GAO Wentao, YUAN Zuqiang, JIA Wenhua and et al. Study on the influence of structure parameters of multi-way valve based on AMESim on system performance[J]. Journal of Light Industry, 2019, 34(5): 96-102. doi: 10.3969/j.issn.2096-1553.2019.05.013
Citation:
GAO Wentao, YUAN Zuqiang, JIA Wenhua and et al. Study on the influence of structure parameters of multi-way valve based on AMESim on system performance[J]. Journal of Light Industry, 2019, 34(5): 96-102.
doi:
10.3969/j.issn.2096-1553.2019.05.013
Study on the influence of structure parameters of multi-way valve based on AMESim on system performance
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1. Institute of Engineering Machinery, Nanjing Tech University, Nanjing 211800, China;
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2. College of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China
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Received Date:
2018-01-02
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Abstract
In order to reduce the commutation impact,flow hysteresis and valve core sticking in the excavator working process,based on the working principle of load-sensitive proportional multiplexing valve, the speed of main valve and pilot valve is matched by adding a damping hole between the proportional pressure relief valve and the main valve. The mathematical model of proportional pressure relief valve is deduced, and the AMESim model of load-sensitive proportional multiplexing valve is established to verify its dynamic characteristics. The simulation results show that with the increase of viscous friction force, the stability of the system will increase, and the response time of the system will also increase, so viscous friction force can not be set too large,with 5000 N·(m/s) as the suitable; adding a damping hole between the proportional pressure relief valve and the main valve can improve the stability of the multi-way valve; with the increase of spring stiffness, the oscillation amplitude of main valve displacement increases, which causes the stability deterioration, so the design of spring stiffness should not be too large with 30 000 N/m as the suitable;the quality of the main valve spool has little effect on the system response.In design only its stiffness and corrosion resistance should be taken into consideration.
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