WCA September 2016

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108 Wire & Cable ASIA –September/October 2016
By using the CAE structural software ANSYS Workbench®,
that is directly linked with RecurDyn®, MFL performs
the simulation of the mechanical behaviour of the most
important parts of the planetary machine.
The goal is to verify that all parts meet the strength and
deformability specifications.
On a planetary machine, all parts are under fatigue
(Figure 8 shows the load on the main frame of a cradle
during a rotation around its axle); so that the engineers use
specific methods for the verification of welded structure
under fatigue as hot spot, Radaj methods and so on.
Figure 9 shows deformation and equivalent Von Mises
stress on a cradle in two positions.
Finally, a check of the eigen-frequencies of all parts of the
machine was done to avoid any risk of resonance.
Conclusion
Thanks to EnginSoft’s expertise in dynamic simulation it
was possible to obtain an accurate simulation of a huge
planetary stranding machine in a short time.
The results of these simulations support Mario Frigerio’s
mechanical designers for the dimensioning of the machine.
On this large machine no mistake is acceptable.
Virtualisation allows saving time in the development
process and is an alternative to the classical approach, in
particular when historical data, from similar applications, is
not available.
This collaboration between companies made it possible
to optimise the design of this challenging project and
preserve the high quality level and performance of Mario
Frigerio’s products.
This article contains references to the following products,
which are trademarks or registered trademarks of their
respective owners: ANSYS Workbench; RecurDyn.
Mario Frigerio SpA
Via Lombardia snc, I-23847 Molteno (LC)
Tel : +39 031 548 8100
Email:
Website :
EnginSoft SpA
Via della Stazione 27, Mattarello, Trento, Italy
Tel : +39 035 368 780
Email:
Website: