English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Helical torsion springs with tangential legs are used for many applications:from simple everyday use systems, like clothes peg, to advanced systems, assectional doors. Torsion springs are usually exploited with an inner rod as aguide. The required space between the spring and the rod make the springtilted. Unfortunately, as far as we are aware, no industrial software is ableto determine the initial system angle made by the spring in its tiltedposition. All the torque/angle curves are presented with relative angles. Itmeans that whatever the number of coils considered, the angle is null when thetorque is null. For that reason, we have developed a methodology using bothCATIA and ABAQUS to determine the system angle at the beginning of thebehavior. The model exploits wires designed with CATIA and imported in ABAQUSfor the center rod, the torsion spring and the rods of the system to apply thetorque. Several options to model contact between the several parts have beeninvestigated. They mostly use connector with an axial property and a stopcriterion. The obtained results are very interesting and enable to plan furtherstudies.

Investigation on the Initial System Angle of a Torsion Springs using Cad