2021 IEEE Far East NDT New Technology & Application Forum (FENDT)最新文献

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Extraction Method of Characteristic Parameters of Magnetic Acoustic Emission Signals Based on CEEMD 基于CEEMD的磁声发射信号特征参数提取方法
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749637
Shan-chin Wu, Zenghua Liu, Zhinong Li, G. Shen, Qingsong Wen
{"title":"Extraction Method of Characteristic Parameters of Magnetic Acoustic Emission Signals Based on CEEMD","authors":"Shan-chin Wu, Zenghua Liu, Zhinong Li, G. Shen, Qingsong Wen","doi":"10.1109/FENDT54151.2021.9749637","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749637","url":null,"abstract":"In view of the problem that magnetic acoustic emission (MAE) signal has strong background noise and characteristic parameters cannot be effectively extracted from the signal, the signal was decomposed by complementary empirical modal decomposition (CEEMD). The decomposed IMF components were analyzed with the original signal, and the IMF components with large correlation coefficients to the original signal were retained and added after the characteristic parameters are calculated. Therefore, the purpose of effectively suppressing noise can be achieved. A method for extracting MAE characteristic parameters based on CEEMD was proposed. The results of static tensile experiments show that the characteristic parameter diagram of the signal becomes smoother after CEEMD decomposition. Finally, the method was applied to the processing of MAE signal under low-cycle fatigue experiments. The results show that material yield and material hardening can be found in advance from the characteristic parameter diagram. The experimental results show that the proposed CEEMD algorithm has unique advantages in low-cycle fatigue MAE signal processing.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131134435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of crack quantity of carbon fiber composites based on Sparrow BP Neural Network 基于Sparrow BP神经网络的碳纤维复合材料裂纹量预测
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749693
Danhong Wang, Bo Ye, Qiming Duan
{"title":"Prediction of crack quantity of carbon fiber composites based on Sparrow BP Neural Network","authors":"Danhong Wang, Bo Ye, Qiming Duan","doi":"10.1109/FENDT54151.2021.9749693","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749693","url":null,"abstract":"Carbon fiber composites was affected by complex alternating load, environment and other factors in the process of service, led to the emergence and development of tiny crack, once the crack reaches a certain degree, composites fractures, serious safety accidents happen, so structural health monitoring of carbon fiber composites is necessary, predicting the quantity of cracks is helpful to monitor the health status of carbon fiber composites better. Common damage prediction methods include Back Propagation Neural Network, Logistic Regression, etc., BP Neural Network has higher accuracy in damage prediction. However, BP Neural Network has the risk of falling into local extreme value. Therefore, using Sparrow BP Neural Network, which is combined by Sparrow Search Algorithm (SSA) with strong global optimization ability and BP Neural Network, to predict the crack quantity of composites. The prediction results by using Sparrow BP Neural Network are closer to the real crack quantity, which can predict the crack quantity of carbon fiber composites more accurately, solve the problem that the internal cracks of the composites are difficult to predict. It helps to promote the widespread application of intelligent algorithms to predict the cracks of composites.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124994519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Study on Ultrasonic Properties of Alloy Steels with Different Compositions 不同成分合金钢超声性能的试验研究
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749695
Ruipeng Li, Lin Sha, Xue-bin Wang, Xin Wang, Jin Zhang
{"title":"Experimental Study on Ultrasonic Properties of Alloy Steels with Different Compositions","authors":"Ruipeng Li, Lin Sha, Xue-bin Wang, Xin Wang, Jin Zhang","doi":"10.1109/FENDT54151.2021.9749695","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749695","url":null,"abstract":"Material ultrasonic performance parameters are the basic data of ultrasonic testing, but there is little research on ultrasonic performance parameters in gun barrel ultrasonic testing because it is difficult to obtain and process gun barrel steel. In the ultrasonic damage test and simulation of gun barrel, 45# steel and other steel which is easy to obtain and process are used instead of gun barrel steel for testing. Due to different materials, the feasibility of 45# steel instead of gun barrel steel in the experiment remains to be verified. In this paper, the ultrasonic testing system is used to measure the sound velocity, attenuation coefficient and nonlinear coefficient of gun barrel steel and 45# steel, the microstructure and grain size of gun barrel steel and 45# steel are measured, in order to compare the ultrasonic properties of the two materials. The results show that the gun barrel steel used in this paper has the same ultrasonic longitudinal wave velocity and attenuation coefficient as 45# steel in the field of linear ultrasound, while the nonlinear coefficient of gun barrel steel is slightly higher than that of 45# steel. It is proved that using 45# steel instead of gun barrel steel in the experiment is feasible.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130232291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on large crankshaft medium frequency induction hardening residual stress distribution and its influence on deformation 大型曲轴中频淬火残余应力分布及其对变形的影响研究
