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[email protected] KISSsoft Release 03-2012 Slide 1 2012-04-10 GENERAL, WHAT‘S NEW Below, general changes are listed. These changes affect all modules.
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Slide 1
2012-04-10
GENERAL, WHAT‘S NEW
Below, general changes are listed.These changes affect all modules.
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Slide 2
2012-04-10
General
New modules have been added
Calculation of circlip / Seeger ring
Calculation of clutches
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Slide 3
2012-04-10
General
The progress of a calculation is shownCalculations may be aborted
The total time needed for a calculation is reported
Note that these options need to be activated in the „General settings“
Go back in file to last status
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Slide 4
2012-04-10
General
Header and footer may be changed
Report format / paper size may be changed
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Slide 5
2012-04-10
General
Drag and drop files into the KISSsoft, if you have an opened instance
Search function in database
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Slide 6
2012-04-10
General
Line thickness can be changedSave as dxf: define the size of the resulting dxf graphics for scaling purpose
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Slide 7
2012-04-10
CONNECTIONS, WHAT‘S NEW
Below, the changes concerning connections (shaft-hub connections and others) are listed.
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Slide 8
2012-04-10
Connections
Two new types of shaft hub connections can be calculated along text book methods (Hännchen-Decker).
The transmittable torque for a given configuration or the resulting safety factor can be calculated.
Calculation has been updated compared to previous release
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Slide 9
2012-04-10
Seeger rings
The strength calculation for snap rings (Seeger rings) is added. The calculation works for rings in bores or on shafts under axial load (e.g. to secure a roller bearing on a shaft)
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Slide 10
2012-04-10
Interference fit
The calculation is always based on a shaft and a hub. However, the hub may or may not have an external pressure applied. Said pressre may be due to further hubs mounted.
The arrangement can be defined in a table. First entry is the shaft, second entry is the hub. Additional entries can be added to find the resulting pressure on the hub.
Note that
stress on
outside is
now not
equal to zero
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Slide 11
2012-04-10
Springs
Output of spring data for drawingsDIN2092 and DIN2093 updated
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Slide 12
2012-04-10
Bolts
Results from FEM calculations may be considered.This calculation is based on a – yet to be officially released – modification of
the VDI2230 guideline
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Slide 13
2012-04-10
SHAFTS, WHAT‘S NEW
Below, new functions in the shaft calculation are listed
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Slide 14
2012-04-10
Shafts
Calculation of bearing friction is added for SKF 2004 method (module specific settings)
E-DIN743 (2008) has been added for the strength rating
Stength rating can be switched off (e.g. if only bearing calculation should be run) (Tab „Strength“)
Life of shaft can be calculated (previously, life was given and safety factor would result, now, the calculation also runs in reverse mode)
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Slide 15
2012-04-10
Shafts
Shaft deformation now can consider the load distribution on the shaft deflection
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Slide 16
2012-04-10
Shaft
Reporting for the shaft can be switched on and off to shorten the report
A new option on how to consider how a gear on a shaft stiffens the shaft
The gears are not considered in terms of stiffnes or mass
Gears are not considered in terms of stiffness but in terms of mass (e.g. in case gear is mounted on the shaft with loose interference fit
Shaft diameter is increased to gear pitch diameter, increasing the shaft mass and the shaft stiffness accordingly (e.g. in case of pinion shaft)
Shaft diameter is increased somewhat (new diameter as per ISO6336) to consider stiffening effect in case of e.g. gearwheel mounted on shaft by means of key and interference fit. Gear mass is considered.
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Slide 17
2012-04-10
Shaft
Change the size of support and forces symbols
Lock the position of elements on the shaft
Use right mouse click to save or print the graphics
Use Ctrl+C to copy screen to clipboard
Use right mouse click on bearing to move it to a shoulder
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Slide 18
2012-04-10
Shaft
• For the input of LDD• „Own input“ and direct definition of LDD for each load element in the shaft
editor is now possible. • Select „Own Input“ in „Load spectrum“ and press plus button to define
LDD without use of the database.
