微颗粒黏附力测试的空气动力学模型

Aerodynamic measurement model of micro-particle adhesion force

从当前国内外微颗粒黏附力测试技术研究成果出发,分析总结得出微颗粒黏附力测试技术的基本思路为清除技术思路,并分析微颗粒从固体表面清除的拉升、滑动和滚动3种运动模式;根据空气动力学的相关理论和微颗粒的相关特性作出微颗粒黏附力测试模型的基本假设,由此建立微颗粒黏附力测试的空气动力学模型,从所建立的测试模型出发分析了微颗粒从固体表面清除的3种运动模式,得出滚动模式时所测试的微颗粒黏附力最大,同时其也是微颗粒被清除时最易发生的一种运动模式;就滚动模式运用可视化软件MATLAB对微颗粒黏附力的测试模型进行可视化分析模拟,分别绘制微颗粒黏附力与测试模型中各参数之间的关系图,并得到相应条件下所测试的微颗粒黏附力。

Based on the current domestic and international research of micro-particle adhesion force measurement technology, the basic idea of micro-particle adhesion force measurement technology （removal technology） was analyzed and concluded. Three motion patterns （moving, sliding and rolling） of the micro-particle removed from the solid surface were analyzed. According to the related theory of the aerodynamics and the correlated characteristics of the micro-particle, the basic assumptions of the micro-particle adhesion force measurement model were made. Based on theassumptions, the aerodynamic measurement model of the micro-particle adhesion force was established. Those three motion patterns of the micro-particle removed f^om the solid surface were analyzed based on the aerodynamic measurement model, suggesting that the rolling pattern has the largest micro-particle adhesion force and is the most easily-occurring pattern when the micro-particle is removed from the solid surface. As for the rolling patterns, the measurement model was analyzed and simulated, using the visualization sofiware-MATLAB. The maps of the relationships between the micro-particle adhesion forces and the parameters of the measurement model were drawn, respectively. At last, the micro-particle adhesion forces under the corresponding conditions were obtained.