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Found 7 results

  1. We can draw a number of curve and use FPolyCurve to fuse them into a "smooth" curve. An old post has discussed this question here. However, my model required a 2D "not smooth" enclosed curve made with three curves as below. It requires more than 2 intermediate points, therefore we can't use Multi Segmented Smooth Curve. And it's not a "smooth curve" therefore we abandoned the 2D interpolation curve. Therefore, I used poly curve, and results looks like this. To zoom in, we found flaws at corners. This flaws blocks me from moving forward in modeling. Get rid of the top line and the polyCurve seems work normal. My guess for the cause of the problem is the discontinuity, not a jump point but a removable discontinuous point. Please let me know if there is a way to deal with non-smooth multi-segmented curves. Any inputs are appreciated! WX
  2. We can make a multi-segmented smooth curve from Feature Definitions -> Hull Design -> Multi Segmented Smooth Curve. The issue is I can only define '2' intermediate points in a curve. I want to join many multi-segmented curves to create a single curve. How do I do it ? I am a beginner in CAESES. I could not find it in documentation. Please help.
  3. How to determine a spiral volute casing (turbocharger, pump) cross sectional decrease in value? I am trying to design a volute casing. Problem is, I don't know how much its cross sectional area decreases over time. For instance starting cross sectional area (0 degrees) is 100 cm^2, what will it be when it reaches 45, 90 degrees and so on? Is there any way to calculate it? I am sure that knowing starting and finishing cross sectional areas size (btw I know them) and just connecting them isn't a correct way.
  4. CAESES is used for the parametric design of axial fans and similar turbomachinery products, mostly in the context of simulation-driven shape optimization. In particular, CAESES is used if you need robust variable geometry models for automated studies. The comprehensive CAD modeling capabilities are geared towards simulation and give fan designers full flexibility (no black box, customization possibilities). More information about turbomachinery design software can be found here. I have also attached a few animations that were generated in CAESES. The design variables of the axial fan model were varied automatically using the integrated variation methods. Note that this is a rather simple model which is also shipped with the software. It can be used as a reference design to set up custom models. The hub and shroud modeling is demonstrated, as well as the 2D-3D mapping of the cylindrical sections and some Boolean Operations to cut the blade at the tip and merge it with the hub. The fillet size can also be controlled by a parameter. If needed, you could also automatically derive the periodic flow domain for automated meshing with grid generation tools or CFD packages.
  5. Hi together, The software CAESES is a CAD and optimization platform. For students and PhD students there are free non-commercial licenses available. In addition, there are low-price offers for start-ups and smaller companies. CAESES can be used for 2D and 3D parametric modeling, see this link for some information about its CAD capabilities. Here are some screenshots: Compared to traditional CAD systems, CAESES is a bit different. It comes with a strict object-oriented approach, i.e. the user sets up dependencies between objects and these dependencies are then kept. This makes it easy to automate the geometry generation process. Here are some features of CAESES: Full 2D and 3D modeling capabilities (NURBS-based)Roughly 20 curve types and 15 surface typesStandard transformations (translation, rotation, scaling)Writing of custom features and functionsBoolean operationsTrimmingFillets between surfacesMorphing functionality for deformation of existing geometrySurface tessellation control through e.g. trimesh objects to create and fine-tune custom STL dataCommon import and export formats e.g. IGES, STEP, PARASOLID, STLIndustry-specific modules for blade and ship designBatch mode for non-GUI (hidden) geometry generation in the background Cheers Joerg LAST UPDATE: NOV 2017
  6. Hi together, Note that CAESES is a ship hull design software, in particular, in the context of hull form optimization with CFD (computational fluid dynamics). It mainly focuses on the underwater part. The software provides comprehensive CAD functionality for generating smooth and variable hull surfaces , a complete variant management, 2D section visualization, hydrostatic calculation, 2D drawing, Lackenby transformation, STL and CAD tools for creation of flow domains, plus integration mechanisms to plug-in simulation and other preliminary tools. Energy-saving devices and propellers can be modeled, too. Furthermore, sea-keeping tools (basically, any other external software) can also be added to the design process. Please find below more screenshots that are taken from CAESES. Cheers Joerg LAST UPDATE NOV 2018: Note that there are FREE pro editions for students and PhD students, plus special packages for start-ups, small companies and freelancers. nurbs_direct_modification.mp4
  7. Parametric models are typically built from various geometric or non-geometric entities, e.g. a projection curve depends on the curve that is going to be projected and the surface it is supposed to lay on. In most programs the user creates the desired object first (in this case the projection curve) - and is subsequently asked to supply the necessary objects (surface, curve and possible projection direction) until the configuration is complete. In CAESES/FFW missing information is indicated by a * next to the required attribute and you can set the relationship via drag and drop or typing. However, if you have selected a surface and a curve already when creating the projection curve, they will be automatically associated to the attributes. Note: Whenever the selection set fits to a creator called, the attributes will be set immediately. For every object you will find a list of available creators in the type documentation.
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