| 超声振动微量给粉机理及振幅对给粉速率的影响 |
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| 引用本文： | 黄华,齐乐华,曾祥辉,杨方.超声振动微量给粉机理及振幅对给粉速率的影响[J].机械工程学报,2009,45(1). |
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| 作者姓名： | 黄华 齐乐华 曾祥辉 杨方 |
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| 作者单位： | 西北工业大学机电工程学院,西安,710072 |
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| 基金项目： | 国防预研项目，西北工业大学创新基金 |
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| 摘 要： | 在建立振动毛细管物理模型的基础上,从振动与波动理论的角度入手,深入研究毛细管在简谐振动作用下的运动行为,推导在毛细管上产生并传播的机械波的波动方程和管壁质点的位移方程.发现入射波与反射波相互作用,在毛细管上形成衰减行波,毛细管管壁质点做椭圆运动.提出粉体颗粒在管壁质点运动、重力及粉体颗粒间相互作用力的作用下流出毛细管的给粉机理.研究振幅对粉体颗粒运动加速度的作用,得到运动加速度随着振幅的增加而增大的关系,从而得出给粉速率随振幅增加而增加的结论.并用YANG Yong,TAKANO Takehiro等的试验结果对本文的研究结论进行验证,证明了研究结论的正确性.
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| 关 键 词： | 超声振动 微量给粉 振幅 毛细管 |
Principle of Micro-feeding Powders by Ultrasonic Vibration and Influence of Amplitude on Rate of Micro-feeding Powders |
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| HUANG Hua,QI Lehua,ZENG Xianghui,YANG Fang.Principle of Micro-feeding Powders by Ultrasonic Vibration and Influence of Amplitude on Rate of Micro-feeding Powders[J].Chinese Journal of Mechanical Engineering,2009,45(1). |
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| Authors: | HUANG Hua QI Lehua ZENG Xianghui YANG Fang |
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| Affiliation: | School of Mechatronic Engineering;Northwestern Polytechnical University;Xi'an 710072 |
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| Abstract: | To research the principle of feeding powders using vibrated capillary tube in theory,the movement behavior of the capillary tube under the excitation of the simple harmonic vibration is studied based on the physical model of vibrated capillary tube.The wave equations and displacement equations are deduced for the mechanical wave generated and transmitted on the capillary tube and the mass point of capillary tube wall,respectively.The decaying progressing wave generates and transmits when the incident wave i... |
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| Keywords: | Ultrasonic vibration Micro-feeding powder Amplitude Capillary |
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