A Universal Wire Testing Machine for Enhancing the Performance of Wire-Driven Robots

Fuente: arXiv
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Main Authors: Suzuki, Temma, Kawaharazuka, Kento, Okada, Kei
Format: Preprint
Published: 2025
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author Suzuki, Temma
Kawaharazuka, Kento
Okada, Kei
author_facet Suzuki, Temma
Kawaharazuka, Kento
Okada, Kei
contents Compared with gears and linkages, wires constitute a lightweight, low-friction transmission mechanism. However, because wires are flexible materials, they tend to introduce large modeling errors, and their adoption in industrial and research robots remains limited.In this study, we built a Universal Wire Testing Machine that enables measurement and adjustment of wire characteristics to improve the performance of wire-driven mechanisms. Using this testing machine, we carried out removal of initial wire stretch, measurement of tension transmission efficiency for eight different diameters of passive pulleys, and measurement of the dynamic behavior of variable-length wires. Finally, we applied the data obtained from this testing machine to the force control of an actual wire-driven robot, reducing the end-effector force error.
format Preprint
id arxiv_https___arxiv_org_abs_2509_10862
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Universal Wire Testing Machine for Enhancing the Performance of Wire-Driven Robots
Suzuki, Temma
Kawaharazuka, Kento
Okada, Kei
Robotics
Compared with gears and linkages, wires constitute a lightweight, low-friction transmission mechanism. However, because wires are flexible materials, they tend to introduce large modeling errors, and their adoption in industrial and research robots remains limited.In this study, we built a Universal Wire Testing Machine that enables measurement and adjustment of wire characteristics to improve the performance of wire-driven mechanisms. Using this testing machine, we carried out removal of initial wire stretch, measurement of tension transmission efficiency for eight different diameters of passive pulleys, and measurement of the dynamic behavior of variable-length wires. Finally, we applied the data obtained from this testing machine to the force control of an actual wire-driven robot, reducing the end-effector force error.
title A Universal Wire Testing Machine for Enhancing the Performance of Wire-Driven Robots
topic Robotics
url https://arxiv.org/abs/2509.10862