Design and Finite Element Analysis of a 9.3-Meter Telescopic Ladder for Industrial Use

Abstract

This study was conducted to design and analyse a telescopic ladder for industrial use, focusing on structural strength, user safety, and compliance with international standards such as EN 131 and OSHA This study takes telescopic ladders as its core R&D target. This equipment has become a common tool for high-altitude work in both civilian and industrial settings, due to its core advantages of small storage footprint and easy portability for relocation between work sites. However, traditional mass-produced telescopic ladders have four widespread defects: excessive deflection when carrying loads during operation, material fatigue risk after long-term high-frequency use, insufficient work stability under complex working conditions, and the locking mechanism failing to meet optimal safety standards. To solve these pain points, this study uses SolidWorks to complete 3D modeling, combines the finite element analysis (FEA) method, takes three core indicators stress distribution, deformation level, and safety factor under standard operating loads as evaluation bases, selects 6061-T6 aluminum alloy, which fits industrial requirements of high strength, toughness and light weight, as the main material, and carries out design optimization across four dimensions: pipe wall thickness, component geometric shape, connection method between ladder sections, and the effectiveness of the locking mechanism. Verification confirms that the optimized telescopic ladder fully meets the safety requirements for standard loads, while retaining the lightweight property that makes it easy for users to carry and operate. The research findings can not only support the upgrading and development of industrial telescopic ladders, but also provide practical solutions for follow-up related research on high-altitude operation equipment.