MASTA 13

MASTA 13 is the latest release in our leading CAE Software. Read about all of the updates and improvements below.

MASTA 13 Software

Following the launch of MASTA’s high fidelity, High-Speed Bearing Quasi-Static Analysis in MASTA 12, MASTA 13 brings further improvements with a new Dynamic Bearing analysis module.

System optimiser has seen major enhancements, now handling complex planetary systems and improving the quality of candidate designs.

Users can take multi-ratio designs and MASTA will create design candidates based on the user’s constraints.

In addition to this, NVH Operating Maps account for the variation in torque dependent stiffness in Harmonic Analysis.

Also, with their increased popularity, hairpin windings can now be analysed in MASTA’s Electric Machines module.

Extra additions in MASTA 13 include improvements in usability for Python scripting, added support for Ansys 2023, NVH excitation from stator tooth moments and many more.

MASTA 13 electric drive transmission detailed model example.

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Electric Machines Hairpin Windings

Select and configure a viable hairpin winding for your electric machine design.
Coil configuration can be automatically generated and then customized by the user.
MASTA automatically determines if your configuration has strong or weak symmetry.
The dimensions and features for each individual hairpin conductor can be specified.
Conductors can also be selected in CAD.
AC winding losses for hairpin winding configurations can be included in electromagnetic analysis results and charted against time for an operating period.
Visualisation of time-averaged AC losses over a period as well as AC loss density at any point in time are also available.
AC winding losses can also be generated for non-linear DQ flux map models and their effects included in efficiency maps produced by those models.

Classic NVH analysis for gear and electric motor whine can be performed quickly in the frequency domain with a model linearised at a fixed operating load.
A new method to combine frequency domain NVH response over the full operating range to generate a map of responses.
Order cuts and waterfall plots can be produced taking into account torque variation with speed.
Automatically generate separate load cases and combine results, including for exporting and API access.
For non-electric-machine excitations, MASTA can show a Torque Map, which plots the dynamic response against torque and speed.
If the reference power load has its Torque Input Method set to Electric Machine Harmonic Load Data. The torque speed curve will be read from the harmonic load data set.
Important particularly in typical EV applications where gears operate throughout large speed and torque ranges.

In this module a dynamic model of a single ball bearing can be solved for a given time period.
A user can analyse cage design and dynamic behaviour, including the distribution of impact forces, and investigate how bearing geometry, cage design, and lubricant rheology will impact results such as power loss.
The model uses a six-degree-of-freedom model for the bearing elements and a three-degree-of-freedom model for the bearing cage.
Film thickness at the ball-raceway contact is calculated using a method, which includes the effect of the ellipticity of the contact ellipse and covers all lubrication regimes.
Coefficients of friction are calculated using a lubricant model for fully lubricated contacts which considers asperity effects, lubricant rheology, temperature, and pressure.
The calculation of a smearing criterion is performed to assess the risk of ball-raceway smearing.
A comprehensive set of time series results can be plotted, including all forces, moments, and components of power loss on each element and the cage.
The module captures dynamic behaviour that quasi-static models are unable to model, which is especially common at high bearing speeds.
The dynamic analysis is easy to setup and run, as it uses all bearing details and operating conditions from the quasi-static analysis .

The user can perform system optimisation to search through all tooth numbers within the limits set on each gear set to find combinations to achieve the correct ratio as specified by the target ratio on the design state.
System Optimiser uses macro geometry optimisation to find potential gear set designs and selects the combination of gear set designs that meet the specified criteria whilst also satisfying requirements for strength, packaging, and contact ratio.
System Optimiser is an existing tool that has been extensively updated to allow for more complex systems to be considered, and the quality of produced designs has improved. There are also changes to the user interface to improve clarity and allow for greater control of the outputted designs.
The System Optimiser Default Editor comprises of five different tabs, with the first three setting the constraints on each gear set to then find solutions, the fourth giving the user the option to edit the required safety factors, and the final tab performing the system optimisation with options for how exhaustive the macro geometry optimisation should be.