**Release KISSsoft 03/2016**

KISSsoft-03-2016-SP2.exe (10. Jun. 2016)Download

KISSsoft-03-2016-SP2.zip (10. Jun. 2016)Download

** **

**Creo/ProEngineer interface**

**(Additional download, not included in the Service Pack above)**

KISSsoft-03-2016-ProEngineer.zip (07. Jun. 2016)Download

** **

**Database**

W000.KDBDownload

** **

**Implementation of the database**

Database_Patch_EN.pdfDownload

** **

**Changelog**

KISSsoft-03-2016-Servicepack_changelog.pdf Download

**CHANGELOG SERVICE PACK 2**

KISSsoft - 3D geometry (STEP interface)

SP2 **3D geometry of face gear**

The height of the face gear of the 3D geometry model was always using internally fixed value.

Now it's using the input value of haFG from Geometry > Details window.

SP2 **3D skin model for helical gears**

For helical gears, the 3D generation with the option "skin model" didn't produce the model correctly and a solid model was shown.

KISSsoft - Bearing calculation

SP2 **Life modification (aISO) and impurity (eC) factors for lubricants with additives**

1. The impurity factor eC was calculated with k instead of k = 1, if additive was
used and k < 1 and ec >= 0.2. (classic and inner geometry
method)

2. The eC and aISO factors didn't match between classic and
inner geometry method, when additive was used (inner geometry always
considered the additive).

SP2 **Lifetime factors (e,X,Y) for double row angular contact ball bearings**

If a double row angular contact ball bearing had no pressure angle in the database, the lifetime calculation factors (e,X,Y) were not properly calculated and the lifetime results were not reliable. Instead of 0° pressure angle, we calculate now with a default value of 35°.

KISSsoft - Bolt calculation

SP2 **The warning 'the length of engagement is to short' wasn't correct checked**

The check wasn't correct, if the length of engagement (mgesmax < mges) is long enough.

The warning does not show up any more in the examples 'Bolts (VDI 2230, Example 1)' and Bolts (VDI 2230, Example 3).

KISSsoft - CAD interface

SP2 **ProE/ Creo: Worms are not correctly rebuilt after changing helix direction**

Worms are not correctly rebuilt in the cad system after changing in KISSsoft the helix direction.

SP2 **CATIA: the interface stopped during the 3D export**

The interface stopped during the 3D export and an error message enmerged, that some Microsoft dll-files are missing.

SP2 **Solid Edge ST8: CAD version check was wrong**

If you open Solid Edge ST8 the KISSsoft Addin is loaded. During this loading process the addin checks the version number of the cad system.

If the cad system version is not supported by KISSsoft, a warning message shows up, that this version isn't supported.

Solid Edge ST8 is supported in this KISSsoft release, but - wrongly - the message was displayed.

KISSsoft - Connections

SP2 **Documentation of snap ring groove load capacity FN**

The value of the groove load capacity (FN) of the snap ring in the report was wrong, but internally it was used correctly in the calculation.

KISSsoft - Gear calculation

SP2 **Error in license check in planetary gears**

Planetary stages: License check was not working correctly in case of face load factor calculation according to ISO 6336-1, Annex E, when the user doesn't have a license for contact analysis.

SP2 **Error in equivalent VHJ calculation of bevel gear contact analysis**

An error in the calculation of equivalent VHJ values in the contact analysis with bevel gears and shafts is fixed.

SP2 **Profile modifications tip/root relief with transition radius**

The maximum value of factor 2 is now limited with condition L_{I}<0.75*L_{ca}. If the introduced radius is higher than the maximum value, the input is changed to the maximum possible value.

SP2 **Worm gears AGMA6034 improved**

For worm gears according AGMA 6034-B92 up to now only the transmittable torque for Static chill cast or Forged materials is calculated. Now in the report also the transmittable torque for Sand cast and for Centrifugally cast is documented. A minor error in the calculation of material factor Cs for Static chill cast is also fixed.

SP2 **Gear quality according to DIN 3990-41**

When the user select the calculation method as "DIN 3990-41", the gear quality was set according to ISO 1328 by default.

Now the default quality is set as "DIN 3961".

SP2 **Life factor calculation using own Woehler line**

The life factors YNT and ZNT were wrongly calculated when the own Woehler line was used.

The error was caused because the stresses when interpolated were treated as linear instead of logarithmic values.

In some dat-files with SN-curves (DNV materials and Plastic materials) some interpolated intermediate points were also corrected accordingly.

SP2 **Improvement: Negative tooth modifications are implemented**

Until now, the negative modification was possible for pressure angle modification, helix angle modification (parallel), and twist.