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Slide 19
2012-04-10
Shaft (Bearings)
The rolling element profile (corrections) can be shown in the graph „Pressure curve along the rolling body“. Also, the contact stress of a particular rolling element can be shown to assess the effectiveness of a particularcorrection.
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Slide 20
2012-04-10
Shaft (Bearings)
Bearing operating clearance is now calculated also considering the effect of the bearing speed (and housing/shaft fit, housing/shaft roughness, temperatures)
Bearing inner geometry as taken from database or as estimated is now included in the report
Bearing inner geometry for double row cylindrical roller bearings is now considered
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Slide 21
2012-04-10
Shaft (Bearing)
Bearing calculation for oscillating bearings has been added.
From oscillation angle, the no. of possible oscillations is calculated.
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Slide 22
2012-04-10
HELICAL GEARS, WHAT‘S NEW
Below, new features in the core module of KISSsoft, the helical gear calculation, are presented
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Slide 23
2012-04-10
Helical gears (tabs)
The arrangement of the tabs is now more consistent for all helical gear modules (single gear, rack and pinion, gear pair, chains of gears, planetary set). The same principle is also used in bevel/hypoid gears (except that there, there is one more tab on manufacturing).
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Slide 24
2012-04-10
Helical gears (geometry only)
As a default, KISSsoft works with a gear strength rating. If only the geometry calculations should be done, then, untick the selection „Rating“ in the menu „Calculation“. The two tabs „Rating“ and „Factors“ will then disappear
Note that the option „Geometry only“ does no longer exist in the list of the strength rating methods in tab „Rating“
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Slide 25
2012-04-10
Helical gears (rating methods)
The selection of the strength rating method (for root and flank strength) and the selection of the scuffing rating method (for flash and integral criterion) is now located in the tab „Rating“
Note that there are two new calculations, giving an additional tab „Flank breaking“ and an additional dialogue „Measurement grid“
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Slide 26
2012-04-10
Helical gears (tab „Basic data“)
In the tab „Basic data“, the gear main data and the lubrication is defined.
Additional options in „Details“- Input of inner diameter di or material below root as a factor (and inner diameter di is calculated as follows: di=df-2*mn*sR- Input of gear web thickness
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Slide 27
2012-04-10
Helical gears (tab „Reference profile“)
Reference profile can now also be defined in mm instead of factor (mn).Note that if symbol includes „*“, it is as a multiple of module mn whereas if „*“ is missing, then, the dimensions are given in mm
Tip alteration now in reference profile
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Slide 28
2012-04-10
Helical gears (tab „Tolerances“)
No changes
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Slide 29
2012-04-10
Helical gears (tab „Rating“)
In the tab „Rating“, the gear rating and scuffing rating method is selected.Also, the nominal power/torque and speed is defined as well as the reference
gear. The application factor and the required lifetime are to be entered as in previous releases of KISSsoft. However, there are a few new options (for load spectrum, see next slides)
Define the driving gear and the working flank, this information will be used in the tooth contact analysis and KHbeta calculation.
New calculation method
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Slide 30
2012-04-10
Helical gears (tab „Rating“)
DNV41.2 materials have been added
Sinter materials from Häganäs added
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Slide 31
2012-04-10
Helical gears (tab „Rating“ button „Details“)
Input of pre-tension, to define the tensile stress e.g. in a gear rim that is shrink fit onto a gear body (the stress itself may e.g. be calculated using the interference fit calculation
Assume best possible correction for scuffing and micropitting calculation. E.g. for sizing functions and if modifications are not yet defined to obtain more realistic results for high performance gears
Input of hardening depth for flank breaking calculation, see seperate, new calculation method
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Slide 32
2012-04-10
Helical gears (tab „Rating“, load spectra“)
Define whether spectrum is for „Torque“ or „Power“. Select whether spectrum is factors or absolute values.
Import load spectrum from file
„Own input“: define your own load spectrum.
„Single load…“: no load spectrum, only nominal load and KA is considered.
Or select load spectrum from databasoe
If „Consider load spectrum“ is unticked, load spectrum remains in place but the calculation is done for nominal load only.
