MESYS Software Version 08/2021 is available


A new version of the MESYS shaft and rolling bearing analysis software including new functionality is available. The bearing analysis software allows the calculation of the load distribution within the bearing and bearing life according ISO/TS 16281 and it is integrated in a shaft system calculation with additional possibilities like modal analysis, strength calculation for shafts and interfaces to gear calculations. Currently the software is used by customers in 29 countries on 4 continents.

General Extensions

Some start parameters were added to allow an easier interface with PDM systems. Using the COM-Interface now direct access to diagram data is possible and the user can change diagram axes from linear to logarithmic scale.

In the “File” menu an “Export as” was added and template files can now be structured using subdirectories.

Reports can now be generated in XLS or XLSX format and data can be imported from XLSM-Files.

The general interference fit calculator was extended by results for maximal axial force and torque.

Extensions in the Bearing Calculation

The bearing databases with catalog data from Schaeffler and SKF were updated. Schaeffler now provides the number and dimensions of rolling elements and the database has to be provided in encrypted format with hidden internal geometry. For the SKF database the dimensions of the rolling elements are still approximated. The detail geometry like curvatures or profiles are still approximated in both cases.

Regarding the bearing databases including internal geometry, the database from CSC was extended by additional bearing series. The database from HQW/Barden is unchanged from last version. On request additional databases are available from some bearing manufacturers, for example from GMN or IBC.

As new bearing type half radial spherical roller bearings are supported. This allows the definition of asymmetric spherical roller bearings within the shaft calculation. The contact angle and also the dimensions of rolling elements can be defined differently for each row.

A calculation of grease operating life was added analog to Schaeffer “Wälzlagerpraxis”.

Three-point bearings can now be calculated considering elastic outer rings. The bending stresses for calculations with elastic outer ring can now be shown as 3D-plot in addition to the existing 2D-plot.

Additional diagrams for sliding speed or PV on the major exis of the contact ellipse have been added.

Several additional small extensions are mentioned in the update documentation, so for example now diagrams for all load spectrum elements instead of the first 30 can be shown.

Extensions in the Shaft Calculation

In the shaft calculation for cylindrical gears an axial offset for the load can be defined in case the gears are considered as point loads. This offset can also be varied within load spectra. For masses and imbalances an axial offset can be defined now; this allows a center of mass outside of the shaft geometry.

A generic format was added for the interfaces to gear calculations. For the interface to TBK 2014 or eAssistant now the gear data is saved with the gear elements and therefore kept constant between different calculations.

For 3D-elastic parts the equivalent radiated power (ERP) is added as output and as graphics for harmonic response.

The positioning of 3D-elastic parts can now be done according to selected connections and the mesh can be divided into several subdomains, for example to assign different material properties.

The COM-Interface was extended and now allows to set parameters for force elements and an export in REXS format, which is supported in version 1.3.

A demo version is available for download at the link

For additional information, please contact
Technoparkstrasse 1
CH-8005 Zürich
[email protected]
+41 44 455 6800