Symbol

Condition

Default

Units

Description

ID






Defines whether the component is:
true  ideal or
false  nonideal

ideal

data source


GUI



Defines the source for the loss data:
•

by an attachment [attachment]

•

by an external file [file]


datasourcemode



true



Defines whether one efficiency data table is used for all meshing loss calculations [] or the efficiency of each meshing gear pair is given by a separate data table [].

SameMeshingEfficiency






Planet1/Sun Gear ratio

ratio1





Ring/Planet2 Gear ratio

ratio2





Number of planet gear pairs.
A planet pair consists of a set of Planet1 and Planet2 gears

numberofPlanets


same loss data = true
data source = GUI



Defines all velocity dependant meshing efficiencies.
The columns:
[ ( ( ) ( )]
Five options are available:
•

1 by 1 array: entered value is taken as the constant efficiency for forward and backward cases

( ) = ( ) =
•

1 by 2 array: first entered value is taken as the constant efficiency for forward case and the second for backward cases

( )= ( ) =
•

1 by 3 array: first column is ignored and the second and third values are taken as constant efficiencies for forward and backward cases, respectively

•

n by 2 array: 2nd column is forward and backward efficiency

() = ( ) = ( )
2nd column is forward efficiency
()
3rd column is backward efficiency
( )

meshinglossTable3

same loss data = true
data source = attachment



Defines velocity dependant meshing efficiency
First column is angular velocity ()
(See below)

data3

same loss data = true
data source = file



fileName3


same loss data = true
data source = attachment or file




Defines the corresponding data columns used for forward efficiency () and backward efficiency ( )
Two options are available:
Data column corresponding to the column number is used for both forward and backward efficiency (
Data column corresponding to the first column number is used for forward efficiency (
and data column corresponding to the second column number is used for backward efficiency (

columns3


same loss data = false
data source = GUI



Defines Ring/Planet2 velocity dependant meshing efficiency as a function of .
The columns are:
[ ( ) ( )]
First column is angular velocity of the ring gear w.r.t. the carrier ()
Five options are available:
•

1 by 1 array: entered value is taken as the constant efficiency for forward and backward cases

( ) = =
•

1 by 2 array: first entered value is taken as the constant efficiency for forward case and the second for backward cases

( ) =( ) =
•

1 by 3 array: first column is ignored and the second and third values are taken as constant efficiencies for forward and backward cases, respectively.

•

n by 2 array: Second column is forward and backward efficiency

( ) = ( ) = ( )
Second column is forward efficiency
( )
Third column is backward efficiency
( )

meshinglossTable1

same loss data = false
data source = attachment



Defines the velocity dependent meshing efficiency
First column is angular velocity ( )
(See below)

data1

same loss data = false
data source = file



fileName1


same loss data = false
data source = attachment or file




Defines the corresponding data columns used for forward efficiency () and backward efficiency ()
Two options are available:
Data column corresponding to the column number is used for both forward and backward efficiency (
Data column corresponding to the first column number is used for forward efficiency () and Data column corresponding to the second column number is used for backward efficiency ()

columns1


same loss data = false
data source = GUI



Defines Planet1/Sun velocity dependant meshing efficiency as a function of .
The columns are:
[ (( ) ( )]
First column is angular velocity of the sun gear w.r.t. carrier ()
Five options are available:
•

1 by 1 array: entered value is taken as the constant efficiency for forward and backward cases

( ) = =
•

1 by 2 array: first entered value is taken as the constant efficiency for forward case and the second for backward cases

( ) =( ) =
•

1 by 3 array: first column is ignored and the second and third values are taken as constant efficiencies for forward and backward cases, respectively

•

n by 2 array: Second column is forward and backward efficiency

( ) = ( ) = ( )
Second column is forward efficiency
( )
Third column is backward efficiency
( )

meshinglossTable2

same loss data = false
data source = attachment



Defines the velocity dependent meshing efficiency
First column is angular velocity ( )
(See below)

data2

same loss data = false
data source = file



fileName2


same loss data = false
data source = attachment or file




Defines the corresponding data columns used for forward () and backward () efficiency
Two options are available:
Data column corresponding to the column number is used for both forward and backward efficiency (
Data column corresponding to the first column number is used for forward efficiency () and
Data column corresponding to the second column number is used for backward efficiency ()

columns2

d


0


Linear damping in planets/carrier bearings

d

smoothness


Table points are linearly interpolated



Defines the smoothness of table interpolation
There are two options:
•

Table points are linearly interpolated

•

Table points are interpolated such that the first derivative is continuous


smoothness
