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ANSYS DesignModeler
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Creating design models is a core part of the product development process and the first step in the simulation process. These models can be geometric forms representing actual design details or they can be approximations of the designs using simplified components like beams and plates. Besides being an essential component of engineering simulation, geometry also links engineering simulation with design and manufacturing and thereby plays a critical role in Simulation Driven Product Development.

With direct interfaces to all major computer-aided design (CAD) systems, support of additional readers and translators, and an integrated geometry modeler exclusively focused on analysis, ANSYS offers the most comprehensive geometry-handling solutions for engineering simulation in an integrated environment.


Mechanical CAD geometry defeatured and converted into Icepak objects with ANSYS DesignModeler.

Mechanical CAD geometry defeatured and converted into Icepak objects with ANSYS DesignModeler.


Product Features Include:

Automation With Flexibility to Customise

Geometry modeling in the ANSYS Workbench environment is highly automated and provides the flexibility to customise according to the type of analysis or application. Feature-based, parametric ANSYS DesignModeler software can be used to create parametric geometry from scratch or to prepare an existing CAD geometry for analysis. It includes automated options for simplification, cleanup, repair and defeaturing.

Simulation often demands unique modeling capabilities that typical CAD operations do not require. Therefore, these capabilities are either lacking in CAD systems or implemented in a fashion that is not optimum for performing simulation.

ANSYS DesignModeler provides unique modeling functions for simulation that include parametric geometry creation, concept model creation, CAD geometry modification, automated cleanup and repair, and several custom tools designed for fluid flow, structural, electromagnetic and other types of analyses.

Parametric Geometry Creation

ANSYS DesignModeler supports a sketch-and-extrude approach to creating parametric geometry. It offers extrude, revolve, sweep, chamfer and other standard geometry creation features to create fully parametric models. In addition, it supports primitives and Boolean operations for creating a new geometry or adding complementary geometry to an existing model. These models can be used with any core simulation product from ANSYS or with the ANSYS DesignXplorer product for performing design optimisation.

Concept Model Creation

Concept models are used in a product development process prior to any detailed CAD geometry being created. These design approximations, along with simulation results, are extremely useful in making fast product decisions early in the design cycle, when product costs can be significantly impacted.

Storage tank and power line tower models using beam modeling tools in ANSYS DesignModeler.

Storage tank and power line tower models using beam modeling tools in ANSYS

Preparing Existing Geometry for Analysis

CAD models are usually intended to accurately represent the exact intent of the final design and often lack additional features required for simulation. ANSYS DesignModeler provides these unique simulation features such as splitting surfaces for applying loads, defining welds or creating regions around models that represent flow volumes or simulation domains for fluid flow and electromagnetic analyses.

Automatic flow volume extraction in ANSYS DesignModeler.

Automatic flow volume extraction in ANSYS DesignModeler.

A CAD model also may contain much more detail than the simulation process requires or the detail may not be in the right form. ANSYS DesignModeler enables tasks like deleting CAD features, extracting surfaces from a solid body, suppressing parts, merging multiple bodies into one and grouping bodies to form a part.

Automatic flow volume extraction in ANSYS DesignModeler.

Automatic flow volume extraction in ANSYS DesignModeler.

ANSYS DesignModeler software also provides several tools for shell/surface modeling. Face- and edge-merge operations can be used to easily simplify models by eliminating unnecessary features and boundaries leading to improved meshes and faster solutions. Sew and connect operations can be employed to ensure proper connectivity in models with gaps and overlaps.

Similarly, the ability to select and extend groups of surfaces greatly simplifies the process of closing gaps between parts after midsurface extraction. This results in easier modeling of welds, for example. In addition, several features are available for beam modeling including support of standard cross sections, user-defined offsets, user-defined cross sections and tools for orientation control.

Automated Cleanup and Repair

Cleanup and repair of problematic geometries is a major bottleneck in engineering simulation. The cleanup and repair tools in ANSYS DesignModeler automatically detect and fix typical problems, such as small edges, sliver faces, holes, seams and faces with sharp angles. This allows geometry models to be prepared for analysis at a fast pace.

As always, analysis settings remain persistent after these operations and are updated automatically in response to changes in geometry.

Aircraft model before cleanup.

Aircraft model before cleanup.

Same aircraft model after cleanup.

Same aircraft model after cleanup.



  Click to view the ANSYS DesignModeler brochure   Click to view the Design Exploration brochure    
ANSYS DesignModeler Brochure
ANSYS Design Exploration Brochure
ANSYS Capabilities
Heart and arterial flow field during heart muscle contraction Bisected view of rocket engine test stand
In this simulation, the golf ball is created as a parametric model via ANSYS DesignModeler and modeled with multi-layer, hyperelastic, Langrangian components. Mechanical CAD geometry defeatured and converted into Icepak objects with ANSYS DesignModeler .
Turbulent flow structures around landing gear Thermal stress analysis of a computer graphics card.
Streamlines shown in cross section though pump impeller, diffuser,
and housing of HPB, from Fluid Equipment Development Company (FEDCO)
case study.
Developing a reliable and high quality power transformer,
corresponding to world-wide standards.
Design Exploration
Brochure | Download
ANSYS 16.0 Capabilities Chart | Download
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Mar 16th - 17th, 2016
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