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Meshing User's Guide ANSYS phần 7

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Quét phổ thông phải có ít nhất một đường dẫn giữa mặt nguồn và phải đối mặt với mục tiêu. Những khuôn mặt phụ quét không cần phải được số ít nhưng tất cả đều phải được phân mappable và các vòng duy nhất. Yêu cầu topo của Sweeper Tổng | Specialized Meshing 8. Larger area The largest area will be picked as the source. Topological Requirements of the General Sweeper The general sweeper must have at least one path between the source face and target face. The side faces of the sweep do not need to be singular but they must all be sub-mappable and have single loops.The source face cannot be a closed analytic such as a full cylinder torus or sphere. However partial analytics are acceptable as source and target faces. Note Pro ENGINEER creates unique topological models that no other CAD system creates. In all other CAD systems non-periodic faces can have only 1 exterior topological loop. On the other hand models in Pro ENGINEER can have non-periodic faces with multiple exterior loops. This type of topology does not pose a problem for the free meshers in the Meshing application. However it does pose a problem for the general sweeper. As noted above side faces of the sweep must have single loops. They cannot have multiple exterior loops because if they do a single path from the source to the target cannot be determined. Importing the model into the DesignModeler application breaks the face with multiple exterior loops into multiple faces with single loops because the DesignModeler kernel does not support the Pro ENGINEER topology. Exporting the model from Pro ENGINEER to IGES or STEP format will also resolve this issue. Figure Example a Showing Invalid Closed Cylindrical Face as Source Face Release 13.0 - SAS IP Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS Inc. and its subsidiaries and affiliates. 198 Thin Model Sweeping Figure Example b Valid Open Cylindrical Face as Source Face Figure Example c Multiple Connected Side Faces Thin Model Sweeping Similar to the behavior of the general sweeper the thin model sweeper creates a structured hexahedral wedge mesh but for a thin model. It meshes one side of the thin solid the source and then sweeps the mesh to the other .