Design Research of S-type Tube Valve of Spraying Concrete Machine Based on Dimensional-analysis
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摘要: S管阀是一种广泛用于混凝土喷射机的关键部件,它的性能直接影响混凝土喷射机这类混凝土机械的使用性能。为减少混凝土在混凝土喷射机S管阀中的流动阻力和阻塞管道,利用量纲分析理论,建立了适用于计算液体力学Fluent软件的S管阀仿真数学模型,在给定条件下对所建立的模型进行了多次仿真,得到了S管阀各段长度的最佳比例关系,并确定S管阀最优的抛物线方程。Abstract: S-type tube valve is one of the key components widely used in concrete machinery.Its property can directly affect the performance of this kind of machines such as spraying concrete machine.By using the theory of dimensional analysis,its mathematical simulation model which is suitable for computational fluid dynamics software Fluent was made in order to reduce flow resistance through it in concrete spraying machines and to prevent clogging.The optimum proportion of each level length of it was obtained by numerical simulation under given conditions.The optimal parabola equations of it were also built in this paper.
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Key words:
- dimensional analysis /
- S-type tube valve /
- numerical simulation /
- parameter optimization
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[1] 张国忠. 现代混凝土泵车及施工应用技术[M].北京:中国建材工业出版社,2004. [2] Davide M. Improved Concrete Pump with Means to Antonmti-cally Adjust the Working the S-valve According to the Type of Concrete[P].EP:1306550B1,2005. [3] Chu J J,Cheong J. Concrete-mortar Transfer System of Con-crete Car[P].US:20050232069A1,2004. [4] 谈庆明. 量纲分析[M].合肥:中国科学技术大学出版社,2007. [5] 许在坤. 混凝土泵水平管阀设计[J].工程机械,1997,(01):12-14. [6] 王新颖,邵辉,王宏鑫. 基于量纲分析的输液管道泄漏计算模型研究用[J].工业与环保,2007,(04):43-44. [7] 韩占忠. 新流体工程仿真计算实例与应用[M].北京:北京理工大学出版社,2004. [8] David C W. Turbulence Modeling for CFD[M].California,DSW Industries,Inc,1994. [9] Yakhot V,Orszag S A. Renormalization group analysis of turbu-lence basic theory[J].Journal of Sdentiflc Computing,1986,(01):39-51. [10] 陈长植. 工程流体力学[M].武汉:华中科技大学出版社,2006. [11] 吴占松,谢菲. 用于管道煤粉流量测量的文丘里管型设计及优化[J].清华大学学报(自然科学版),2007,(05):666-669.
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