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749651
Bing Kong, Er-hong Li, Dong-jun Wang, Yong Zhao, Xiao-hui Zhang, Wenyu Song, Yuren Lu, Chunguo Xu
{"title":"Study on large crankshaft medium frequency induction hardening residual stress distribution and its influence on deformation","authors":"Bing Kong, Er-hong Li, Dong-jun Wang, Yong Zhao, Xiao-hui Zhang, Wenyu Song, Yuren Lu, Chunguo Xu","doi":"10.1109/FENDT54151.2021.9749651","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749651","url":null,"abstract":"For the non-destructive testing of residual stress at different depths on the surface of crankshaft components after quenching, an ultrasonic critical refraction longitudinal wave method based on two different frequencies is proposed. The residual stress distribution after quenching and the radial runout were measured respectively. Combined with measuring radial runout, the deformation law under different residual stress distribution is analyzed. The results show that the residual compressive stress induced by quenching will lead to larger radial runout error in the middle of crankshaft components.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120935145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Calculation of Frequency Characteristic of Induction Coils 感应线圈频率特性的数值计算
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/fendt54151.2021.9749687
Kai Sun, Na Zhang, Yu Tao, C. Ye
{"title":"Numerical Calculation of Frequency Characteristic of Induction Coils","authors":"Kai Sun, Na Zhang, Yu Tao, C. Ye","doi":"10.1109/fendt54151.2021.9749687","DOIUrl":"https://doi.org/10.1109/fendt54151.2021.9749687","url":null,"abstract":"Induction coils are widely used in electromagnetic non-destructive testing and measurement of alternating magnetic fields. It is important to acquire the frequency characteristics of induction coils for parameter optimization. In this paper, a numerical method is proposed to estimate the frequency characteristics of an air core induction coil, with which the inductance (L), self-capacitance (Cs) and AC resistance (Rac) of a coil are calculated. Then the impedance of the coil versus frequency curve is derived based on an equivalent circuit model including correction of the resonance quality factor and skin effect of AC current. The curves obtained with the method of two coils are compared with experimental results, which validate the numerical method. This method is a useful and inexpensive tool for coil's parameters optimization and choosing proper operating frequency range for eddy current testing probes.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"489 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116693533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-destructive detection technology for air-tightness of cigarette packets and the application in the research of moisture migration behavior 卷烟包气密性无损检测技术及其在吸湿迁移行为研究中的应用
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749654
Lili Fu, Le Wang, Ruilin Hu, Kecheng Zhang, Yuhong Lin, Shuang Wang, Zhongya Guo, Mingjian Zhang, Miao Sun, Qi Zhang, Longwu Shen, Bin Li
{"title":"Non-destructive detection technology for air-tightness of cigarette packets and the application in the research of moisture migration behavior","authors":"Lili Fu, Le Wang, Ruilin Hu, Kecheng Zhang, Yuhong Lin, Shuang Wang, Zhongya Guo, Mingjian Zhang, Miao Sun, Qi Zhang, Longwu Shen, Bin Li","doi":"10.1109/FENDT54151.2021.9749654","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749654","url":null,"abstract":"Scientific sealed packaging allows the quality of cigarette packets stably by blocking the moisture migration during the process of storage and transportation. The gas diffusion behavior inside the cigarette packets follows the pressure difference method, based on the dynamic pressure drop mathematical model and Bernoulli equation, the self-designed non-destructive detection (NDD) of air-tightness was developed, the effective leakage area (A) was proposed to represent the air-tightness, and the correlation coefficient R between the NDD and the standard method was 0.987. Samples with different air-tightness could be distinguished through this method, and the moisture migration behaviors of samples with various air-tightness are detected. It revealed that under the same environment, as the need of air-tightness for the cigarette package increased, the change of moisture content increased accordingly, and the moisture migration rate of the cigarette packet was exponentially related to the effective leakage area. The correlation coefficient is 0.9884. The NDD for air-tightness of cigarette packet could reduce consumption and cost, enhance the testing efficiency and product quality.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134243236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-speed Railway Bogies Welded Seam Fatigue Life Detection Using Nonlinear Ultrasonic 高速铁路转向架焊缝疲劳寿命非线性超声检测
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749691
Yanhong Chen, Wen-Zhong Zhao, Chunguang Xu, Wenhao Hu, Yuren Lu, Wenkai Li, Yujiang Li, Linxiang Sun
