Find out what’s new in our latest major software update MASTA 12
MASTA 12
Packed with new and updated functionality, MASTA 12 aims to revolutionise your CAE experience.
For nearly 20 years MASTA has been the trusted solution for mechanical and electromechanical analysis of transmission systems.
We are proud to introduce to you MASTA for electromagnetic analysis of electric machines and integrated electrified drivetrains.
MASTA 12 introduces brand new modelling and analysis capabilities to keep you at the forefront of an industry forever pushing its own boundaries.
From traditional heavy industry to cutting edge electric machines, MASTA 12 has you covered whatever your application.
This latest release builds on the strengths and successes of previous versions and includes several advanced enhancements.
Below summarizes the major updates in the latest release of MASTA, for further details get in touch with us today.
Electric Machine Design and Analysis
Design electric machines for increased power density, increased efficiency, refined NVH, reduced cost and reduced weight. MASTA 12 includes brand new capabilities for the electromagnetic design and analysis of electric machines:
- Design multiple machine types – Interior Permanent Magnet, Synchronous Reluctance and Permanent Magnet Assisted Synchronous Reluctance machines. Further machine types will be added in future releases
- Template based models – Build and modify template based electric machine models. Ideal for quick concept design and parameter studies. Templates includes all key geometry parameters, including e.g. rotor notches and tooth asymmetry for NVH optimisation
- CAD based models – Import and modify fully detailed CAD geometries for full flexibility in geometry details for all machine parts e.g. flux barriers, magnet regions, stator teeth, notches. Convert template based models to CAD based models at the click of a button to add further geometry details. Parameterise CAD based geometry and drive those parameters in MASTA, via RUNNA and via Scripting
- Full Electrical Steel and Magnet Materials Database – MASTA includes a fully populated database for electrical steel and magnet materials from suppliers from all major regions including Europe, USA, China and Japan. Electrical steels include detailed nonlinear BH curves and core loss data. Add custom materials with user defined inputs.
- Windings – Automated winding configurations with high winding factors. Specify a custom winding via individual coil specifications. Winding diagrams and winding MMF charts.
- Electromagnetic Analysis – A high fidelity 2D FE based electromagnetic analysis. Default FE mesh setup with controls for user modification. Analyse load cases with speed, current and current angle inputs. Results displayed in 3D view and detailed reports include:
- Flux Density
- Flux Linkages
- Voltages
- Inductances
- Power loss – Including winding, core and magnet losses
- Torque – Including average torque and torque ripple
- Dynamic stator tooth forces
- Efficiency Map and Maximum Speed Torque Curve analyses – Generate map based non-linear DQ models of the machine enabling:
- Analysis of single load case with speed, torque and control strategy specified
- Calculation of Maximum Speed Torque curve
- Generation of full efficiency maps for a specified control strategy
- Skewed Rotors – Analyse machines with skewed rotors via a sliced 2.5D analysis
- Eccentricity – Include static and dynamic eccentricity and their effect on dynamic forces. Calculate unbalanced rotor forces
- Scripting – As with other MASTA design and analysis capabilities, the new electric machine functionality is available via MASTA’s powerful API and scripting capabilities
Electric Machine and Full Electrified Powertrain NVH
A unique integrated solution within a single package for the calculation of electric machine and gear excitations and the dynamic response of the full system to them.
Electric machine dynamic forces and torque are calculated via MASTA 12’s new electric machine capabilities.
Gear transmission error and misalignment excitation forces calculated by MASTA’s high fidelity Loaded Tooth Contact analyses.
Dynamic response of full system electric powertrain models seamlessly calculated using MASTA’s frequency domain NVH analysis.
New Advanced High Speed Bearing Quasi Static Analysis
A new six degree of freedom per rolling element ball bearing model. Removes the need for raceway control assumptions, which are assumptions commonly made at high speed.
The model is coupled with MASTA’s System Deflection analysis leading to more accurate results at high speed and including accurate calculation of power loss with a breakdown of contributing components.
This advanced model includes a visco-plastic plus asperity effect lubricant friction and dry friction model.
All major contributions to the forces on the rolling elements are included, including: Contact normal force, gyroscopic moment, centrifugal force, hydrodynamic drag, elastic rolling resistance moment, hydrodynamic rolling and pressure forces, sliding friction.
A related fully dynamic model is in development which includes all contributions in this quasi static model together with a cage model.
This dynamic model will be available in an upcoming version of MASTA.
MASTA Usability Improvements
- Save Results – It is now possible to save results from MASTA’s Power Flow, System Deflection, Advanced System Deflection, NVH and DRIVA analyses. Results can be saved within the MASTA file or saved to a separate results file. Results can be saved and loaded via scripts.
- Settings in MASTA File – All per machine settings from the Edit > Settings menu which effect results have been moved to the MASTA file. This guarantees reproducible results when a MASTA file is run on any machine.
Cylindrical Gear Microgeometry per Flank Input
Flank measurements can be imported for each individual tooth flank via an external file format or user specified.
This functionality adds fidelity to MASTA’s LTCA and Advanced System Deflection calculations together with the dynamic response of the system to the resulting transmission error via MASTA’s Gear Whine analysis.
