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Mechanism analysis of pressure fluctuation in wheel loader articulated steering hydraulic system

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Abstract

This paper studies the influence of hinge point positioning of a steering cylinder on the pressure fluctuation of the steering system of a wheel loader. Affected by the hinge point position of the steering cylinder, the main causes of the pressure fluctuation are found to be the stroke difference and the force arm difference. Based on theoretical analysis, the hinge point positioning of the steering cylinder was optimized by using genetic algorithm (GA). The AME-sim simulation model of the steering system was built to verify the accuracy of the GA. The wheel loader was reformed according to the optimized articulated points position. Steering tests showed a significant drop in system pressure fluctuation, the energy consumed is also reduced. Further, the analysis shows that the force arm difference is the main factor causing the pressure fluctuation, providing the theoretical and experimental basis for the design of a steering system of wheel loaders.

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Acknowledgments

This research was funded by The National Key Research and Development Program of China under Grant No. 2016YFC0802904.

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Authors and Affiliations

  1. School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130022, China

    Bing-wei Cao, Xin-hui Liu, Wei Chen, Chen Zhou & Fei-xiang Xu

Authors
  1. Bing-wei Cao
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  2. Xin-hui Liu
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  3. Wei Chen
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  4. Chen Zhou
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  5. Fei-xiang Xu
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Corresponding author

Correspondence to Wei Chen.

Additional information

Bingwei Cao is currently studying for a doctoral degree. He obtained a Master’s degree from Shandong University of Technology, Zibo, China, in 2016. His current research interests include machine learning, image recognition and hydraulics.

Wei Chen received the Ph.D. in Mechatronic Engineering from Jilin University, Jilin, China, in 2009. He is an Associate Professor at the School of Mechanical and Aerospace Engineering at Jilin University. His research interests include mechanical and electrical engineering, hydraulic and fluid transmission control.

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Cao, Bw., Liu, Xh., Chen, W. et al. Mechanism analysis of pressure fluctuation in wheel loader articulated steering hydraulic system. J Mech Sci Technol 34, 4137–4147 (2020). https://doi.org/10.1007/s12206-020-0906-9

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  • DOI: https://doi.org/10.1007/s12206-020-0906-9

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