Properties and Applications of the Electrohydraulic Servosystem of the Hydraulic Excavator

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...

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Bibliographic Details
Date:2018
Main Authors: Jia, W.H., Yin, C.B., Li, G., Sun, C.L., Wang, C., Feng, H.
Format: Article
Language:English
Published: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2018
Series:Проблемы прочности
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Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/173823
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Properties and Applications of the Electrohydraulic Servosystem of the Hydraulic Excavator / W.H. Jia, C.B. Yin, G. Li, C.L. Sun, C. Wang, H. Feng // Проблемы прочности. — 2018. — № 1. — С. 144-150. — Бібліогр.: 11 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary: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.