Liu Jilu, Li Ruichuan, Ding Xinkai, Liu Qi
School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China.
Heliyon. 2022 Nov 18;8(11):e11700. doi: 10.1016/j.heliyon.2022.e11700. eCollection 2022 Nov.
The hydraulic force has a great negative effect on the cartridge poppet valve system. Based on the law of momentum, the calculation formula of flow force of outflow poppet valve is modified, and a new valve core structure is designed. The compensation effect of the improved main valve core structure on the hydraulic force is discussed; secondly, CFD simulation is carried out to obtain the influence rules of these parameters on hydrodynamic forces. According to the analysis, the influence of main valve core arc structure on hydrodynamic force compensation under different opening degrees is also studied; then the optimal parameters of the arc structure are obtained through analysis. AMEsim system simulation model and test-bed are built to verify the hydrodynamic formula and simulation results. The experimental results verify that the new valve core structure has a good hydrodynamic compensation effect.
液压力对插装式锥阀系统有很大的负面影响。基于动量定律，修正了流出式锥阀液动力的计算公式，并设计了一种新型阀芯结构。讨论了改进后的主阀芯结构对液压力的补偿效果；其次，进行CFD仿真，得到这些参数对液动力的影响规律。通过分析，研究了主阀芯圆弧结构在不同开度下对液动力补偿的影响；然后通过分析得到圆弧结构的最优参数。建立AMESim系统仿真模型和试验台，对液动力公式和仿真结果进行验证。实验结果验证了新型阀芯结构具有良好的液动力补偿效果。
