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Research paper

Design and Experimental Validation of a 3D Printed Torsional Series Elastic Actuator for Safe Human Robot Interaction

A low-stiffness TPU torsional spring provides mechanical compliance, paired with torque-threshold switching in a position controller. Finite-element and bench experiments examine deformation and disturbance response. Material variability, ageing and application contact loads remain relevant before treating the design as a protective measure.

Reviewed 2026-11-05 · Source and bibliography checked

Bibliographic details and the editorial overview were checked against the original source. Access conditions and editions are identified with the source.
Original title
Design and Experimental Validation of a 3D Printed Torsional Series Elastic Actuator for Safe Human Robot Interaction
Publisher
arXiv
Authors
Pisco, Joel Hidalgo, Condo, Melissa Cobos, Miranda, Luigi, Paillacho, Dennys
DOI
10.48550/arxiv.2609.19367
First archive posting
2026-09-16
Source language
en
Source country
US
Edition
v1
Access
Open archive metadata and manuscript
Publication status
Preprint

Related resources and engineering notes

Source overview

A low-stiffness TPU torsional spring provides mechanical compliance, paired with torque-threshold switching in a position controller. Finite-element and bench experiments examine deformation and disturbance response. Material variability, ageing and application contact loads remain relevant before treating the design as a protective measure.

Use and review

Original summary of the primary archive abstract and bibliographic record. Specialist technical and native-language review remain pending. The reported method does not establish a deployed safety function or achieved PL.

Sources & editions

Design and Experimental Validation of a 3D Printed Torsional Series Elastic Actuator for Safe Human Robot Interaction ↗

arXiv · v1

arXiv abstract, authors, submission history and DOI links; first posting 2026-09-16, abstract reviewed in v1. Publisher dates are separate.