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Axis definition of line joint

Figure 01 - Axis definition of line joint

 Alignment line joints

Figure 02 - Alignment line joints
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FAQ 002815 EN 8 April 2019

Markus Baumgärtel Results RFEM

According to which coordinate system are line joints aligned?

Answer

Axial / transverse joint or spring

The degrees of freedom are based on the following definition of the axis system: The axis x points in the direction of the line;
the axis y represents the tangent to the surface plane, the axis z the normal to the surface.

The text boxes and table columns control the degrees of freedom for axial and shear forces. Is a
Checkbox, this means that the shift in this direction is possible and
thus the power is not transferred. It can also be entered the constant of a Wegfeder
become.

Torque joint or spring

The degrees of freedom of the moments are related to the local joint coordinate system (axis
x in the direction of the line, axis y as tangent and axis z as normal to the surface plane). On
Check mark means that the twist is free and the cut size is not transferred. Es
You can also enter the constant of a torsion spring.

There is already an interesting technical article on the subject of line joints on our website .

Keywords

Line joint Axis line joint Coordinate system line joint

Reference

[1]   Manual RFEM. (2016). Tiefenbach: Dlubal Software.

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