{"title":"High-speed Railway Bogies Welded Seam Fatigue Life Detection Using Nonlinear Ultrasonic","authors":"Yanhong Chen, Wen-Zhong Zhao, Chunguang Xu, Wenhao Hu, Yuren Lu, Wenkai Li, Yujiang Li, Linxiang Sun","doi":"10.1109/FENDT54151.2021.9749691","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749691","url":null,"abstract":"With the rapid development of high-speed rail, the quality of bogies plays a vital role in the safe driving of trains. Meanwhile, welding is the main manufacturing method of the bogie, and the inspection of the weld seam is particularly important. In this paper, nonlinear ultrasonic methods are used to detect bogies welded seam in various fatigue states. The changing law of ultrasonic nonlinear coefficient under different fatigue life is observed. The results show that within a certain range, with the increase of the fatigue cycle, the relative nonlinear coefficients of the second and third orders increase linearly, which proved the effectiveness of nonlinear ultrasonic testing of component fatigue life and internal micro-cracks.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123175743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Denoising of phased array ultrasonic total focus image on rail bottom welds 轨底焊缝相控阵超声全聚焦图像去噪研究
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749663
Songbai Xu, Chaoyong Peng, Jianqiang Guo, Jianping Peng, Ling Luo
{"title":"Denoising of phased array ultrasonic total focus image on rail bottom welds","authors":"Songbai Xu, Chaoyong Peng, Jianqiang Guo, Jianping Peng, Ling Luo","doi":"10.1109/FENDT54151.2021.9749663","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749663","url":null,"abstract":"The rail bottom weld area is prone to cracks, which can cause rail break. When using the ultrasonic total focus method(TFM) to detect rail bottom welds, there are a lot of background noise in the image due to the material impurities in the weld area, resulting in unobvious defect characterization. In this paper, the band-pass filtering method is used to filter and denoise the data collected in the full matrix capture(FMC) mode. Then, according to the phase distribution characteristics of the ultrasonic detection signal, the phase coherence factor is used to weight the image on the basis of the filtering to further improve the image signal-to-noise ratio. A 64-element probe is used to image the B-type phased array test block. The results show that this algorithm can effectively improve the image signal-to-noise ratio without weaking the defect signals. Under the same test conditions, the vertical groove defects on the bottom surface of the rail weld were detected and imaged. The results show that this method has a good suppression effect on the background noise in welds, the signal-to-noise ratio has been greatly improved, and can eliminate the artifacts of crack defects.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130637396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of Gradient Residual Stress in Welding of Railway Bogie Frame Based on Ultrasonic Method 基于超声法的铁路转向架框架焊接梯度残余应力检测
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749644
Yanhong Chen, Jiaxin Wang, Yongjiang Ma, T. Geng, Yuren Lu
{"title":"Detection of Gradient Residual Stress in Welding of Railway Bogie Frame Based on Ultrasonic Method","authors":"Yanhong Chen, Jiaxin Wang, Yongjiang Ma, T. Geng, Yuren Lu","doi":"10.1109/FENDT54151.2021.9749644","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749644","url":null,"abstract":"Ultrasonic critical refraction longitudinal wave method uses the characteristics of refraction critical refraction longitudinal wave propagating along the surface of the component, and the residual stress level in the depth can be detected and determined by sensors of different frequencies. This paper uses this technology to study the residual stress distribution levels of different depth gradients of railway bogie frames, and confirms the feasibility of using the LCR wave method to detect gradient residual stresses. The results show that with the continuous increase of the frame depth gradient, The stress level shows a trend of first increasing and then decreasing, and the residual stress value is the largest at the depth of 0.65mm on the surface.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123852759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Color classification of solid wood floor based on LGBM 基于LGBM的实木地板颜色分类
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749636
Yutu Yang, Binli Gou
{"title":"Color classification of solid wood floor based on LGBM","authors":"Yutu Yang, Binli Gou","doi":"10.1109/FENDT54151.2021.9749636","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749636","url":null,"abstract":"With the development of economy, solid wood flooring has become a new favorite of indoor decoration. The color of solid wood floor plays an important role in interior decoration quality. For 108 three types of solid wood floors provided by enterprises, the statistical characteristics of different color spaces of solid wood floor were extracted, and the LGBM model was used to classify and sort the importance of different characteristics to the classification results. Finally, 94.44% accuracy was obtained in 36 images of the test set, and find the effective characteristics of color feature representation of solid wood floor were the first-order moment of a, b channel in Lab color space and the first moment and second moment of H channel in HSV color space. (Abstract)","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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