Journal
APPLIED SCIENCES-BASEL
Volume 10, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/app10155220
Keywords
ride comfort; hydraulic shock; hydraulic suspension; accumulator; combined simulation
Categories
Funding
- National Key Research and Development Program of China [2019YFB2005204]
- National Natural Science Foundation of China [51675461, 11673040]
- Key Research and Development Program of Hebei Province [19273708D]
- Scientific Research Project Foundation of Anhui Education Department [KJ2019A1161]
- Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems [GZKF-201922]
- Open Project Program of Tianjin Key Laboratory of Aerospace Intelligent Equipment Technology, Tianjin Institute of Aerospace Mechanical and Electrical Equipment
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Featured Application Adding an accumulator in a suspension system can effectively reduce the hydraulic impact caused by an uneven road, and the appropriate accumulator parameters can be obtained through combined simulation. In order to ensure the ride comfort of a hydraulic transport vehicle in transportation, it is important to account for the effects of the suspension system. In this paper, an improved hydraulic suspension system based on a reasonable setting of the accumulator was proposed for a heavy hydraulic transport vehicle. The hydraulic transport vehicle was a multi-degree nonlinear system, and the establishment of an appropriate vehicle dynamical model was the basis for the improvement of the hydraulic suspension system. The hydraulic suspension system was analyzed, and a mathematical model of the hydraulic suspension system with accumulator established and then analyzed. The results revealed that installing the appropriate accumulator can absorb the impact pressure on the vehicle, while a hydraulic suspension system with an accumulator can be designed. Further, it was proved that a reasonable setting for the accumulator can reduce the impact force on the transport vehicle through simulation, and the optimal accumulator parameters can be obtained. Finally, an experiment in the field was set up and carried out, and the experimental results presented to prove the viability of the proposed method.
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