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Slide 33
2012-04-10
Helical gears (tab „Rating“, load spectra“)
Note that Khbeta, Kgamma and YM (independently for each gear) may be added for each bin in the load spectrum depending on the settings in tab „Factors“*
Note that Kv and KHalpha are calculated for each bin seperately (except if they are entered manually in tab „Factors“)*
Complete load spectrum with user defined K-Factors is listed in report
* see slides below
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Slide 34
2012-04-10
Helical gears (tab „Rating“, load spectra“)
Definition in external file, use header „contents“. Values may be removed by changing the header
Note that negative torque levels are considered on same flank as positive torque levels
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Slide 35
2012-04-10
Helical gears (tab „Factors“, Kv / Khalpha)
If flag is unticked (default), then, the dynamic factor Kv / transverse load factor KHalpha will be calculated along the respective gear rating standard. In case a load spectrum is used, then, Kv / KHalpha iscalculated for each bin seperately.
If the flag is ticked and a value for Kv / KHalpha is entered by the user, then, this value will be used for the calculation. This same value will be used for all bins in the load spectrum.
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Slide 36
2012-04-10
Helical gears (tab „Factors“, Kgamma)
„Own input“: Kgamma is given by the user in the field to the right. This same Kgamma is used for all bins in the load spectrum if a load spectrum is used.
„Own input per load stage“: Kgamma is defined by the user in the load spectrum in tab „Rating“, per bin as shown below
„Calculated according to AGMA 6123“: Kgamma is calculated for each bin in the load spectrum.
Note that Kgamma is reported for each bin in the load spectrum:
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Slide 37
2012-04-10
Helical gears (tab „Factors“, alternating bending
factor)
„Alternating bending factor“ or „Mean stress influence factor“ YM is used to consider a stress ratio different to zero in the tooth root, e.g. in case of reverse bending (back and forth bending of the tooth as e.g. in a planet) or partially reverse bending (frequent changes of torque direction e.g. in robotic application).
„Own input“: Enter YM, it will be used for all bins in the load spectrum„Own input, per load stage“: Enter YM for each bin seperately, in tab „Rating“„Predefined“: default value of 1.00 is used„Calculation….“: define load level and reverse load level for each bin and YM
will be calculated
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Slide 38
2012-04-10
Helical gears (tab „Rating, KHbeta)
KHbeta calculated / entered
for nominal load and used
for all bins in the LDD
KHbeta calculated / entered
seperately
for each bin in the LDD
Manual input of KHbeta
Calculated according to
ISO 6336-2 Method B
Calculated according to
ISO 6336-1, Appendix E
without man.
deviations
Calculated according to
ISO 6336-1, Appendix E
with man. deviations
Case 1
No additional input requied
Case 2
No additional input requied
Case 3
Additional general input
required
Case 4
Additional general input
required
Case 5
Gear misalignement
as input or from shaft files
Case 6
Gear misalignement
as input or from shaft files
Case 7
As Case 5 and
manufacturing deviations
Case 8
As Case 6 and
manufacturing deviations
Direct setting
Indirect
Not possible
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Slide 39
2012-04-10
1. Select „Own input“2. Enter KHbeta in field below3. Run calculation
This KHbeta will be used for all bins in the load spectrum
This approach is recommended if- Experience values are available- Calculated values are e.g. lower than minimum
values stipulated by certification guidelines, customer requirements or design rules
- System information is not available, typically in an early design stage
- For comparative analysis of different gear designs
Helical gears, KHbeta case 1
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Slide 40
2012-04-10
1. Select „Own input per load stage“2. In tab „Rating“, enter KHbeta per
bin in load spectrum3. Run calculation
The KHbeta entered per bin will be used.
This approach is recommended if- Experience values are available- Load dependent KHbeta values
are known from e.g. measurements, design rules or seperate calculations
Helical gears, KHbeta case 2
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Slide 41
2012-04-10
1. Select „Calcualtion according to calculation method“
2. Define system data using lists and „+“ button
3. Run a calculation and KHbeta for nominal load is shown
4. Change to „Own input“5. Run calculation
The previously calculated KHbeta for nominal load will be used for all bins in the spectrum
This approach is recommended if- A simplified KHbeta calculation is
sufficient- System data (shaft geometry) is
known approximately- Case 4 however is preferred
Helical gears, KHbeta case 3
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Slide 42
2012-04-10
1. Select „Calcualtion according to calculation method“
2. Define system data using lists and „+“button
3. Run calculation
KHbeta will be calculated as per the rating
standard for each bin in the load spectrum
seperately and will be shown in the loadSpectrum. These values are also
reported.
