro cess is analyzed. The integrated modeling technology of cylinder head, its casti ng mould, sand core and sand core mould under MMT is studied. And the concurrent engineering oriented integration method of CAD/CAE and the method to realize th e integration of CAD/CAE under MMT are also discussed. Based on above, the integ ration of CAD/CAM/CAE of cylinder head is realized in automotive powertrain prod uct. The practice results shows that the modeling technology in this paper can optimi ze the development process, realize the data sharing and concurrent engineering in the product development process.
文摘In order to improve the radiator cap of the automobile cover forming quality and efficiency, this paper applies the UG software to carry out the design of the injection mold, and use Moldflow software to simulate and analyze the position of gate filling, flow, cooling and other aspects of application, to determine the best inject location and optimize die structure design. The research results show that the combination of CAD and CAE technology can effectively improve the mold design quality, shorten die development cycle, and reduce the cost of development.
文摘With the rapid development of science and technology,the application scope of computer technology and related software is expanding,while improving the work efficiency of various industries,the quality of people's work has also been greatly improved.In particular,as an important part of China's economic development,the construction industry has gradually applied some new technical means,and achieved remarkable application results.CAD technology drawing can not only improve the standardization of scheme design,but also effectively shorten the time,which is of great significance to the improvement of construction quality.This paper focuses on the application of computer technology(CAD)in the construction of building decoration,and hopes to provide reference and suggestions for relevant personnel.