Now it can be applied also for the crowning (flank), profile crowning, tip and root reliefs (linear, arc, progressive).

The user should be careful about the definition and it's recommended to check in the profile diagram (K chart).

SP2 **KISSsoft was crashing while running contact analysis with floating sun**

The contact analysis for planetary systems was crashing when the system was calculated considering a floating sun. This is fixed, now.

SP2 **Safeties for nominal torque added to the duty cycle report**

Improvement: For wind turbine certifications with duty cycles the Micropitting safety has to be documented for the nominal torque. Up to now, the MP safety is documented only for the most loaded bin. We added now in the report the MP safety for the nominal torque.

SP2 **Fine sizing of cylindrical gears improved**

Fine sizing of cylindrical gears, due to recent improvements of undercut calculation, was not distinguishing as supposed between variants with and without undercut. Now a message shows up as ,xx solutions discarded because of undercut'. In tab 'Condition III' solutions with undercut can be admitted.

A bug, discarding variants is fixed for the options 'High tooth profile' with εα = εα_target and with εα >= εα_target. Now much more solutions will show up.

SP2 **Improvement: Profile diagram**

Several improvements are made for the profile diagram (K-Chart).

1. The diameters are shown as positive when the user set the notation according to ISO 21771 for internal gears.

2. Always show the markers for the maximum and minimum active root diameters according to the tolerance. Until now, only the minimum or maximum value was shown for external or internal gears, respectively.

3. The position of the legend are improved to avoid text overlap.

SP2 **Starting diameter of profile modification at tip**

The length of the tip profile modification was up to now measured on the real tooth form.

So when the amount of modification Ca was changed, the start diameter of the modification changed slightly.

Now we measure the length on the theoretical involute, and thus the start diameter of the modification will always keep the same.

Note: This change was already included in Patch A but was missing in the patch list.

SP2 **Wrong convergence of contact analysis with planetary systems.**

In some cases of contact analysis with planetary systems, the kinematic (absolute position of gears to each other) was incorrect. This lead to wrong, or not at all, convergence of the system. This is fixed now and may change some results of contact analysis with planetary systems.

SP2 **Problem in bevel gears contact analysis with shaft files**

In some cases the contact analysis of bevel gears with shafts was not calculating the contact pattern correctly. This is fixed now.

Additionally the report of the equivalent misalignment is simplified now.

SP2 **Enhancement of excentric crowning sizing**

Sizing of excentric crowning was enhanced to approximate a modification in cases where either the value C1 or C2 is zero. Now a message will show up in this case, that it is not possible to produce a 100% perfect result.

SP2 **Enhancement of crossvariation of modification sizing**

The crossvariation of modification sizing (value/Factor1/Factor2) is enhanced. Now an additional crossvariation between Factor1 and Factor2 is implemented.

SP2 **Profile correction in root**

When using the linear root profile modification, in rare cases with relatively short modifications and high tooth form accuracy, the modification was not applied.

SP2 **Generate temporary files for machine tools**

When using this option in the module specific settings, the tooth form is now printed with 9 decimal digits, instead of 3.

SP2 **Error in torque and power sizing with shafts**

Sizing torque or power was not working in cases of shafts used for face load factor calculation according to ISO 6336-1, Annex E, with and without loadspectras. This is fixed now.

SP2 **Translation Error in Modifications**

The designation "Tip
relief, linear with profile crowning" is now translated into the correct language.

SP2 **Modification of SN-curve according Haibach**

Improvement: A new choice, Haibach original, is added to the list of possible modifications in the endurance range of the SN-curve. The modification until now called 'Haibach' is now called 'Haibach modified', but unchanged, this modification has a slope of 2*p (as described in the help). The new 'Haibach original' has a slope of 2*p-1 (as given in the Haibach book). The modification according 'Cortan/Dolan' is unchanged, with a slope of p.

For explication of the slope p: See ISO6336-6.

KISSsoft - General

SP2 **Downloading license files did not work**

It was not possible to download license files with the license tool.

KISSsoft - Graphics

SP2 **Drawing of cylindrical gear system**

1. In the drawing of the cylindrical gear system, if an intermediate gap was set, it was always shown.

2. The axial offset bv was not considered in the drawing.

KISSsoft - Proof of strength with local stresses

SP2 **FKM-Guideline: the plastic notch factor npl were in some cases wrong**

The plastic notch factor npl for materials with chemic-thermal or
thermic surface hardening were not adapted to the changes in the 6th edition. In the 6th edition this is calculated with the surface hardness. Also values for case hardened steels are changed.