This approach is recommended if- A simplified KHbeta calculation is
sufficient- System data (shaft geometry) is
known approximately
Helical gears, KHbeta case 4
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Slide 43
2012-04-10
1. Select „Calculation without
manufacturing…“
2. Enter gear misalignement or select shaft
files
3. Run a calculation and KHbeta for
nominal load is shown
4. Select to „Own input“
5. Run calculation
The previously calculated KHbeta for
nominal load will be used for all bins in
the spectrum
This approach is recommended if
- An accurate KHbeta calculation is
required
- System data (shafts and bearings or gear
misalignement) is known
- Load levels in load spectrum differ
considerably
- Note that case 6 is preferred
Helical gears, KHbeta case 5
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Slide 44
2012-04-10
1. Select „Calculation without
manufacturing…“
2. Enter gear misalignement or select shaft
files
3. Run calculation
The calculated values for each bin are
shown in the load spectrum.
This approach is recommended if
- An accurate KHbeta calculation is
required
- System data (shafts and bearings or gear
misalignement) is known
- Load levels in load spectrum differ
considerably
Helical gears, KHbeta case 6
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Slide 45
2012-04-10
1. Select „Calculation with
manufacturing…“
2. Enter gear misalignement or select shaft
files
3. Enter manufacturing deviations
4. Run a calculation and KHbeta for
nominal load is shown
5. Select to „Own input“
6. Run calculation
The previously calculated KHbeta for
nominal load will be used for all bins in
the spectrum
This approach is recommended if
- See above
Helical gears, KHbeta case 7
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Slide 46
2012-04-10
1. Select „Calculation with
manufacturing…“
2. Enter gear misalignement or select shaft
files
3. Enter manufacturing deviations
4. Run calculation
The KHbeta values calculated for each bin
are shown in the load spectrum
This approach is recommended if
- See above
Helical gears, KHbeta case 8
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Slide 47
2012-04-10
Helical gears, KHbeta, shaft misalignement
In case that KHbeta is calculated according to ISO6336-1 Appendix E, then, the misalignement of the gear axis and the torsional wind up of the gears is considered in the calculations and needs to be defined accordingly. In principle, there are three methods to define the gear misalignement and the torsional wind up
Data (gear misalignement and torsional wind up) is calculated using KISSsoft shaft calculation, considering shaft bending and torsion, bearing deformation, bearing misalignement and housing deformation
Data (gear misalignement and torsional wind up) is entered directly by the user
Gear misalignement is calculated using KISSsoft shaft calculation, torsional wind up is entered directly by the user
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Slide 48
2012-04-10
Helical gears (tab „Contact analysis“)
The axis alignement (see above for KHbeta ) is also available here
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Slide 49
2012-04-10
Helical gears (tab „Contact analysis“)
There are some new graphics and features in the graphics
Color bar improvedColor resolution improvedSettings addedAxis can be scaled
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Slide 50
2012-04-10
Helical gears (tab „Contact analysis“)
Stress concentration effect effect in case that gear and pinion do not have the same face width is now considered. Also, offset in the gears is considered!
