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Motor-CAD enables design engineers to evaluate motor topologies and concepts across the full operating range and produce designs that are optimised for performance, efficiency, size and cost. The software’s four integrated modules—EMag, Therm, Lab and Mechanical—enable multi-physics calculations to be performed iteratively, so users can get from concept to final design in less time.

Motor-CAD Modules offer –

  • EMag: Offers a fast 2D finite element module for accurate electromagnetic and electrical performance predictions.
  • Therm: Combines a lumped circuit and finite element thermal calculation for optimizing the cooling system of a machine.
  • Lab: Provides efficiency mapping and duty cycle/drive cycle transient outputs within minutes.
  • Mechanical: Offers a fast 2D finite element module for accurate rotor stress analysis predictions.

Motor-CAD Therm

The thermal studies in Motor-CAD are based on thermal networks, which makes the analysis extremely fast. All thermal resistances and capacitances are automatically calculated from the geometric dimensions of the defined design. The algorithms used support forced and free convection, liquid cooling, radiation and heat conduction. Depending on the given cooling mechanisms, suitable models for the heat transfer are automatically selected. The air gap model covers laminar and turbulent convection. An extensive library of typical components (housing, cooling method) and metrologically validated characteristics (eg influence of surfaces, manufacturing processes) ensure a fast, engineer-oriented definition of the analysis.

Engine CAD EMag

With Motor-CAD EMag, the performance of a variety of machine types can be investigated and improved. These include brushless permanent magnet machines, asynchronous machines, switched reluctance machines, synchronous reluctance machines and synchronous machines. User-friendly input masks define the geometry, winding scheme, control strategy, materials and cooling parameters. Typical test scenarios are predefined and consider both the magnetic and thermal properties of a design. The analyzes usually last only a few seconds and deliver, in addition to the field distributions, result graphs such as torque over speed or cogging torque over angle of rotation.

Motor CAD lab

In order to represent various operating points of electrical machines, evaluation routines for the use of the machine are available in Motor-CAD Lab. Efficiency Maps show the efficiency over speed and torque. In combination with driving cycles or other load collectives, different application scenarios and the resulting temperature profiles can be determined, thereby assessing the suitability of the machine with regard to performance, efficiency and cooling for the intended use.

Engine CAD demonstration

TwinMesh is available for these PD Machines

TwinMesh for Reliable CFD Analysis of External Gear Pumps

 

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analysis (cfd) of external gear pumps.

TwinMesh for Reliable CFD Analysis of Internal Gear Pumps

 

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analysis (cfd) of internal gear pumps.

TwinMesh for Reliable CFD Analysis of Gerotor Pumps

 

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analysis (cfd) of gerotor pumps.

TwinMesh for Reliable CFD Analysis of Screw Compressors and Expanders

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analysis (cfd) of Screw Compressors, Expanders and Superchargers.

TwinMesh for Reliable CFD Analysis of Rotary Lobe Pumps

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal simulation (cfd) of rotary lobe pumps.

TwinMesh for Reliable CFD Analysis of Vane Pumps

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analyses (cfd) of vane pumps.

TwinMesh for Reliable CFD Analysis of Lobe Blowers and Expanders

 

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analysis (cfd) of roots-type blowers, superchargers, and expanders.

TwinMesh for Reliable CFD Analysis of Scroll Compressors and Scroll Expanders

 

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal simulation (cfd) of scroll compressors, expanders and scroll-typed superchargers

TwinMesh for Reliable CFD Analysis of Eccentric Screw Pumps

Combining TwinMesh and ANSYS CFX offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analyses (cfd) of eccentric screw pumps.


Why Twin Mesh?

Better Designs

Increase machine performance, efficiency, and durability by a better understanding of complex phenomena inside your machine.

Speed & Flexibility

Reduce your time-to-market and fasten your response time to changing demands significantly by massive use of virtual prototyping.

Reduced Costs

Reduce development and manufacturing costs by massive use of virtual product development instead of time consuming measurements on physical prototypes.

Drive Innovation

Drive real innovation by getting deeper insight into the details of your products and their interaction with connected systems.

Features

·         Easy and intuitive GUI

·         Fully automated interface generation between meshes

·         Fully automated 2D and 3D mesh generation

·         Export of ready-to-run input files for ANSYS CFX

·         No compiling of user functions required

·         Import of existing CAD-Data or point-coordinates

·         Easy geometry scaling (clearance definition, rotor size)

·         Option for automatic mesh generation for axial clearances

·         Different mesh export options (2D/3D, one or two meshes for rotors)

·         Full user control of mesh size and mesh resolution

·         Boundary layer generation and local refinements

·         Advanced mesh smoothing algorithms

·         Several tools for mesh quality check

 Easy Import

In TwinMesh the import of rotor and casing contours is realised as a 2D cross section via IGES format or CSV text files. Casing curves can also be generated in TwinMesh. All these contours can be easily scaled in order to modify e.g. clearance dimensions between rotors and casing. Rotor positions can also be adapted after the import defining axis-positions for the directions X and Y. If required, TwinMesh then automatically generates interfaces between the rotor meshes.

 

Auto Generation of Hexahedral Meshes

In the next step TwinMesh generates hexahedral meshes for all user defined rotation angles. Using special smoothing algorithms the software takes care of a sufficient gap resolution, smooth changes between small gaps and larger chambers and an homogeneous element distribution.

 

Easy Export

 

After a final check of the numerical quality the grids can be exported as 3D model or as 2D model. The export data of TwinMesh contains all required meshes for a transient flow simulation as well as the required routines for the automatic mesh import while running the simulation in ANSYS CFX. Also, a ready-to-run simulation template is exported by TwinMesh, which enables an immediate start of a flow analysis with ANSYS CFX. Using the structured grids from TwinMesh singlephase and multiphase CFD and CHT simulations can be performed in ANSYS CFX.

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