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主动加热
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  active heating
    Finite element analysis combined with back propagation(BP) neural network were applied to the active heating infrared nondestructive testing for determing the influencing factors on defect quantitation.
    应用有限元分析和BP神经网络分析主动加热式红外无损检测中影响缺陷定量的因素。
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    The thermal wave nondestructive testing technology based on emissivity of the object,it can find surface and subsurface flaws in the composites of airplane through measuring difference in temperature between flaws and materials by active heating methods and inspection system.
    红外热波无损检测基于物体的热辐射特性,利用主动加热技术,通过相关的检测系统记录试件表面缺陷和基体材料由于不同热特性引起的温度差异,进而判定飞机复合材料表面及内部的损伤。
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  “主动加热”译为未确定词的双语例句
    Pulse current was used to control SMA actuator. Speed of heating, time of cooling and heat preservation was obtained.
    本文在研究本构关系的基础上,使用脉冲电流对SMA驱动器进行控制,相应得到了主动加热速度,被动恢复时间以及保温所需电流。
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  active heating
Active heating of susliks on emerging from hibernation is closely linked with the intensification of shivering thermogenesis.
      
Biaxially aligned IBAD YSZ films were deposited on amorphous and polycrystalline substrates without active heating.
      
Active heating of the LaB6 has not been employed, rather the electrodes are heated by the plasma resulting in a weakly emitting electrode.
      
Active heating of the LaB6 electrode is also planned, so that emission of a higher electron current density from the electrode may be achieved.
      
Active heating or cooling of the compensation chamber is also possible.
      
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Finite element analysis combined with back propagation(BP) neural network were applied to the active heating infrared nondestructive testing for determing the influencing factors on defect quantitation. Finite element analysis software Ansys, was used to calculate the temperature field of the plates with back sinking hole defects of different depth and diameter under constant heating condition, and surface temperature cloudy map and temperature rise were obtained. The data obtained were used as the sample to...

Finite element analysis combined with back propagation(BP) neural network were applied to the active heating infrared nondestructive testing for determing the influencing factors on defect quantitation. Finite element analysis software Ansys, was used to calculate the temperature field of the plates with back sinking hole defects of different depth and diameter under constant heating condition, and surface temperature cloudy map and temperature rise were obtained. The data obtained were used as the sample to train the BP neural network for quantitative evaluation of defects. It was showed by testing that neural network was very effective in predicting the depth of defects. The signal processing method was valuable for engineering application to infrared nondestructive testing.

应用有限元分析和BP神经网络分析主动加热式红外无损检测中影响缺陷定量的因素。对背部开有不同深度、不同直径沉孔缺陷的平板表面采用恒定热流加热。使用有限元分析软件Ansys计算得到表面温度分布云图和温升。将计算数据作为样本训练用于缺陷定量分析的BP神经网络,测试表明神经网络方法对于未知缺陷深度的识别相当有效。研究表明该信号处理技术对红外无损检测具有工程应用价值。

Honeycomb structure is difficult to be tested by the traditional nondestructive testing methods.Thermal wave nondestructive testing technology uses the pulse to heat the sample and thermal camera to detect the surface temperature.A computer collects and processes the thermal images according to different properties of samples to get the satisfied effect.The thermal wave nondestructive detection is fast,sensitive for honeycomb and its dynamic demonstration provides more details for further analysis.

蜂窝结构是常规无损检测方法难以检测的对象。红外热波无损检测技术利用脉冲主动加热,采用红外热像仪实时监视表面温场,通过计算机完成图像采集,针对不同试件材料特点采用不同的图像处理方法进行处理。红外热波无损检测方法对蜂窝结构实现了快速、灵敏检测及动态演示,为进一步分析判断提供了依据。

The thermal wave nondestructive testing technology based on emissivity of the object,it can find surface and subsurface flaws in the composites of airplane through measuring difference in temperature between flaws and materials by active heating methods and inspection system.Compared with conventional inspecting methods,this technology has wide application prospect.

红外热波无损检测基于物体的热辐射特性,利用主动加热技术,通过相关的检测系统记录试件表面缺陷和基体材料由于不同热特性引起的温度差异,进而判定飞机复合材料表面及内部的损伤。较之于常规检测方法,红外热波无损检测具有非接触、快速、直观、准确等优点。

 
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