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STUDY OF INTELLIGENT ENGINEERING DRAWING PROCESSING SYSTEM
Guoan, Gao,Kai, Gong Mao,Wei, Zhang,Feng, Shen Yun 대한전자공학회 1992 HICEC:Harbin International Conference on Electroni Vol.1 No.1
An intelligent Mechanical Drawing Recognition System (MDRS) is described in this paper. MDRS consists of two subsystems: the General Drawing Scanning Input System (GDSIS) and the Part Drawing Understanding System (PDUS), which are independent each other but integrated together. Some new algorithems and conceptions are presented.
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Preparation of smooth self-supporting Ni /Cu multilayer
Fengju Gao,Ruiting Zheng,Guoan Cheng,Jing Yu 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.-
[Ni(5 nm)/Cu(5 nm)]50 multilayer was deposited on SiN membranes by DC magnetron sputtering. Field emission scanning-electron microscopy (FESEM), atomic-force microscopy (AFM), and X-ray diffraction (XRD) were used to analyze the surface morphology and the microstructure. The surface of the multilayer is continuous and flat, with root-mean-square roughness (RMS) of 9.9 nm. The period of the multilayer is 10.7 nm, which is very close to the designed period of 10 nm. The multilayer was composed of multi-crystal. These results show that this experiment is a promising way to obtain flat self-supporting metal multilayer. [Ni(5 nm)/Cu(5 nm)]50 multilayer was deposited on SiN membranes by DC magnetron sputtering. Field emission scanning-electron microscopy (FESEM), atomic-force microscopy (AFM), and X-ray diffraction (XRD) were used to analyze the surface morphology and the microstructure. The surface of the multilayer is continuous and flat, with root-mean-square roughness (RMS) of 9.9 nm. The period of the multilayer is 10.7 nm, which is very close to the designed period of 10 nm. The multilayer was composed of multi-crystal. These results show that this experiment is a promising way to obtain flat self-supporting metal multilayer.
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THE INTEGRATION OF CAD/CAM/CAE BASED ON MULTI MODEL TECHNOLOGY IN THE DEVELOPMENT OF CYLINDER HEAD
Xu, Xiangyang,Weiss, Ulrich,Gao, Guoan The Korean Society of Automotive Engineers 2002 International journal of automotive technology Vol.3 No.2
The integration of CAD/CAM/CAE in product development is the key to realize concurrent engineering. Generally, different systems are employed in product development departments. These different systems create a lot of trout)toes such as difficulty in communication, misunderstanding and so on. A new approach to integrate CAD/CAM/CAE in one system based on CATIA thor the end-to-end process in cylinder head development is presented. Hulti Model Technology (MMT) is used to create consistent and associated CAD models for the end-to-end process in cylinder head development. The concept and method to create and organize multi models are discussed. A typical four-layer structure of HHT for mechanical products is defined. The multi level structure of the cylinder head models based on MMT is provided. The CAD models of cylinder head created based on MMT can be used as the consistent model. All models in the downstream of cylinder head development such as structure analysis, CFD, sand core design , casting simulation and so oil are associated with the CAD models. Practice shows the approach in this paper enables the development process to be carried concurrently and can obviously shorten time to the market, reduce product cost and improve product quality.
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THE INTEGRATION OF CAD/CAM/CAE BASED ON MULTI MODEL TECHNOLOGY IN THE DEVELOPMENT OF CYLINDER HEAD
Xiangyang Xu,Ulrich Weiss,Guoan Gao 한국자동차공학회 2002 International journal of automotive technology Vol.3 No.2
The integration of CAD/CAM/CAE in product development is the key to realize concurrent engineering.<br/> Generally, different systems are employed in product development departments. These different systems create a lot of troubles such as difficulty in communication, misunderstanding and so on. A new approach to integrate CAD/CAM/CAE in one system based on CATIA for the end-to-end process in cylinder head development is presented. Multi Model Technology (MMT) is used to create consistent and associated CAD models for the end-to-end process in cylinder head development. The concept and method to create and organize multi models are discussed. A typical four-layer structure of MMT for mechanical products is defined. The multi level structure of the cylinder head models based on MMT is provided. The CAD models of cylinder head created based on MMT can be used as the consistent model. All models in the downstream of cylinder head development such as structure analysis, CFD, sand core design, casting simulation and so on are associated with the CAD models. Practice shows the approach in this paper enables the development process to be carried concurrently and can obviously shorten time to the market, reduce product cost and improve product quality.
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