Modeling Spring Using Trajectories

Tips & Tricks

In RFEM, you can create screw lines using the line of type “Trajectory”. For this, you need a center line / guide line about which the line can be modeled, as well as a start and end point. Then, you can create a line of type Trajectory between the start and end point, which initially appears as a straight line.

In the “Edit Line” dialog box (available when you double‑click the line, for example), there is a new “Trajectory” tab, which includes the settings of the special type. In this tab, you can select a guide line and a rotation angle about the guide line. Finally, assign the created helix to a member in order to complete the model of a spring.


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  • Updated 29 October 2020

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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

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