| 负载对超声加工声学系统特性的影响 |
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| 引用本文： | 刘折,靳宇晖,卞平艳,赵波.负载对超声加工声学系统特性的影响[J].航空精密制造技术,2012(1):10-13. |
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| 作者姓名： | 刘折 靳宇晖 卞平艳 赵波 |
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| 作者单位： | 河南理工大学机械与动力工程学院;山西煤矿机械制造有限责任公司 |
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| 基金项目： | 国家自然科学基金(50975080/E050903);河南省机械制造及其自动化省级重点学科资助 |
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| 摘 要： | 以一维超声振动系统为研究对象,以点、线、面三种不同的加载方式对工件进行加载,研究了负载对超声加工声学系统特性的影响。实验表明,当以点、线的加载方式对工件进行加载时,载荷的变化对声学系统特性各参数的影响不大;而当加载方式为面接触时,机械品质因数Qm、谐振频率fs和动态电阻R随着载荷F的增大有明显的增大趋势,动态电容C和最大电导Gmax却随着载荷F的增大而减小。
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| 关 键 词： | 超声加工 声学系统 负载 机械品质因数 谐振频率 |
Study on Influence of Load on Acoustic System Characteristics of Ultrasonic Machining |
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| Institution: | LIU Zhe,JIN Yu-hui,BIAN Ping-yan,et al.(1.School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000; 2.Shanxi Coal Mining Mechanical Manufacture Limited Liability Company,Taiyuan 030000) |
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| Abstract: | Taking one-dimensional ultrasonic vibration system as the research object,the influence of load on acoustic system characteristics of ultrasonic machining is studied by three different load modes of dot,line and face.The experimental results show that,the change of load has little influence on the acoustic system parameters of ultrasonic machining when the load modes on the workpiece are dot and line.And when the load mode is surface contact,mechanical quality factor,resonance frequency and dynamic resistance increase significantly with the increase of the load.However the dynamic capacitance and maximum conductivity decrease with the increase of the load. |
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| Keywords: | ultrasonic machining acoustic system load mechanical quality factor resonance frequency |
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