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

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Ultrasonic Nondestructive Testing Technology for Residual Stresses of Aluminum Alloy Plates 铝合金板残余应力的超声无损检测技术
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749653
T. Song, Lin Wang, Zeng-wei Lu, Hong-run Pan, J. Yuan, Ping Lin, B. Han
{"title":"Ultrasonic Nondestructive Testing Technology for Residual Stresses of Aluminum Alloy Plates","authors":"T. Song, Lin Wang, Zeng-wei Lu, Hong-run Pan, J. Yuan, Ping Lin, B. Han","doi":"10.1109/FENDT54151.2021.9749653","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749653","url":null,"abstract":"This paper aims at the problem of poor dimensional stability of the aluminum alloy plates due to residual stress during the bending process, ultrasonic critical refraction longitudinal wave method was used for detection. By measuring the residual stress distribution state of the plate in different directions, the cause of product deformation is proposed, and reliable data support is provided for the dimensional deformation law of the plate in different directions. The results show that by non-destructively measuring the residual stress distribution state of the plate during the bending process, the stress distribution state of the plate can be accurately obtained, which plays an important role in the analysis of the cause of the plate deformation.","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":"128301960","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
Design and Analysis of Curvature Adaptive Wall Climbing Robot 曲率自适应爬壁机器人的设计与分析
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749678
Chao Gui, Jie Li, Chun-lei Tu, Xingsong Wang, Kai Zheng
{"title":"Design and Analysis of Curvature Adaptive Wall Climbing Robot","authors":"Chao Gui, Jie Li, Chun-lei Tu, Xingsong Wang, Kai Zheng","doi":"10.1109/FENDT54151.2021.9749678","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749678","url":null,"abstract":"Aiming at the problem that most of the existing wall-climbing robots will have the wheel hanging due to the curvature change when the column tank is crawling and turning, a wall-climbing robot that can adapt to the change of the wall curvature is designed. And from a mathematical point of view, a model was established to explain the process of its robot adapting to curvature changes during the turning process of the inner and outer walls of the column tank, and the theoretical angle change curve of the adapting process was obtained. Finally, a column tank experiment platform and a wall-climbing robot prototype were built, and the actual angle change curve of the robot during the movement of the experimental platform was obtained. The theoretical change curve obtained from the mathematical angle was compared with the actual angle change curve obtained from the experiment, and the trend and The values are basically the same, verifying the feasibility of the curvature adaptive wall-climbing robot designed in this paper.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"141 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":"125184044","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
Wall-climbing Robot Path Planning for Cylindrical Storage Tank Inspection Based on Modified A-star Algorithm 基于改进a星算法的爬壁机器人圆柱形储罐检测路径规划
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749634
Jiameng Xue, Jie Li, Jingyu Chen, Chunlei Tu, A. Stancu, Xingsong Wang
{"title":"Wall-climbing Robot Path Planning for Cylindrical Storage Tank Inspection Based on Modified A-star Algorithm","authors":"Jiameng Xue, Jie Li, Jingyu Chen, Chunlei Tu, A. Stancu, Xingsong Wang","doi":"10.1109/FENDT54151.2021.9749634","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749634","url":null,"abstract":"Wall-climbing robots have been widely developed in the application of storage tank inspection. One of the significant issues in robot tank inspection is how to determine an optimal path for the robot from an initial position to the destination. A-star algorithm is a first search algorithm commonly used in robotics path planning, whereas it may suffer from some drawbacks, for example, there are some redundant points could be removed from the generated path and some sharp turns need to be smoother for the robot to track with. As a result, a modified A-star algorithm is proposed in this paper to optimize the generated path. The simulation results show that the number of way points is decreased and the sharp turns in the path are removed. Therefore, this modified algorithm can provide a more efficient path planning with smoother curves and shorter operation time compared with normal method, without losing the optimization.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"28 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":"131653181","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
Advanced frequency or/and phase modulated excitation waveforms for enhanced depth resolvability of thermal wave radar 提高热波雷达深度分辨率的先进频率或/和相位调制激励波形
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749680
Zhitao Luo, Sheng Wang, Xin Wu, Zihao Su, Fei-Long Mao, Hui Zhang
