MotorCADIntegrated Multiphysics Analysis Software for Electric Motor Design MotorCAD is the worldleading dedicated electric motor design software for multiphysics simulation of electrical machines across the full torquespeed range. Evaluate motor topologies and concepts across the full operating range and produce designs that are optimized for size, performance and efficiency. Motor CAD software’s four integrated modules — EMag, Therm, Lab and Mech — perform multiphysics calculations quickly and iteratively, so you can get from concept to final design in less time. With decreasing development cycles, motor designers need to make design decisions quickly, and with certainty that they will not face problems down the line. Fast calculations and streamlined data input processes leave time for MotorCAD users to explore more motor topologies and fully assess the impact of advanced loss effects in the initial stages of a design. MotorCAD software’s intuitive, templatebased setup and embedded multiphysics expertise simplifies the design process and reduces reliance on multiple teams for specific electromagnetic, thermal or mechanical experience — so motor designers can keep more control over their designs. 
MotorCAD: Integrated Multiphysics Design Tool
EMag  Electromagnetic performance predictions Uses a combination of a 2D finite element (FE) environment and analytical algorithms for fast calculation of electromagnetic performance. Optimize designs easily with our extensive range of parameterized templates and geometries. 

Therm  Thermal performance predictions and advanced cooling system design This is the industrystandard tool for thermal analysis of electric machines, with over 20 years of successful use. Calculate the temperature of motor components in steadystate and transient operating conditions and accurately model thermal behavior within seconds of calculation. 

Lab  Efficiency mapping and performance across a duty cycle Enables rapid and accurate analysis of any electric machine design over the full operating envelope. Carry out efficiency mapping and drive cycle analysis within minutes. 

Mech  Mechanical analysis Uses a 2D FEAbased solution in MotorCAD to analyze stress and displacement in rotors during operation. 
Combined 2D finite element environment and analytical algorithms for fast calculation of electromagnetic performance. Quickly perform a range of electromagnetic performance tests on prototype designs with MotorCAD EMag, including calculation of torque, power, losses, voltages, currents, inductances, flux linkages and forces. Input and optimize designs easily with the module’s extensive range of parameterized templates and geometries. Key Features

Workflow STEP 1  DEFINE YOUR MOTOR Input Geometry
Specify Winding
Input Materials Data

The MotorCAD Therm module is the industrystandard tool for thermal analysis of electric machines. MotorCAD Therm enables designers to calculate the temperature of the motor components in steadystate and transient operating conditions for accurate modeling of thermal behavior within seconds of calculation. Understanding the main heat transfer paths gives motor designers opportunities to significantly improve motor efficiency power output and make design decisions with confidence. Key Features

Workflow STEP 1  SPECIFY COOLING SYSTEM

Efficiency mapping and performance across a drive cycle. The MotorCAD Lab module has been developed to enable rapid and accurate analysis of any electric machine design over the full operating envelope. It couples to both the EMag and Therm modules and provides outputs such as efficiency maps and torque/speed characteristics. Key Features

Build the saturation and loss model using the electromagnetic FEA solver. This process builds a set of response surfaces in a few minutes, which are then saved internally.
Calculating efficiency maps and torque/speed curves
Calculating Thermal Envelopes and Drive Cycles
across the speed range within a set of winding and rotor temperature limits.

2D FEAbased solution in MotorCAD to analyze stress and displacement in rotors during operation. Analyze the mechanical stress in rotors using the MotorCAD Mechanical Model. Key Features




Detailed Modeling Analysis and Validation
MotorCAD is linked to Maxwell to perform detailed design and validation after the initial design. Maxwell can execute rigorous 2D and 3D performance calculations of the machine, including the motioninduced physics caused by linear translational and rotational motion, advanced hysteresis analysis, demagnetization of permanent magnets and other critical electromagnetic machine parameters.
Maxwell is integrated into ANSYS Electronics Desktop, where it can share the same CAD source and can be coupled to ANSYS Mechanical, ANSYS Fluent or ANSYS Icepak. Mechanical’s stress, thermal, CFD and acoustic solvers provide important multiphysics capabilities required for a detailed analysis of the electric machine. Losses calculated by Maxwell can be used as inputs to the thermal or CFD solver to calculate the temperature distribution of the machine and evaluate cooling strategies.
Electromagnetic forces and torque calculated in Maxwell are used as inputs to the stress solver to analyze deformations and further assess potential vibrations. The ability to perform an in depth multiphysics analysis with ANSYS’ powerful solvers truly sets the ANSYS MotorCAD apart from the competition.
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