MESYS Software Version 07/2019 is available


Version 07/2019 of MESYS Shaft and Bearing analysis software is now available
under Downloads and provides additional functionality.

General Extensions

The parameter variation now allows an additional optimization step. For example, the
maximum permissible radial force can be calculated for each case dependent on
different criteria.

Permissible radial force for different speed and axial forces based on several conditions.

Data points of diagrams can now by exported in XLSX format. The curves can also
be copied from one diagram into another, this can be used for comparison of results.
Some additional methods were added to the COM interface. For example, a method
to retrieve the stiffness matrix of bearings and ball screws.

Extensions in the Bearing Calculation

The bearing databases from Schaeffler and SKF are updated to latest data from the
manufacturers. These only contain catalog data. The internal geometry is
approximated by the software.

A new database from HQW Precision GmbH is added containing spindle bearings up
to 30 bore diameter. This database contains internal geometry provided by HQW and
the internal geometry is hidden. Further databases with internal geometry are
available from GMN, IBC and CSC on request from the manufacturer.
Three-point bearings were added as bearing type. They have one full radius on one
race and two radii like in four-point bearings on the other race. The load capacity is
calculated based on angular contact bearings using the free contact angle.
An additional option for roller profiles was added allowing the input of two tangential
radii. Gyroscopic moments can now be considered on all ball bearing types including four-
point bearings, where it was not supported before.

Extensions in the Shaft Calculation

A background drawing can by added by pasting it from the clipboard. Then the shaft
geometry can be drawn as a polygon. This can be used if shaft geometry was just
provided as a PDF. The CAD import as DXF or STEP now also allows a rotation of
the drawing in case the shaft axis is not the x-axis.

                                            Import of background graphic and geometry input as polygon

Harmonic response can now be calculated on periodic displacements in addition to
periodic forces. Excitations can be defined for supports connected to the rigid
environment. They can also be defined for bearings based on inner or outer ring
rotation or for gear mesh frequencies of cylindrical gears.

For planetary gear stages the results are now reported for supports of all planets and
also the results for all gear pairs are provided. They were calculated before but not
available in the standard report or result overview. The results for different planets
can be different in case additional forces are applied to planet carrier or the rings

For 3D-elastic parts with elastic bearings, now contact between bearing ring and part
can be considered. The fitting is then considered in the contact model instead in the
operating clearance of the bearing.

Pressure distribution in a wheel bearing after mounting without external loads. Fitting is considered in contact model.
                                  Piston-rod with elastic bearing ring under pressure and tension.

It is now possible to consider centrifugal expansion on 3D-elastic parts.
Additional new features for 3D-elastic parts are new possibilities for mesh import and
mesh export. Also new faces for connection with supports can now be defined
directly within the software.

Visit us at booth #3933 at Motion+Power Technology Expo in Detroit on October 15-19.







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