KISSsoft - Shaft calculation

SP2 **Saving user-defined bearings from KISSsys files**

KISSsys did not save the user-defined bearings in the model, even though KISSsoft was capable of this feature. This functionality is now corrected and universal in both KISSsoft and KISSsys.

SP2 **Sorting of the load cycle bins wasn't correct**

The sorting of the load cycle bins (the biggest to the smallest) wasn't correct in the calculation according DIN 743 and FKM.

SP2 **Fixed a crash of the shaft element editor when KISSsoft is called from KISSsys**

When the shaft calculation was called from KISSsys the element editor crashed in some cases. Due to some repainting in the background, the shaft editor was taking CPU power even if nothing was calculated.

SP2 **Shaft element list did not show US customary units**

The elements list did always show the metric units and changing by the user was not possible.

KISSsoft - Splines calculation

SP2 **Spline ANSI 92.1, Major Diameter Fit, Tolerance of Hub**

For Spline ANSI 92.1, Major Diameter Fit, Root diameter tolerances of Hub were inverted.

SP2 **Improvement: Participation factor kphibet according Niemann strength calculation**

The participation factor kphibet for a strength calculation according Niemann is defined based on DIN manufacturing quality. But as the manufacturing tolerances, for the same quality number are very different between DIN and ISO/ANSI this was misleading, when ISO4156 or ANSI92.1/.2 is used. An ISO/ANSI quality of 6 corresponds approximately to a DIN quality of 9..10! We decided therefore to add (for ISO 4156 and ANSI profiles) to the quality Q +4 for the determination of the participation factor. The value used is also documented in the report as 'corresponding DIN quality'.

KISSsys - General

SP2 **Running scripts**

Some calculations and reports were not generated correctly when they were called from a script.

SP2 **The database load spectrum table is now write protected**

The table to show the load spectrum loaded from KISSsoft database was not write protected.

SP2 **Element tree, list and editor did not close correctly from KISSsys**

If a shaft calculation was started from KISSsys, the element tree, the element list and the element editor remained open if they where undocked when KISSsoft was closed.

SP2 **Correction in the output of housing deformation results in the FEM coordinate system.**

The output in the results table of the housing deformation results in the FEM coordinate system was wrong.

**CHANGELOG SERVICE PACK 1**

KISSsoft - 3D geometry (STEP interface)

SP1 **Skin model for single tooth cylindrical gears**

For cylindrical gears with only one tooth, the skin model is generated correctly now.

SP1 **Cylindrical 3D gears with skin model**

In the 3D gear geometry for cylindrical gear, the root was missing when displaying it as a skin model.

KISSsoft - Bearing calculation

SP1 **Bearing damage for bearings with 0 speed**

For bearings with zero speed, both the lifetime and the damage were documented as infinite (L = 10^6 and damage = 9999.99 respectively). This was wrong, and the damage should NOT be printed as infinite, but rather very small (eg. 1%, depending on the required lifetime).

KISSsoft - Gear calculation

SP1 **Improvement: Measurement over 2 pins acc. to AGMA 2002-Cxx**

Measurement over 2 pins (free and transverse) acc. to the proposed revision of AGMA 2002-Cxx are added for cylindrical gears.

SP1 **Tab reference profile: Inner gears**

In the user interface for the tab reference profile, the conversion to diameter for internal gears was wrong, when the option to display internal gears with positive diameters was chosen (definition according to ISO instead of DIN).

SP1 **Conversion of addendum coefficient of gear for non-topping hobbing cutter**

In the user interface, the conversion of addendum coefficient of gear for a non-topping hobbing cutter was not working properly.

SP1 **Tooth thickness at reference line**

The input of the tooth thickness at reference line for hobbing cutter was not visible and therefore couldn't be changed.

SP1 **Center distance tolerance for gears (own input)**

The user input for center distance tolerance of gears (excluding gear pair) was not working properly, when the tolerance was set to "Own input".

SP1 **Fine sizing of planetary gear with contact analysis**

The
"With calculation of the transmission error" option in the fine sizing
of planetary gears was not working and giving no results.

Now the problem is fixed.

SP1 **Topological modification for internal gear**

The topological modification for internal gear was not working correctly
caused by the wrong assignment of the tooth length factor.

The problem is fixed now.

SP1 **Wrong equivalent H and J deviation in bevel gear contact analysis.**

In cases of bevel gear tip is pointing to the negative y direction on a shaft, the bevel gear contact analysis was calculating a wrong equivalent H and J deviation. This is fixed now.

