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Study on CAD/CAE Integrated System for Roller Structure Components of Textile Machine

Author: YangJiChao
Tutor: WangLiXin
School: Zhengzhou University
Course: Mechanical Design and Theory
Keywords: CAD / CAE integration Roller parts Finite Element Dimensionality reduction
CLC: TP391.72
Type: Master's thesis
Year: 2011
Downloads: 40
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Abstract

The status quo for the design and manufacture of textile machinery roller parts, the use of CAD / CAE integration technology, exploration and research of the existing design methods. According to the structural differences of the different models in the textile machinery roller parts of textile machinery roller parts CAD and CAE docking, and to improve the design and analysis of the efficiency of roller parts, so as to achieve the purpose of shortening the development cycle. CAD technology evolved from theoretical research to a wide range of engineering application stage. CAD technology toward the development, standardization, integration and the development of intelligent CAD technology application to provide a broader stage. Finite element techniques to solve the continuum problem most popular A numerical method to promote matures With the development of computer technology and the theory of the finite element method, finite element analysis software commercialization. However, the long-standing CAD and CAE is an independent development, not fusion. In order to overcome the model information silos, CAD and CAE integration is very necessary, but also the future development of the inevitable trend. The study focuses on the structural components of the textile machinery roller CAD / CAE integration. Roller parts compare a wide range of applications in the textile machinery in one of the non-standard parts. According to the function, use, and different loads, on the structural design, will vary, but the basic structure of the roller parts is the same. Experience in the design and manufacture of the textile machinery business for many years, reduction of 20 roller parts merge as cylindrical welded, welded end face, single plate welded double-width plate welded, threaded connection type, fixed mandrel style six categories within the enterprise to achieve serialization and standardization, reduce tooling in the manufacturing process, greatly reducing the processing cost of production. The need to address the core issue in the the roller parts CAD / CAE integration, CAD software to model the transition to the CAE software. Works on the most direct approach is through the intermediate step, iges and sat format conversion, such an extensive approach ignores differences CAD software and CAE software for the geometric model. CAD models reflect the details of expression to detail clearly a small chamfer tiny hole, the hole. The objects thermal, mechanical, electromagnetic and other essential characteristics of the CAE model embodies (here only to explore the the mechanics features). Transition to CAE model for very detailed CAD model, a better solution is to introduce the skeleton dimensionality reduction (skeletal dimensional reduction), go to the details of the CAD model, skeleton simplified. CAD / CAE integration platform, Visual Studio 2005 platform, using VB.NET developers. According to the the reduced merge six categories roller parts to build parametric roll parts library. Integration platform to obtain a three-dimensional model of the characteristics and parameters, and can be based on the needs of users, driven model. Skeleton simplified model based on the main parameters and characteristics of the roller parts, and generates the skeleton streamlined CAE finite element model. CAD / CAE integration platform for the structural design of the roller parts, providing the professional tools and instruments, quickly roll class structure parts for finite element analysis. The platform of the typical structure of the textile machinery roller parts for testing, to establish a correct and reasonable finite element model, easy to use, greatly improving the efficiency of the design staff.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Machine-assisted technology > Machine -aided design (CAD), aided drawing
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