| 螺栓轴向压力超声检测中声时测量的EDA仿真原理 |
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| 引用本文： | 莫亚梅,袁国秋,李光. 螺栓轴向压力超声检测中声时测量的EDA仿真原理[J]. 无损检测, 2011, 0(5): 19-21,27 |
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| 作者姓名： | 莫亚梅 袁国秋 李光 |
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| 作者单位： | 南通大学机械工程学院;南通大学理学院;南通市明德重工有限公司; |
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| 基金项目： | 南通大学自然科学基金资助项目(07Z037);南通大学研究生科技创新资助项目(YKC08009) |
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| 摘 要： | 基于超声波激励螺栓产生受迫振动的振动方程与RLC电路微分方程的一致性，建立了电路参数中电感、电容、电阻与超声波传播过程中螺栓的质量、力顺、力阻的一一对应关系，将影响螺栓中声时测量的力学量等效为电路参量。在此基础上，利用EDA（电子设计自动化）仿真软件，分析了电路参数的变化对声时的影响，拟合了电阻、电容与声时差的关系式。EDA仿真得出的电阻、电容对声时的影响规律与实例测量结果自洽，说明了通过EDA仿真的方法研究声时测量的可行性。
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| 关 键 词： | 螺栓轴向应力 超声波 声时差测量 EDA仿真 |
The Exploration about EDA Simulation Principle in Time Measurement of Ultrasonic Bolt Axial Stress Measurement Technique |
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| MO Ya-Mei,YUAN Guo-Qiu,LI Guang. The Exploration about EDA Simulation Principle in Time Measurement of Ultrasonic Bolt Axial Stress Measurement Technique[J]. Nondestructive Testing, 2011, 0(5): 19-21,27 |
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| Authors: | MO Ya-Mei YUAN Guo-Qiu LI Guang |
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| Affiliation: | MO Ya-Mei~1,YUAN Guo-Qiu~2,LI Guang~3 (1.School of Mechanical Engineering,Nantong University,Nantong 226019,China,2.School of Sciences,3.Nantong Mingde Heavy Industry Stock Co Ltd,Nantong 226361,China) |
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| Abstract: | Based on the identity of oscillatory differential equation between vibration excited by ultrasonic wave propagating in bolts and RLC electric circuit,the one to one correspondence between the mechanical parameter(such as mass,mechanical compliance mechanical resistance)and the circuit parameter(such as inductance,capacitance, resistance)was established.The mechanical parameters affecting the measurement of sound time(time of ultrasonic wave propagating in the bolt)were equivalent to circuit parameter.And th... |
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| Keywords: | Bolt axial stress Ultrasonic Sound time measurement EDA simulation |
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