Papers by Author: Juan Han

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Authors: Yun He, Fa Ping Zhang, Zhan Chun Sun, Bo Gao, Juan Han
Abstract: Most fixture design process are based on the reuse of the previous design knowledge and experience, in this paper, we use a case-based design (CBD) method to design fixture. Based on the analysis of various CBD methods, we found that most methods used to calculate the similarity between new part and cases are too single, so we put forward a method combining the semantic attribute similarity and the shape similarity together, use a weighted algorithm to calculate the similarity. Using this method, we designed a Fixture Design System on CATIA V5 R19, and use this system to retrieve and design fixture, the retrieved results are more close to the new part and reusable, the design process is more efficient.
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Authors: Jing Zhang, Fa Ping Zhang, Xiao Feng Duan, Bo Gao, Juan Han
Abstract: In the assembly design process of aircraft products, plenty used standard parts make it boring and difficult to extract assembly features and assembly constraints between the products and standard parts.Therefore,in this paper, the practical methodology for light-weight of the tree-dimensional model for rapid assembly and the automatic determination for specification of the parts are proposed. Eventually the assembly for the standard parts can be implemented rapidly, intelligently, in batch, and automatically.
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Authors: Juan Han, Fa Ping Zhang, Bo Gao, Jing Zhang, Yun He
Abstract: It is a common phenomenon that 3D model and 2D engineering drawings are widely used together in modern manufacturing scenario. Therefore it makes a lot of extra tasks to do for both of them which lead to such results as high time consuming, labor intensive during the process. The Model-based Definition (MBD) approach is definitely an effective method to solve above problems. To facility the usage of the MBD Technology, this paper introduces two kinds of MBD model (design-MBD, process-MBD), and describes their contents as well. The paper also focuses on constructing the dMBD model and pMBD model from two aspects: information organization and annotation standard so that these models can guide production more effective.
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