Abstract
In view of the transverse crack of the longitudinal beam near the upper bracket of the front axle shock absorber of a dump truck frame, the improvement scheme is proposed. According to the actual road conditions of the dump truck, the strain test of the longitudinal beam, the displacement test of the shock absorber and the strain test of the piston rod of the shock absorber before and after improvement are completed. The calibration of the force of the piston rod of the shock absorber is completed in the bench test. The load spectrum of the frame fatigue simulation analysis is obtained by using the strain test results of the piston rod of the shock absorber. A section of frame model is intercepted, the finite element model of frame is established by shell element, and the finite element stress analysis of frame is carried out with HyperMesh software. At the same time, according to the time series load excitation spectrum and the fatigue characteristic parameters of frame material, the fatigue life of frame before and after improvement is obtained by using FEMFAT software. The results of the cloud chart of the frame fatigue life show that the position of the frame easily damaged before improvement is consistent with the actual position of the crack, and the fatigue life of the frame after improvement is significantly improved compared with that before improvement, which verifies the correctness of the fatigue life analysis method, and provides a reference for the fatigue life prediction and structural improvement of the frame.
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References
Yang Q, Gu Z, Mi C, Tao J, Liang X, Peng G (2012) An analysis on the fatigue life of frame in SF33900 mining dump truck. Automot Eng 34(220) (11):1015–1019
Li C, Han Z, Huo J, Song S (2013) Fatigue life analysis of semi-trailer frame based on FEM. J Eng Des 20(05):414–418+426
Huang Y, Dong G, Zhong M, Li Z, Wang J (2017) Vehicle fatigue performance design based on dynamic road load spectra measured. Automot Eng 39(280) (11):1281–1285+1293
Yao W (2004) Structural fatigue life analysis. National Defense Industry Press, Beijing
Gao H (2016) Fatigue analysis and optimization of a heavy truck frame. Beijing University of Technology
Li G, Yang Z, Shen C, Jia J, Wang L (2018) Study on fatigue of lock bracket on measured load spectrum. In: Proceedings of 2018 annual meeting of Chinese society of automotive engineers. China Society of Automotive Engineers, p 4
Sun Y, Zeng F (2016) Study on simulation of commercial vehicle frame fatigue life. J Chongqing Univ Technol (Nat Sci) 30(02):29–36
Zhang W (2016) Simulation and research on fatigue durability of a heavy truck rearview mirror bracket based on FEMFAT. In: Proceedings of the 12th China CAE engineering analysis technology annual meeting. China Mechanical Industry Automation Branch of Mechanical Engineering Society, Industry University Research Working Committee of China Mechanical Society, High Performance Computing Professional Committee of Chinese Computer Society, Shanxi National Defense Science and Technology Industry Informatization Association. Industry University Research Working Committee of China Mechanical Society, pp 83–85
Lotsberg I, Wastberg S, Ulle H (2010) Fatigue testing and S-N data for fatigue analysis of piles. J Offshore Mech Arctic Eng 132:1–7
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Wang, J., Liu, J., Sun, Y., Shan, L., Li, J., Yu, N. (2022). Fatigue Life Analysis of Frame Based on Measured Load Spectrum. In: Proceedings of China SAE Congress 2020: Selected Papers. Lecture Notes in Electrical Engineering, vol 769. Springer, Singapore. https://doi.org/10.1007/978-981-16-2090-4_42
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DOI: https://doi.org/10.1007/978-981-16-2090-4_42
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