텔레스코픽 붐의 두께에 따른 고소작업차의 구조 건전성 평가
Evaluation of Structural Integrity of Aerial Work Vehicle by the Thickness of the Telescopic Boom
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The rapid urbanization and industrial growth have increased the demand in construction, maintenance, and infrastructure, leading to significant advancements in aerial work vehicle technology. This study focuses on the structural performance of ultra-high-strength steel plates of varying thicknesses used in telescopic booms, which is a critical component of aerial work vehicles. This study aims to address the cost issues associated with the previously used 5mm thick plates by evaluating the structural integrity of thinner plates. Using finite element analysis (FEA), the study analyzes stress and displacement for different thicknesses, specifically targeting the first boom segment, which bears the most load. The results indicate that while 3mm and 3.2mm thick plates are unsuitable due to buckling, the 4mm thick plate meets safety criteria with a safety factor of 2.51 and reduces costs by over 20%. By using 4mm thick ultra-high-strength steel for the first boom segment is cost-effective, providing structural integrity and an applicable solution for aerial work vehicle manufacturers.
Abstract
The rapid urbanization and industrial growth have increased the demand in construction, maintenance, and infrastructure, leading to significant advancements in aerial work vehicle technology. This study focuses on the structural performance of ultra-high-strength steel plates of varying thicknesses used in telescopic booms, which is a critical component of aerial work vehicles. This study aims to address the cost issues associated with the previously used 5mm thick plates by evaluating the structural integrity of thinner plates. Using finite element analysis (FEA), the study analyzes stress and displacement for different thicknesses, specifically targeting the first boom segment, which bears the most load. The results indicate that while 3mm and 3.2mm thick plates are unsuitable due to buckling, the 4mm thick plate meets safety criteria with a safety factor of 2.51 and reduces costs by over 20%. By using 4mm thick ultra-high-strength steel for the first boom segment is cost-effective, providing structural integrity and an applicable solution for aerial work vehicle manufacturers.
참고문헌 (6)
- Jai Hak Lee, "Optimal design of boom for telescopic boom type forklift truck", Journal of the Korean Society for Precision Engineering, 37(6), pp.457~464 (2020)
- Panganiban, "Multi-phase Design Optimization of a Long Range Aerial Lift Boom Structure", World Congress on Engineering, pp.1697~1700 (2012)
- Deng, Ming, "Lateral vibration behaviors of the straight boom of the aerial work platform in the horizontal linear motion", Automation in Construction, 134, pp.104095~ (2022)
- Pavlovic, Ana, "Buckling analysis of telescopic boom: theoretical and numerical verification of sliding pads", Tehnički vjesnik, 24(3), pp.729~735 (2017)
- Dervishi, Idlir, "Calculation of telescopic-boom bending stress capacity using fem software, in support of project logistics decisions", Industry, 4(8), pp.401~405 (2023)
- Jung Min Hong, "Optimal design of boom joint for 2.5 ton class aerial lift truck", Journal of the Korean Society for Precision Engineering, 35(8), pp.769~775 (2018)