SP1 **Grinding notch effect with internal gears**

For internal gears, when grinded, the addendum hGrind of the pinion like grinding tool is now calculated and documented.

This value is now used to calculate more precisely the grinding notch factor Ysg.

SP1 **Wrong sign of V deviation in bevel gear calculation**

The sign of the V deviation in bevel gear contact analysis and 3D-System was wrong. Additionally the G deviation was renamed into J deviation according to Klingelnberg and the respecting info image was extended.

SP1 **Sense of rotation error message for bevel gear contact analysis**

The bevel gear contact analysis with shafts showed an error regarding the sense of rotation in case that one of the shafts has a bevel gear with tip pointing to the left (coordinate center point). This is fixed.

SP1 **Linear tip and root relief with transition radii**

2 additional cases considered: If Factor 2 is 0, then transition radius r is calculated so that LI = 0.8Lca. If Factor 2 is so big, that LI< 0.5LCa, then transition radius r is calculated so that LI = 0.5Lca.

SP1 **AGMA 925 calculation for planetary gear**

The load distribution factor Kγ was not considered in the AGMA 925 calculation.

Now the problem is fixed.

SP1 **Planet Carrier deformation : Wrong distance between node I and II for calculation of double sided carriers**

The proportional "Tilting of bolt relative to planet carrier axis" (drp, dtp) at dialog "Define axis alignment" was calculated with the wrong distance between node I and II for double sided carriers using Code_Aster.

SP1 **Improvement: Excel-Sheet for Topological Modifications**

Topological Modifications are defined in dat-files. We added in the \dat folder an Excel-Sheet 'Topological Crowning.xlsx' to produce the table with the definition of the modification. The sheet includes also an example how to define a negative profile crowning.

SP1 **Ramp angle on hobbing cutter with pre-manufacturing**

In some cases, the ramp angle was set to 0, when a hobbing cutter and pre-manufacturing was chosen.

KISSsoft - General

SP1 **Improvements in KISSsys 3D viewer**

Various improvements of the 3D viewer for KISSsys (eg. the placement of the shafts was not correct if the shaft orientation was complex).

SP1 **ALL TOPICS mentioned in PATCH G of 2015 ARE ALSO PART OF THIS PATCH, but not mentioned anymore**

Please consult on our website the list of topics for Patch G (7) of 2015.

KISSsoft - Graphics

SP1 **Improvement on manufacturing drawing**

For the manufacturing drawing, there is a new command to keep a fixed scale of a graphic.

With the command fixedscale 1, it's possible to have the
drawing 1:1. The window command afterwards specifies the x,y-values
for the topleft corner of the drawing.

Example:

draw 2DGeoToothDrawing1

fixedscale 6

window: 270, 297

KISSsoft - Pin calculation

SP1 **Spiral spring pin: Admissible shear stresses for spring pins**

The admissible shear stress τbmin values from the standard (f.e. DIN EN ISO 8748) for the spiral spring pin are for the double shear cases.

In single shear case can be used only half of the values from the standard. This was documented in older standards (f.e. DIN 1481:1978).

KISSsoft - Shaft calculation

SP1 **Crash due to the eigenfrequency calculation of complex shafts.**

Sometimes the eigenfrequency analysis of complex shafts or big shaft systems could result in a crash of the software. This is now fixed.

SP1 **Wrong sign while considering gear body deformation in shaft calculation.**

The tooth trace modification of the shaft calculation did consider the influence matrix for additional gear body deformation with the wrong sign. This is fixed.

KISSsoft – Gear body FEM calculation

SP1 **Unsymmetric gear body influence matrix.**

The influence matrix generated for an unsymmetric gear body using FEM calculation had an error.

KISSsoft – Planet carrier FEM calculation

SP1 **Planet carrier FEM calculation using step file**

There was a problem starting the FEM calculation of a planet carrier, using the geometry from a step file.

KISSsys - General

SP1 **Inclusion of housing stiffness without FEM initial offsets.**

In the case the imported stiffness matrix did not include any FEM initial offsets, the calculation was returning an error.

SP1 **Reading of ABAQUS reduced stiffness matrix with 4 master nodes.**

Sometimes there was an error reading an ABAQUS reduced stiffness matrix with 4 master nodes. The matrix was not read and the calculation could not proceed further.

SP1 **Gear modification information in the ExportSystemData function.**

Added gear modification information in the ExportSystemData function.

KISSsoft AG | Rosengartenstrasse 4 | 8608 CH-Bubikon | phone: +41 55 254 20 50 | info@KISSsoft.ch