**Release KISSsoft 03/2018**

KISSsoft-03-2018-SP1.exe (20. Apr. 2018)Download

KISSsoft-03-2018-SP1.zip (20. Apr. 2018)Download

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**Changelog**

KISSsoft-03-2018-Servicepack_changelog.pdf Download

**CHANGELOG SERVICE PACK 1**

KISSsoft - Bearing calculation

SP1 **Values in bearing DB were rounded to integer**

For some db columns, the values were rounded to integer instead of keeping them as floating point. This could cause some deviations for very small bearings where the rounding error was relevant.

SP1 **Inner geometry approximation for needle cages**

In many cases the inner geometry approximation for needle cages did not work and resulted in very unrealistic values for the the number of rolling bodies and roller length. With this fix, the estimation based on C and C0 is now very accurate and robust.

KISSsoft - CAD interface

SP1 **Autodesk Inventor: Interface to Autodesk Inventor 2019**

Interface to Autodesk Inventor 2019 implemented.

KISSsoft - COM

SP1 **Improvement: Retrieve number of members in dynamic arrays via COM**

It is now possible to get the number of members in a dynamic array via a COM call to the size() function of the variable.

Example: GetVar("shafts[0].result.bending.size()")

KISSsoft - Gear calculation

SP1 **Non-circular gears**

In some cases for non-circular gears, error message appeared stating that the file for the operating pitch line of gear 2 doesn't exist. This is now fixed.

SP1 **Excitation force calculation deactivated for stepwise contact analysis over COM-Interface**

The excitation foce calculation was wrongly activated for stepwise contact analysis calculation over COM-Interface. This was setting results to 0 and is now fixed.

SP1 **Planetary system contact analysis was overwriting face load factor results**

The planetary system contact analysis was overwriting face load factor results according to ISO 6336-1, Annex E. This is fixed.

SP1 **Load spectrum selection switched to own input**

The load spectrum switched to own input after changing the reference gear for planetrary gears.

SP1 **Modification for mold making**

The points in the root area of the gears in the operation of modification for mold making were not calculated correctly. This is now fixed.

The calculated tooth form is now slightly different in the root area.

SP1 **Ball diameter for worm gears**

In some cases for worm gears (high tooth thickness tolerances, tooth thickness modification factor xs<>0), the theoretical measuring ball diameter was not calculated correctly. This is now fixed.

SP1 **Contact analysis had changing results**

Contact analysis with nominal load and shafts had sometimes changing results. This is fixed.

SP1 **Proportional axis misalignment of planetary system problem**

Proportional axis misalignment of planetary system was calculated with the wrong carrier torque in case of ISO 6336-1 Annex E calculation with load spectrum. This is now fixed.

SP1 **Calculation example CylGearPair5 changed**

The calculation method for example CylGearPair5 was changed from VDI 2545 (YF method B) to VDI 2545 modified (YF method B).

SP1 **Sizing power and torque for asymmetric gears**

Sizing functionality for power and torque did not work properly for asymmetric gears. This is fixed.

SP1 **Modification sizing was crashing for planetary systems**

Modification sizing of planetary systems with contact analysis was crashing, this is fixed.

SP1 **Improvement: Proposition for optimum profile shift x for scuffing according AGMA925**

When any AGMA rating method is selected, the scuffing is calculated according AGMA 925 and is also used in the profile shift proposition tool.

AGMA925 shows as result the scuffing probability. According the standard, if the probability is smaller 5%, then <= 5% must be shown.

Therefore in the layout function for best profile shift x often the result was 5%, therefor not really showing the best value.

We changed this and use now the lowest contact temperature thBMax to find the optimum profile shift.

KISSsoft - General

SP1 **Occasional crashes during startup of KISSsoft**

On some machines, KISSsoft crashed occasionally during startup. This is fixed.

SP1 **Modification sizing had problems showing results**

Modification sizing with ISO 6336-1, Annex E, was not showing results correctly and not able to transfer solution into tab modifications. This is fixed.

SP1 **Icon for KISSsoft User Interface help added to the toolbar**

The icon was only available for internal users.

SP1 **Database tool base material search**

The search function did not work for the column base material in the material tables in the database tool.

SP1 **KUI help did not work in dialogs**

Question mark for KUI help added to the title bar of all dynamic dialogs.

KISSsoft - Graphics

SP1 **Contact analysis had problem with unequal facewidth**

Several contact analysis graphics had problems while calculating gears with unequal facewidth. This is fixed now.

KISSsoft - Root stress FEM calculation

SP1 **Too high maximum stress in some cases of root stress calculation using 3D FEM.**

The area on the tooth surface used for the calculation of the maximum stress of 3D root stress FEM was for some cases falling inside the load zone, giving very high stresses. This is now fixed.

SP1 **Optimization of the mesh generation for 3D root stress FEM, reduce run-time.**

The size of the generated 3D FEM mesh is reduced without affecting the accuracy of the results. The calculation time is reduced.

KISSsoft - Shaft calculation

SP1 **Layout of element editor for sections**

The layout of the element editor for sections and documentation points is improved.

SP1 **Fixed drawing artefacts for gear body in shaft editor**

When using a stiffness matrix for the gear body, the drawing in the shaft editor showed line artefacts for some configurations.

SP1 **Context menu in shaft editor**

In some cases, the general context menu was shown for a shaft element instead of the element specific context menu.

SP1 **Oil level in shaft editor**

The indicator for the oil level was changing its width when the diameter of an element was changed.

SP1 **Element editor update issue**

A change in the element position was not considered in the calculation if

the calculation button was pressed right after entering the value in the

element editor.

SP1 **IMPROVEMENT: Zoom position in shaft editor changed**

When zooming with the mouse wheel in the shaft editor, the center point of the zoom is the current mouse position not anymore the center of the editor.

SP1 **IMPROVEMENT: Zoom level in shaft editor**

The zoom level in the shaft editor remains the same when switching between tabs.

SP1 **Connecting support (joint) positioned at edge position of a shaft**

When a connecting support (joint) was positioned at the left edge position of a shaft, the torque balance was not calculated properly.

SP1 **Campbell diagram lines were mixed in some problems.**

The lines of the Campbell diagram were mixed in some models, due to wrong characterization of the respective eigenmodes. This is now fixed.

SP1 **Custom bearing diameters**

When a shaft calculation was saved with a custom bearing and opened again

on an instance where this bearing is not in the DB, the

selected diameter was not shown properly.

SP1 **Wrong material properties used for calculation of operating bearing clearance**

The calculation for the operating bearing clearance did use wrong material properties (inner ring properties for inner shaft and vice versa).

KISSsoft - Shaft-hub-connections

SP1 **M02b-M02e: values for support factor fs according DIN 6892:2012**

The values for the support factor fs were in KISSsoft according Niemann, we actualized this, now the values are according DIN 6892:2012.

KISSsoft - Splines calculation

SP1 **Spline calculation stopped working**

In some cases for splines with low number of teeth (<11) and profile

shift exactly 0.05, the calculation stopped working. This is now fixed.

SP1 **Wrong text in ANSI table fixed**

Even if the ANSI table was showing Normal Diametral Pitch correctly, the text was set to normal module.

KISSsys - General

SP1 **KISSsys desktop linkage was not working**

The KISSsys desktop linkage was not working because of missing working directory. This is fixed.

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