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AQWA用法说明.pdf

发布时间：2022-06-08 发布人：admin 分类：说明书 资料大小：3.92M 资料格式：pdf 举报 版权申诉
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    Customer Training Material Workshop 2.1 ANSYS AQWA Hydrodynamic Diffraction Introduction to ANSYS AQWA ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-1 Release 14.0 January 2012
    Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction The AQWA Simulation Process Customer Training Material CAD DesignModeler Hydrodynamic Diffraction ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-2 Release 14.0 January 2012
    Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction Creating geometry ready for import to WB HD • HD uses imported geometry from DesignModeler. This is used to create the majority of the AQWA model – Hull definition – Morison (TUBE) elements Customer Training Material • For AQWA specific geometry this is input via the HD user interface – Point masses – DISC elements • The main requirements for WB HD can be summarized as follows: – Each vessel (or structure) is represented as a single part, as generated in DesignModeler. – The panel model must be such that the mesh is up to the waterline. – The water line defines the global vertical origin for the analysis. ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-3 Release 14.0 January 2012
    Customer Training Material Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction Vessel/Structure definition • Each vessel or structure may consist of one or more bodies, but MUST be contained within a Part • Here we have a ship and a pier. – The ship consists of two bodies, one above the water line and a second below the water line. – The pier has three bodies, defining above and below water, plus the base, which has special considerations (more on this later). ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-4 Release 14.0 January 2012
    Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction Global axis system in AQWAWB • The water line defines the AQWA global reference axis (FRA) • The geometry is divided at this point to allow meshing above and below the water line Customer Training Material ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-5 Release 14.0 January 2012
    Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction Radiation/Diffraction Analysis Stages • WB HD for the diffraction analysis consists of five stages Customer Training Material – Insert HD system and associate geometry – Add AQWA specific parameters – Add AQWA specific elements – Mesh – Analysis and post-processing ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-6 Release 14.0 January 2012
    Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction Worked Exercises • Three models are going to be considered Customer Training Material – Single ship – Two ships demonstrating hydrodynamic interaction – One ship and a pier demonstrating specific requirements of including a fixed structure in the analysis ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-7 Release 14.0 January 2012
    Workshop 2.1 – ANSYS AQWA Hydrodynamic Diffraction Insert HD System and associate geometry • Create HD System (as shown in Lecture 1) • Import CAD geometry and/or create model directly • Repair as necessary • Position the model(s) in the correct vertical and horizontal locations required for the analysis • Cut the model(s) at the water line to provide the required delineation between above and below water (no element splitting) • Combine bodies associated with a single vessel to form one part. Customer Training Material ANSYS, Inc. Proprietary © 2012 ANSYS, Inc. All rights reserved. WS2.1-8 Release 14.0 January 2012
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