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科技导报  2014 

基于量纲分析的钉盘磨绕流阻力矩模型构建

DOI: 10.3981/j.issn.1000-7857.2014.14.010, PP. 64-68

Keywords: 钉盘磨,绕流阻力矩模型,量纲分析

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Abstract:

利用计算流体力学(CFD)方法、正交试验和量纲分析,研究了钉盘磨齿钉所受绕流阻力矩的数学模型。以钉盘磨主要结构参数、操作参数为试验因素,以两圈齿钉所受绕流阻力矩为试验指标,对钉盘磨进行正交试验,并基于量纲分析将试验数据无量纲化,采用各无量纲参数多项式相乘的形式对数据进行拟合,建立了钉盘磨绕流阻力矩数学模型。实例计算结果显示,在两种工况条件下,该模型所计算的第1、2圈齿钉的绕流阻力矩与CFD计算值之间的相对误差分别为9.832%、28.914%和10.321%、5.442%,表明该模型的分析结果满足工程所需精度。

References

[1]  朱美玲, 颜景平, 刘志宏. 机械法制备超细粉机理和能耗的理论研究[J]. 东南大学学报: 自然科学版, 1994, 24(4): 1-7. Zhu Meiling, Yan Jingping, Liu Zhihong. Theoretical research of mecha- nism and fracture energy of mechanical method about preparation of ultra- fine powder[J]. Journal of Southeast University: Natural Science Edition, 1994, 24(4): 1-7.
[2]  Vogel L, Peukert W. From single particle impact behaviour to modeling of impact mills[J]. Chemical Engineering Science, 2005, 60(18): 5164-5176.
[3]  Peukert W. Material properties in fine grinding[J]. International Journal of Mineral Processing, 2004, 74(S1): 3-17.
[4]  王晓峰, 王印泽, 张裕中. 超微细粉碎过程中气/固两相流场的数值模 拟[J]. 现代制造工程, 2008(8): 71-76. Wang Xiaofeng, Wang Yinze, Zhang Yuzhong. Numerical simulation of the gas-particle two-phase flow in a superfine pulverizer[J]. Moden Man- ufacturing Engineering, 2008(8): 70-76.
[5]  吴浩. 高油脂物料微细粉碎技术及实验研究[D]. 无锡: 江南大学, 2008. Wu Hao. Study on the micro comminuting technology and experiment on the oiliness material[D]. Wuxi: Jiangnan University, 2008.
[6]  Takeuchi H, Nakamura H, Iwasaki T, et al. Numerical modeling of fluid and particle behaviors in impact pulverizer[J]. Powder Technology, 2012, 217(1): 148-156.
[7]  Sumner D. Two circular cylinders in cross-flow:A review[J]. Journal of Fluids and Structures, 2010, 26(6): 849-899.
[8]  Dehkordi B G, Moghaddam H S, Jafari H H. Numerical simulation of flow over two circular cylinders in tandem arrangement[J]. Journal of Hydrody- namics, 2011, 23(1): 114-126.
[9]  Baranyi L. Simulation of a low-Reynolds number flow around a cylinder following a figure-8-path[J]. International Review of Applied Sciences and Engineering, 2012, 3(2): 133-146.
[10]  王凯, 刘厚林, 袁寿其, 等. 离心泵叶轮轴面图的全自动CFD优化[J]. 农业工程学报, 2011, 27(10): 39-43. Wang Kai, Liu Honglin, Yuan Shouqi, et al. Automatic optimization of impeller meridional shape for centrifugal pumps based on CFD[J]. Transactions of the CSAE, 2011, 27(10): 39-43.
[11]  West G S, Apelt C J. Measurements of fluctuating pressures and forces on a circular cylinder in the Reynolds number range 104 to 2.5×105[J]. Journal of Fluids and Structures, 1993, 7(3): 227-244.
[12]  Gerrard J H. An experimental investigation of the oscillating lift and drag of a circular cylinder shedding turbulent vortices[J]. Journal of Fluid Mechanics, 1961, 11(2): 244-256.
[13]  Norberg C. Turbulence and Reynolds number effects on the flow and fluid forces on a single cylinder in cross flow[J]. Journal of Fluids and Structures, 1987, 1(3): 337-357.
[14]  王颖. Spar 平台涡激运动关键特性研究[D]. 上海:上海交通大学, 2010. Wang Ying. Research on the key characteristics of spar vortex-induced motion[D]. Shanghai: Shanghai Jiao Tong University, 2010.

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