KISSsoft 2024 SP1

General
SP 1 - Data representation tables extended.
Data representation tables have been extended with headlines.
SP 1 - Helix angle cylindrical gears
Improvement in helix angle communicated to the shaft module for some cylindrical gears cases.
SP 1 - Permissible tensile stress σMzul calculation
The permissible tensile stress σMzul is now calculated with the formula 143 according to VDI 2230 paper 1 (2015).
SP 1 - Shrinking diameters is now working in all cases
Shrinking diameters was not working in some cases, this is now fixed.
SP 1 - Spline calculations
Shaft-hub calculations are now performed with any given torque to allow the full system analysis.
SP 1 - Transparency of elements shown in a cut view of the 3D viewer
When a cut view is activated in the 3D viewer, the transparency of the elements shown is now updated correctly.
SP 1 - US customary units for data representation tables
Data representation tables show US customary units.

KISSdesign General
SP 1 - Bevel gear tables extended
Values have been added to the data representation tables for bevel gears.
SP 1 - Deleting all bins or columns
Deleting all bins or columns was not working for some old models, it is now fixed.
SP 1 - Drawing number added to KISSdesign table
The shaft drawing number has been added to the data representation table in KISSdesign.
SP 1 - Graphical representation of rotation arrows, torque and forces.
The scale and position of rotation arrows, torque and forces. is more accurate for models with very small gears.
SP 1 - Hand of helix of a internal gear in 3D viewer
Hand of helix of a internal gear in 3D viewer is correctly shown.
SP 1 - Housing deformation calculation when the shaft strength calculation is ignored
The housing deformation calculation does not run, if the shaft strength calculation is ignored in the control panel.
SP 1 - Load spectrum requested lifetime with factors
When the requested lifetime is defined with factors in the load spectrum tab, the values are not changing anymore while changing the calculation type.
SP 1 - Not loaded gears are ignored during load spectrum
Not loaded gears throughout a load spectrum calculation are now completely ignored.
SP 1 - Own input losses can now be defined as torque or power
Own input losses can now be defined as torque or power, and not only as efficiency.
SP 1 - Part lists do not show data when calculations were not run
Bearing and shaft list reports do not show data when shaft calculations are ignored, and gear list report does not show data when "Only kinematics" is selected.
SP 1 - Sense of rotation for fixed shaft showing the proper direction
With a fixed shaft, the sense of rotation is now showing the correct direction, depending on the relative speed to the carrier.
SP 1 - Update of the data of idle gears
The gear data of the idle gear in a multimesh gear calculation is now passed correctly to the shaft calculation, for the case of taking the gear body into account.

Sketcher
SP 1 - Annotation improvements
Several minor issues with annotations have been improved. The data update between annotations and element editor has also been improved.
SP 1 - Mirroring face gears
Mirroring face gears is now possible.

Forced Response Gears
SP 1 - Forced response analysis of the gear mesh outputs in the time domain
Forced response analysis of the gear mesh outputs in the time domain is shown based on the last running speed.

Gears
SP 1 - Bold print variant solution in gear sizing results
Bold print indicator fixed for gear sizing result tables.
SP 1 - Considering tooth contact stiffness from tooth form in load spectrum
Tooth contact stiffness from tooth form is now considered correctly in the load spectrum calculation.
SP 1 - Gear body overlaps with gear geometry in the 3D viewer.
Fix of the overlap of the gear body and the gear geometry in the 3D viewer (in gear calculation, shaft calculation and KISSdesign).
SP 1 - Input of temperature in the load spectrum
The input field for the temperature in the load spectrum table is now shown correctly.
SP 1 - Material properties of Duracon M90-44 from Polyplastics
Root fatigue data is added for plastic material Duracon M90-44 from Polyplastics. Some general material properties are also updated.
SP 1 - Rounding for number of teeth
Double value for number of teeth is rounded instead of truncated for the integer setting for the number of teeth.
SP 1 - The oil viscosity graph is shown correctly for small viscosity values
The oil viscosity graph was now correctly drawn even when the oil viscosity is smaller than 10.

Cylindrical Gears Rating
SP 1 - Improvement in the calculation of YCHD and ZCHD factors calculated according to FVA 271
YCHD and ZCHD factors calculated according to FVA 271 now properly consider the min/max hardening depth defined by the user.
SP 1 - Influence of alternating bending on the flank safety factor
Tooth flank load spectrum setting "Calculate both cases and document the unfavorable case" works correctly in cases that YM factor for all gears is set to 1.0.
SP 1 - Scuffing results in the special Load spectrum report
Scuffing results per bin are now shown again in the special load spectrum report.

Cylindrical Gears Contact Analysis
SP 1 - Comments added back to contact analysis graphics
The texts in the contact analysis graphics were missing and now are available in the comments window.
SP 1 - Legends added back to contact analysis graphics
The legends were missing from the contact analysis 2D graphics and are now added back.
SP 1 - Number of pitches is set based on pitch error
If the "Own input" is not selected for resolution, the number of pitches used in the contact analysis will always be 1, if there is no pitch error, and 2, if there is pitch error. Previously it didn't revert back to 1 when pitch error was removed.

