KISSsoft Changelog Version 03/2013 - Service Pack 2

KISSsoft - Bearing calculation

SP 2 - Bearing (stand alone version W51): Outer ring rotationThis affects only the stand alone inner geometry bearing calculation (W51): When a connection to ashaft file was used, and for the selected bearing's outer ring a misalignment was defined, thismisalignment was taken into account twice.

KISSsoft - Gear calculation

SP 2 - Planet contact analysis/KH with carrier deformationThe complex movement of a planet carrier was not considered correctly when all of the followingconditions were true: 1. planet deformation was defined from shaft file 2. carrier deformation wasdefined from own input 3. left flank of the meshing under consideration was in contact

SP 2 - Documentation of YM in duty cyclesYM in duty cycles was only documented correctly for element no.1, for all the other elements always1.0 was documented (but YM was used correctly in the calculation).

SP 2 - Lifetime and trasmittable torque reportCalculations with duty cycles: Lifetime and trasmittable torque report was not made, showingmessage 'not consistent', when 'Consider load spectrum' was deactivated.

SP 2 - Powerloss calculation of gear chains in gear pair contact analysisThe powerloss calculations was not working for the gear chains in the pair contact analysis.

KISSsoft - General

SP 2 - Saving database results in program crashIf you add a data set in the tapered roller bearing table saving the database will result in a crash or afrozen program. Other tables might also be affected.

SP 2 - Update of DatabaseDue to an error in the conversion the update of the database from 2012 or an older version leads tocorrupted character strings in the copied data sets. If you already updated the database rerun theupdate and confirm the overwriting of existing data sets. In case you have many data sets added toyour database you can download the original files for 2013 from www.KISSsoft.ch/public/database.zip. Extract the files into your kdb directory overwriting the updated files. Attention: All user data setsadded in release 2013 will get lost. Contact our support team if you have questions about this. Weapologize for any inconvenience caused by this error.

SP 2 - Calculation of curvature of toothforms imported via dxf (only internal gears)The normals and curvatures as shown in the 2D graphics of imported toothforms had the wrong signfor internal gears if defined by arcs. Affects contact analysis.

KISSsoft Changelog Version 03/2013 - Service Pack 1

KISSsoft - Bearing calculation

SP 1 - Stress/lifetime calculation for roller bearingsThis affects only the "Rolling bearing ISO/TS 16281" module: The stress and lifetime calculation forgeometric splitting of rollers was wrong.

KISSsoft - CAD interface

SP 1 - Settings of calculation fileThe date and time from the calculation file wasn't read correctly, when the check, if the model is

http://www.KISSsoft.ch/patches.htmhttp://www.KISSsoft.ch/public/database.zip

actual, was made. (Autodesk Inventor, NX, SolidEdge, SolidWorks)

KISSsoft - Gear calculation

SP 1 - Eccentric Crowning and Profile barelling was not selectableEccentric Crowning and Eccentric Profile barelling was not selectable in the profile optimizationdialog of the gear cylindrical gear calculation.

SP 1 - Sorting Solutions of Profile OptimisationSorting of solution id's in profile optimisation dialog of cylindrical gear calculation was improved.

SP 1 - Toothform update problemTooth form (in the graphic) was not updated properly while selecting a solution in rough- and finesizing dialogs of the gear calculation.

SP 1 - Symbols in varying quality input windowFixed the symbols for helix form deviation and Single normal pitch deviation of DIN 3961 in Varyingquality input window.

SP 1 - Flank overlap of 3D bevel gearFlank overlap in property window of 3D bevel gear system was shown in wrong unit.

SP 1 - 2D geometry of bevel gear2D geometry for inside and outside tooth ends was not avaiable, when topological modification areused.

SP 1 - STEP file in unicodeFixed saving 3D geometry in STEP format with unicode file name. Parasolid formats (X_T, X_B) arestill not working.

SP 1 - Conditions for fine sizing of cylindrical gear1. Enable "Calculate geometry only" if the main calculation method is "Only geometry". 2. Disable"Suspend results which do not meet required safety factors" if the main calculation method is "Onlygeometry" or "Static calculation".

SP 1 - Tip relief factorTip relief factor (scoring and micropitting): Ca value used is set to 0, if Ca is much too big (Ca > 2 *Ceff). Report had some errors in printing 'Ca is optimal'. Ca is only considered as 'optimal' if the Flag'Consider Tip releif as optimal' is set.

SP 1 - Method DNVCalculation according DNV: Additional restriction for YC factor implemented.

SP 1 - Cast steelCast in ISO6336-3: for YrelT formula 58 instead of 59 was used

SP 1 - Root form diameter gear 2Calculation of dFf of Gear 2 with Protuberance was sometimes wrong, when Gear 1 did not have aProtuberance.

SP 1 - Contact analysis converging problems for very high contact ratioFor gear meshings with very high contact ratio (e.g z1=158, z2=-159) the contact analysis hadconverging propblems. This is fixed now.

