Year: 2025
Type: article
Abstract: In recent years, population decline in developed countries has led to labor shortages, increasing the demand for industrial robots. However, their complex movements and repetitive use contribute to high failure rates in critical components, particularly conductive cables in robot arms. Ensuring cable quality is essential for improving reliability and performance. Since cables have various design parameters, relying solely on physical experiments increases time and costs. To address this, this study focuses on numerical analysis before experimental validation. A beam element model considering strand twisting was developed using Python, and bending loads were applied. The numerical results revealed that tensile and compressive stress varies depending on the strand position. In the outer strand, tensile and compressive stresses were mixed in the central and outer wires, resembling beam bending behavior. In the central strand, the deformation was constrained by twisting, forming a compressive stress field dominated by the minimum principal stress. These findings highlight the mechanical characteristics of cable strands under bending loads, contributing to the optimization of cable designs for industrial robots.
Source: Journal of Textile Engineering
DOI: 10.4188/jte.250405a
Authors: Kodai TANIGUCHI, Keitaro MIZUTA, Tetsusei KURASHIKI, Kazutaka MUKOYAMA, Yusuke KOSHITA
Institution: The University of Osaka
Language: English
Topic: Engineering Applied Research
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413235892