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Slide 51
2012-04-10
Helical gears (tab „Contact analysis“)
Buttressing effect is now more accurate
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Slide 52
2012-04-10
Helical gears (tab „Contact analysis“)
Walk through in 2D sections
Scale 3D graphics in all axis
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Slide 53
2012-04-10
Helical gears (tab „Contact analysis“)
Contact lines can be shown
Single tooth contact and mesh stiffness is shown
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Slide 54
2012-04-10
Helical gears (tab „Contact analysis“)
Contact lines can be shown
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Slide 55
2012-04-10
Helical gears (tab „Modifications“)
The diameter where the corrections in profile directin start are given as „Information“
Topological modifications are now possible
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Slide 56
2012-04-10
Helical gears (tab „Modifications“)
Topological modifications are defined in a *.dat file
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Slide 57
2012-04-10
Helical gears (rough sizing)
In the rough sizing, the major change isLoad data to be given in tab „Rating“Settings for factors may be given in tab „Factors“Reference profile can be selectedNote that load spectrum is not considered
Enter either desired helix angle or desired overlap contact ratio
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Slide 58
2012-04-10
Helical gears (rough sizing)
In the results, there is now a search function. Press „Ctrl+F“ to activate the search functionEnter a numberOnly those solutions having this number (in any of the rows) will show
Enter search value
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Slide 59
2012-04-10
Helical gears (fine sizing)
In the fine sizing, the major change isThe user can choose whether the load spectrum is considered in the fine
sizing or notProfile shift and face width may be pre-defined
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Slide 60
2012-04-10
Helical gears (fine sizing)
For comparison, the current gear data can be shown as solution No. 0If selected, solutions are calculated using load spectrumNew option for sizing of profile shift
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Slide 61
2012-04-10
Helical gears (calculation „Measurement
grid“)
Based on the true flank geometry, considering all corrections, a measurement grid for the coordinate measurement machine may be generated along Gleason or Klingelnberg measurement machine format.
Note that all gear corrections are considered!
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Slide 62
2012-04-10
Helical gears (calculation „Flank
breakage“)
Right curve: recommended hardness for fatigue, according DNV41.2Points: hardness at different depth, as defined aboveResults: safety for hardened layer
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Slide 63
2012-04-10
Helical gears (calculation „Flank
breakage“)
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Slide 64
2012-04-10
Helical gears (additional graphics)
Two new graphics in 2D geometryRadius of curvature of flank, including corrections (note transitions)Angle of the flank normal, considering corrections (note transitions)
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Slide 65
2012-04-10
Helical gears (tab „Tooth form“)
Pre-machining, final machining and modifications as defined in „Reference profile“ and „Modifications“ are now seperate steps in the tooth form calculation.This can be used to define 3D geometry in certain steps of the manufacturing by using right mouse click and „choose as result“
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Slide 66
2012-04-10
Helical gears (graphics on corrections“
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Slide 67
2012-04-10
BEVEL GEARS WHAT‘S NEW
The bevel gear calcultaion has been much improved in terms of usability, accuracy and 3D modeling
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Slide 68
2012-04-10
Bevel gears (tab „Rating“)
New version of ISO10300
New: DNV41.2
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Slide 69
2012-04-10
Bevel gears (3D model)
Settings for type of graphics now in „Module specific settings“Single tooth or gap can be exported to save file size
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Slide 70
2012-04-10
Bevel gears (tab „Reference profile“)
Root radius of bevel gear can be constant or variable (with the changing module over face width)
Protuberance can also be constant or variable (with the changing module over facewidth)
New: bevel gears can have protuberance
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Slide 71
2012-04-10
Bevel gears (details of geometry)
Chamfers may be added on all sides now:
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Slide 72
2012-04-10
Bevel gears (measurement grid)
Measurement grid for Klingelnberg or Gleason type machineNote that the middle of the grind points is in the middle of the tooth, on the
pitch cone :
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Slide 73
2012-04-10
Bevel gears (measurement grid)
The reference position is in middle of toothThe angle needed to move the grind onto the flank is shown on top
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Slide 74
2012-04-10
Bevel gears (mounting)
Gear and pinion may be moved with respect to each other, e.g. to see the influcence of a mounting error on the contact pattern
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Slide 75
2012-04-10
Bevel gears (fine sizing)
A fine sizing function has been added:
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Slide 77
2012-04-10
Worm and crossed axis helical
Rouhg sizing of crossed axis helical gears
All flank geometries in 3D
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Slide 78
2012-04-10
KISSSYS: WHAT‘S NEW
In KISSsys, wizards and tool boxes have been added and programming and handling of user interfaces has been improved.
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Slide 82
2012-04-10
Preliminary sizing to get some
gear data during system
modelling
KISSsys
