为减少水液压阀中的气蚀和冲蚀造成的磨损，本文设计一种新的阀芯结构，通过采用全气蚀模型对其周围流场进行仿真，得到流场特性的理论分析结果。基于仿生学的Bio-TRIZ理论将生物学模型映射到工程学模型，设计一种仿红柳的抗冲蚀模型提高阀芯对冲蚀磨损的抵抗能力，然后用ISIGHT软件优化阀芯结构参数，最后通过FLUENT的复合模型计算了阀内部的气体体积率和冲蚀率，可以看出阀口处的气蚀和冲蚀都被大大减弱。
In order to reduce the cavitation and erosion occurring in the water hydraulic valve, a new structure of valve core was presented in this article. The Full Cavitation Model was adopted to deploy the flow field analysis, the characteristics of the flow field were theoretically analyzed with simulation. Further, The Bio-TRIZ theory was used to mapping the biological model to the engineering model, in this way, a tamarisk-like anti-erosion shape was presented to improve the erosion resistance of the valve core. The ISIGHT software was used to optimize the structural parameters of the valve core. Finally, the gas volume rate and the erosion rate of the valve were calculated through the FLUENT Hybrid model, the results shows that the erosion and the cavitation reduced effectively.
2016,(s1): 100-104 收稿日期：2016-08-20
DOI：10.3404/j.issn.1672-7619.2016.S1.017
分类号：TH137.52+1
基金项目：黑龙江省自然科学基金资助项目（F2016003）；高等学校博士学科点专项科研基金资助项目（20122304110014）；中央高校基本业务费（HEUCFX15008）
作者简介：徐贺(1964-),男,教授,博士生导师,研究方向为水液压系统设计与制造及可再生能源与海水淡化技术。
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