Cylindrical Gears Geometry
SP 1 - Pinion type cutter dimension in tab Tooth form
Pinion type cutter dimension in tab Tooth form were not drawn correctly in case a full rounding or chamfer was set.
SP 1 - Profile diagram shows individual modification curves properly
Profile diagram shows individual modification curves properly when the axis settings is set to roll angle, diameter and rotation angle.
SP 1 - Step export of a planetary system that contains a planet carrier
Improved stability of the software during the step export of a planetary system that contains a planet carrier.
SP 1 - Tool drawing with dimensions
Several improvements were made to the tool dimension drawing.

Globoid Worm Gears
SP 1 - The user input for J0T coefficient
The user input J0T coefficient for wear calculation is now saved in the calculation file.

Shafts
SP 1 - Calculation of factor KWK,RS according to FKM
Formula for the calculation of factor KWK,RS to estimate the fatigue limit of surface treated components according to FKM has been corrected.
SP 1 - Internal message for beams fixed in shaft editor
Internal RotCAD message for beams has been fixed in the shaft editor.
SP 1 - KAK factor was calculated with maximum equivalent stress instead of the equivalent stress per load bin
The KAK factor per load bin was calculated with the maximum equivalent stress σmv and τmv instead of the equivalent stress per load bin.
SP 1 - Shaft solver convergence
Convergence of shaft solver for classic bearing calculation has been improved for some cases.
SP 1 - Update of a gear calculation file connected to a shaft calculation file
Improvement for the case a shaft calculation file reads the gear data from a gear calculation file and something changes in this gear calculation file.

Bearings
SP 1 - Fatigue load limit for custom rolling bearing read from the file
Fatigue load limit Cu for custom rolling bearing, whose data was read from the calculation file, was not considered in the calculation of modified reference rolling bearing lifetime. Instead, internally calculated fatigue load limit was used.
SP 1 - Rolling bearing damage for single load level and lifetime from load spectrum
When calculation with single load level and lifetime from load spectrum is chosen, rolling bearing damage calculation now considers lifetime from chosen load bin (before nominal required service lifetime was considered).
SP 1 - Rolling bearing lifetime calculation with single bin calculation
Rolling bearing lifetime calculation for single bin with the lubricant temperature defined individually per bin has been improved.
SP 1 - Rolling bearing table structure
The structure of the rolling bearing table has been improved.

Bolts
SP 1 - Typing error in formula of the guideline VDI 2230 paper 1 (2015) to calculate the length of engagement
Typing error in formula of the guideline VDI 2230 paper 1 (2015) to calculate the length of engagement (Bolt thread critical) is fixed. In formula 213 denominator D1 instead of dmin should be written.

Proof of Strength with Local Stresses
SP 1 - Reference stress slope G'σ3 for FKM calculation
The reference stress slope G'σ3 (Gτ) is now calculated acc. to FKM guideline 7th Edition (2020) equation 4.3.18.

FEM Calculations
SP 1 - Fine tune the FEM mesh density of big planet carrier models
Improve between runtime and accuracy of the FEM calculation for big planet carrier models.
SP 1 - Improvement of the LTCA - FEM interface for gear body calculations
The internal interface of LTCA to FEM in case of gear body simulations was improved and made more robust. Appropriate user message was added.
SP 1 - View of the gear body in the 3D graphic of the gear
The gear body was not shown in the 3D view of the gear after a gear body calculation.

COM-Interface
SP 1 - Running rough sizing through COM or skript
Running rough sizing for gears is possible again through COM or skript. The corresponding functions are setupRoughSizing() and calculateRoughSizing().

Scripting
SP 1 - Graphic generation through SKRIPT
Improvement of image generation from SKRIPT. Robustness issues have been resolved.
SP 1 - Stopping a script causes deletion of code
Bugfix of the editor losing the previous run code, when the running script was stopped manually through the editor.

CAD-Interfaces
SP 1 - Interface to Autodesk Inventor 2025
Interface to Autodesk Inventor 2025 added.

Interfaces for Data Exchange
SP 1 - Clean additional mass component attributes in the REXS_Export function
Clean attributes in additional mass component in the REXS_Export function of KISSsys.
SP 1 - GDE export of design_helix and design_profile
Values in the GDE file for design_helix and design_profile are now exported in millimeter units.
SP 1 - GDE export of internal gears
Measurement tolerances for MdK are now exported with the correct sign for internal gears.

KISSsys
SP 1 - Database access error for shaft calculations with needle cage bearings
When trying to calculate KISSsys files created before release 2024, which contain needle cage rolling bearings with wrongly set clearance, a message with Database access error was being shown.
SP 1 - Journal bearings' reaction forces
Reaction forces from the journal bearings are now transferred from the shaft calculation to the system calculation.
SP 1 - Shaft axis alignment dialog
The selection of own input to calculate the axis alignment is now available.
SP 1 - Spiral bevel gear setting
The setting for spiral bevel gear in the bevel gear calculation is transferred from KISSsoft to KISSsys.
SP 1 - Support's reaction forces
Reaction forces from the supports transferred from the shaft calculation to the system calculation.