This article was translated by Google Translator View original text


FAQ 004133 EN

10 October 2019

Thomas Günthel Modeling | Structure RFEM RSTAB RF-COM RS-COM

How is friction set on a member end release via the COM interface?


Friction represents a nonlinearity and can therefore only be modified via the interface to the member end release hinge.

For this purpose, the member end release must be created first, if not already available. Then, the IMemberHinge interface is brought to the member end release and then to the nonlinearity (here IFriction ). Then , you can use the methods GetData and SetData to modify the data (here Friction ):

Sub SetMemberHingeFriction ()

Dim model As RFEM5.model
Set model = GetObject (, "RFEM5.Model")

On Error GoTo e

Dim data As IModelData
Set data = model.GetModelData

Dim hinge (0 To 0) As RFEM5.MemberHinge

hinge (0) .No = 1
hinge (0) .RotationalConstantX = 1
hinge (0) .RotationalConstantY = 2
hinge (0) .RotationalConstantZ = 3
hinge (0) .TranslationalConstantX = 4
hinge (0) .TranslationalConstantY = 5
hinge (0) .TranslationalConstantZ = 6
hinge (0) .Comment = "Member Hinge 1"
hinge (0) .TranslationalNonlinearityX = FrictionAType

data.SetMemberHinges hing
'get interface for member'
Dim imemhing As IMemberHinge
Set imemhing = data.GetMemberHinge (1, AtNo)
'get interface for nonlinearity'
Dim iFric As IFriction
Set iFric = imemhing.GetNonlinearity (AlongAxisX)
'get friction data'
Dim fric As Friction
fric = iFric.GetData
fric.Coefficient1 = 0.3
'set friction data
iFric.SetData fric
e: If Err.Number <> 0 Then MsgBox Err.Description,, Err.Source

Set data = Nothing
Set model = Nothing

End Sub

For Coefficient Vy + Vz, Coeffcient2 is used to set the second coefficient. The translational spring in the Friction dialog box is controlled by the translational spring of the Member-End Hinge. In the concrete case, this is TranslationalConstantX for the x-direction (see Figure 01).


COM Friction Nonlinearity GetData SetData


Contact us

Contact to Dlubal

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

+49 9673 9203 0

RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RFEM Other
RF-COM 5.xx

Add-on Module

Programmable interface (API) based on the COM technology

Price of First License
580.00 USD
RS-COM 8.xx

Add-on Module

Programmable interface (API) based on the COM technology

Price of First License
580.00 USD