Properties and Applications of the Electrohydraulic Servosystem of the Hydraulic Excavator
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The service of a hydraulic excavator is complicated by poor environment. The safety and stability of the control system are influenced by external factors. The object of the study is the electrohydraulic servosystem of the hydraulic excavator. The mathematical and simulation models using AMESIM for the servosystem are constructed. Then the pressure and flow characteristics are analyzed. The design and optimization of the electrohydraulic servosystem and its application in excavator engineering are described. The operation process is graphically presented by a curve, which steeply slopes up (rising period) and then flattens out (stabilization period), those periods are shortened by 38.0 and 40.5%, respectively, the delay tracking period decreased by 52.6%, and anti-interference is reliable.
Keywordselectrohydraulic system delay tracking period anti-interference safety and stability
- 1.C. Liu, Z. Tang, X. Zhao, and Z. Pey, “The modeling and simulation study of hydraulic intelligent power system based on AMESim,” in: Proc. of the Guidance, Navigation and Control Conference (CGNCC), 2014 IEEE Chinese (August 8–10, 2014, Yantai, China), IEEE (2014), DOI: https://doi.org/10.1109/CGNCC.2014.7007419.
- 5.W. Jia, C. Yin, B. Jia, et al., “Application research on the dual-spool valve control system in a hydraulic farm-oriented load tractor,” INMATEH – Agricult. Eng., 48, No. 1, 103–112 (2016).Google Scholar
- 7.L. L. Li, L. Q. Huo, Q. Zhang, and B. Sun, “Design and simulation analysis of servo amplifier,” Process Automat. Instr., 33, No. 12, 83–85 (2012).Google Scholar
- 9.M. H. Chiang, L. W. Lee, and H. H. Liu, “Adaptive fuzzy controller with self-tuning fuzzy sliding-mode compensation for position control of an electrohydraulic displacement-controlled system,” J. Intell. Fuzzy Syst., 26, No. 2, 815–830 (2014).Google Scholar