Title: Mechanical characteristics analysis of cantilever hydraulic steel pipe structure in construction machinery under low-speed impact

Authors: Jibin Guo; Haiyang Yuan; Peng Li

Addresses: Department of Mechanical and Electronic Engineering, Hunan College of Information, Changsha, 410200, China ' State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, 310027, China; School of Engineering, Lishui University, Lishui, 323000, China ' Longquan City Industrial Innovation Service Centre, Longquan, 610100, China

Abstract: The purpose of this study is to analyse the mechanical properties of cantilever hydraulic steel pipe structure of construction machinery under low-speed impact. The impact test and mechanical characteristics analysis were carried out by using a drop hammer test machine with a maximum impact energy of 300 J. After analysing the load of the hydraulic steel pipe, it can be judged that the maximum load and maximum stress will appear at the A end of the steel pipe. Therefore, the composite stress at points 1 to 4 in Figure 4 can be calculated to analyse the mechanical properties of the steel pipe structure. The experimental results show that, compared with the existing methods, the stress analysis accuracy of the proposed method is significantly improved, which is always maintained at more than 90%, and the response time of the proposed method is also significantly reduced.

Keywords: low-speed impact; construction machinery cantilever; hydraulic steel pipe; mechanical properties.

DOI: 10.1504/IJMIC.2024.144034

International Journal of Modelling, Identification and Control, 2024 Vol.45 No.4, pp.245 - 251

Received: 30 Apr 2024
Accepted: 22 Aug 2024
Published online: 21 Jan 2025 *

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