SP 1 - Wrong position of slices in contact analysisFor very small number of sections chosen in the tab contact analysis (Accuracy of calculation: OwnInput), the position of slices where wrong. This didn't affect the calculation, but the 3D-Graphics.

SP 1 - Safety Hardened Layer SEHT for gear 2 not displayed

When using duty cycles: Safety of Hardened Layer SEHT for gear 2 was not displayed.

SP 1 - Contact analysis with shaftsSometimes the cross sections defined in a shaft file affected the stability of the calculation.

SP 1 - KH calculation according to ISO 6336-1, Annex EIn a gear chain calculation module (3 and 4 gears), the KH was calculated with the deformation(f/f) of the first pair.

SP 1 - KH calculation according to ISO 6336-1, Annex EThe iteration of gear load according to Annex E is now in addition activated for planet systems (tab"Factors").

SP 1 - K with Duty cycles (Report)K and YM was not printed correctly in the report, when duty cycles with dat-files from data basewere used.

SP 1 - Warning for [tg/rg]If grinding notch data [tg/rg] is set, without using a grinding tool, a Yes/No warning is generated.

KISSsoft - General

SP 1 - Colon punctuation (:) in text fieldsColon punctuation (:) is again possible to be used in text fields. (important to define paths)

SP 1 - Reference ProfileReference profiles are the standard tools for final treatment or modificated ("Corrected") gears ifchoosen generating grinding, not if form grinding. Reference profiles have a sharp tip and a roundedroot. The rounding is generated in the normal plane by the grinding tools rhoaP0. The sharp corneris the crossing point of the tangent of the last point generating the involute with the tip.

SP 1 - Grafik of racks in cubic and quadratic interpolationCubic or quadratic interpolation is unsuitable for racks. In cases it is selected the switch is internallyset to polynomial.

SP 1 - Floating license miscounts active usersWhen using KISSsoft with a floating license (network license) the number of concurrent users loggedin is not counted correctly. Especially installations with only one concurrent access right are blockedcompletely.

KISSsoft - Graphics

SP 1 - 3D analysis of planetary systemIn the 3D graphics after contact analysis of planetary systems, the flanks were not always drawn inthe correct position.

SP 1 - 3D face gear assemblyThe assembly in the 3D tooth system was not correct with radial offset and in some cases with helixangle.

SP 1 - Kinematic graphic not shownKinematic graphic was not shown for planetary gear system calculation.

SP 1 - Unit conversion of 3D-DataUnit conversion of 3D data export was not proper. If the user exported 3D-Graphics, such as normalload, the units were not considered.

SP 1 - Standard view of tooth formThe standard view was set to the whole gear. Now it will adapt to the drawn part, to fit for example

the half tooth for export.

KISSsoft - Shaft calculation

SP 1 - DIN 743: coefficient KV linear interpolateDIN743-2, Table 4: If the diameter is bigger than 40 mm, the coefficient KV will be set based onlinear interpolation to 1.0

SP 1 - DIN 743: beta(dB), K2,and K3 for square grooveThe coefficients beta(dB), K2,and K3 for square groove was calculated with the outer diameterinstead the smaller diameter.

SP 1 - DIN 743: KF for some types of notchesFor experimental evaluated notch factors, all KF were set to 1, this is now corrected.

SP 1 - FKM: For austenitic, stainless steel S-N-curve type IIFor austenitic steels (stainless) weren't set to S-N-curve type II.

SP 1 - The root diameter for splines according DIN 5480The root diameter for a spline cross section according DIN 5480, selected in the list, was wrong.

SP 1 - No strength calculationIt wasn't possible to set the menu item "no strength calculation" in the strength tab.

SP 1 - Solver stability with classic bearing methodIn some cases the shaft calculation is converging, but when you repeat the calculation, the loads inthe bearing are drastically changing. In such cases a quick check to control, is to calculate with adifferent node density (eg. from high to normal).

SP 1 - EigenfrequenciesThe eigenfrequencies (when defined) were not calculated when the "Consider weight" flag was notset.

SP 1 - Approximation of inner geometryThe approximation algorithm of the inner geometry of bearings, for which no manufacturer dataexist, is significantly improved. This can lead to different results, depending on the bearings used.

SP 1 - Point masses on shaft nodesPoint masses on the shaft nodes were considered twice. This influenced the force distribution (due tothe mass weight) and the eigenfrequencies results.

KISSsys - General

SP 1 - Unicode charactersSome Unicode characters are not shown correctly in tables.

SP 1 - Internal gears positioning angleThe positioning angle for internal gears has to be calculated according to the planet contact analysis.

SP 1 - 3D graphic viewer: Power directionThe power direction in the 3D graphic viewer is not shown.

SP 1 - kSysConnectionRollerBearing and kSysConnectionBearing clearanceA reference to the variable 'clearance' is missing.

SP 1 - Contact analysis calculation for a planetary systemThe shafts files are not generated automatically when executing the contact analysis calculation fora kSoftPlanetaryGearSet.

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