{"title":"Advanced frequency or/and phase modulated excitation waveforms for enhanced depth resolvability of thermal wave radar","authors":"Zhitao Luo, Sheng Wang, Xin Wu, Zihao Su, Fei-Long Mao, Hui Zhang","doi":"10.1109/FENDT54151.2021.9749680","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749680","url":null,"abstract":"In this paper, a detailed investigation of the depth resolvability performance of thermal wave radar (TWR) in the inspection of composites through advanced frequency or/and phase modulated excitation waveforms is presented. In addition to conventional linear frequency modulated waveform (LFM) and Baker phase modulated waveform, two advanced excitation waveforms, i.e., orthogonal phase-coded linear frequency modulated waveform (OPCLFM) and nonlinear frequency modulated waveform (NLFM), are introduced to enhance depth resolvability of TWR. To evaluate fairly their performance, all aforementioned excitation waveforms are formulated based on the same central frequency. Moreover, both phase contrast and delay time contrast are obtained to quantitatively characterize the depth resolvability of these excitation waveforms by a one-dimensional photothermal diffusion wave model of carbon fiber reinforced polymer (CFRP) laminate. Finally, we demonstrate that a proper window function can further significantly enhance the depth resolvability of TWR.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"48 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":"129740738","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
A New Type of Ultrasonic Wall Thickness Measurement System Applied in Natural-gas Pipeline 一种用于天然气管道的新型超声壁厚测量系统
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749657
Jin-sheng Yang, Peng Zhao, Y. Cao, Xuan Zhao, Yang Li, Dong-jie Zhang
{"title":"A New Type of Ultrasonic Wall Thickness Measurement System Applied in Natural-gas Pipeline","authors":"Jin-sheng Yang, Peng Zhao, Y. Cao, Xuan Zhao, Yang Li, Dong-jie Zhang","doi":"10.1109/FENDT54151.2021.9749657","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749657","url":null,"abstract":"Due to the lack of liquid coupling medium, the conventional ultrasonic wall thickness measurement system is difficult to carry out Inline Inspection (ILI) in the natural-gas pipeline. Because of the special work condition, a new type of ultrasonic wall thickness measurement system based on solid couplant has been developed to implement ILI. The experimental result shows that the system has same measurement accuracy compared with piezoelectric ultrasonic thickness meter, which realizes the goal of thickness measurement for natural-gas pipeline.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"9 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":"125320630","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
Circumferential and Longitudinal Defect Detection Using Multiphysics Fusion Electromagnetic Sensing Probe 利用多物理场融合电磁传感探头进行圆周和纵向缺陷检测
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749643
Gai Ru, B. Gao, Daokun Jiao, Xiangyu Zhao, Zongpu Bai, Haoran Li, G. Tian
{"title":"Circumferential and Longitudinal Defect Detection Using Multiphysics Fusion Electromagnetic Sensing Probe","authors":"Gai Ru, B. Gao, Daokun Jiao, Xiangyu Zhao, Zongpu Bai, Haoran Li, G. Tian","doi":"10.1109/FENDT54151.2021.9749643","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749643","url":null,"abstract":"Traditional magnetic flux leakage (MFL) detection technology is limited to single direction defect detection, which will lead to missed detection and bring great hidden danger to pipeline safety assessment. This paper proposes a new structured multiphysics sensing of merging Alternating Current Field Measurement (ACFM) and MFL within a multi-parameter system for different defects detection. In particular, a novel electromagnetic coupling sensor structure is proposed, which enables simultaneous interaction between the excitation modes of Yoke and coil. Magnetic Yoke is integrated to magnetizing the axial pipeline to detect the circumferential defects while the coil excites the circumferential uniform alternating current field and recognizes the axial defect. The novel structured sensing is highly sensitive to the detection of both Circumferential and Longitudinal defects. Simulation and experiments on defects in several samples have been conducted to validate the reliability and efficiency of the proposed system.","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"73 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":"126421077","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
Ultrasonic Evaluation of the Influence of Density on the Residual Stress of RDX-based Bonded Explosives 密度对rdx基粘结炸药残余应力影响的超声评价
2021 IEEE Far East NDT New Technology & Application Forum (FENDT) Pub Date : 2021-12-14 DOI: 10.1109/FENDT54151.2021.9749673
Xiaowen Guo, Lin Wang, Jun-li Han, Hong-run Pan, J. Yuan, Ping Lin, B. Han
{"title":"Ultrasonic Evaluation of the Influence of Density on the Residual Stress of RDX-based Bonded Explosives","authors":"Xiaowen Guo, Lin Wang, Jun-li Han, Hong-run Pan, J. Yuan, Ping Lin, B. Han","doi":"10.1109/FENDT54151.2021.9749673","DOIUrl":"https://doi.org/10.1109/FENDT54151.2021.9749673","url":null,"abstract":"Aiming at the problem of cracks and poor dimensional stability of the sample due to the molding residual stress in the molding powder polyblack explosive during the pressing process, a solution to measure the residual stress of the explosive sample using the ultrasonic longitudinal wave method is proposed to analyze the dimensional stability and possibility of the sample Assessment of the location of the resulting cracks. The relationship between different densities and stress distribution states is studied by measuring the ultrasonic characteristic parameters of the samples with different densities, the microscopic particle state of the samples and the residual stress distribution. The reasons for product deformation are put forward to provide reliable data support for the stress state laws of samples at different density stages. The results show that the distribution of residual stress produced by non-destructive measurement during the compression process plays an important role in evaluating the dimensional stability and crack risk of the sample formed by the compression molding of the black explosive","PeriodicalId":425658,"journal":{"name":"2021 IEEE Far East NDT New Technology & Application Forum (FENDT)","volume":"2006 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":"125837141","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
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