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[官方发布] 特种设备无损检测技术优秀论文评选公示(11)

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远东网实名认证 发表于 2019-3-19 10:53:03 | 显示全部楼层 |阅读模式 打印 上一主题 下一主题
 
(分批公示特种设备无损检测技术优秀论文的题目、作者和摘要。公示次序按电子稿接收排序)
134一种基于网络化的掌上型视频、多频涡流检测终端
林俊明1,任吉林2,王威1、林发炳1,林春景1
(1. 爱德森(厦门)电子有限公司,厦门,361008;2. 南昌航空大学,南昌,330038)
摘要:本文介绍了一种基于网络化掌上型智能视频、多频涡流检测终端的基本原理与软、硬件设计方法及其应用。终端集多频涡流与视频检测功能于一体,具有无线网络传输功能,可实现远程数据交换和操控,具备了初步的“准”云检测功能。
关键词:涡流,视频,多频,无线网络,云检测,检测终端
134Network-based Handheld Video & Multi-frequency Eddy-Current Detection Terminal
Lin Junming1, Ren Jilin2, Wang Wei1, Lin Fabing1, Lin Chunjing1
(1. Eddysun (Xiamen) Electronic Co. Ltd., Xiamen, 361008;2. Nanchang Hangkong University, Nanchang, 330038)
Abstract: This paper introduces the basic principle, the design method of a network-based handheld video & multi-frequency eddy-current detection terminal. This terminal is designed with both multifrequency eddy current testing and endoscope detection functions. Besides, it can realize remote data exchange and manipulation with wireless network transmission function, which means it has the initial quasi cloud detection function.
Keywords: Eddy-Current, Video, Multi-frequency, Wireless network, Cloud Non-destructive testing (CNDT), Detection terminal
135基于Matlab对闪光灯脉冲法红外无损检测过程的二维模拟
李果 首都师范大学物理系 北京 100048
摘要:本文尝试使用Matlab对红外热波无损检测过程进行二维数值模拟。该方法较之于有限元模拟法,其在保证了一定精度的前提下大大减少了计算量。其适用于对检测过程的初步粗略模拟,同时也为使用matlab对热波无损检测过程的三维模拟提供借鉴和经验。
关键词:Matlab 热波 无损检测
135AbstractThis paper attempts to simulate the 2-D infrared thermal wave Non-destructive testing processing using Matlab. Comparing to FEA method, this method largely reduce the amount of calculation with preserving the accuracy. It can be used as a rough simulation for NDT processing, and also offer some experience for 3-D simulation of NDT processing using Matlab.
KeywordsMatlab thermalwave NDT
136变能量X射线多谱成像理论与方法研究
陈平*,韩焱,潘晋孝
(中北大学 电子测试技术国家重点实验室,太原 030051)
摘要:在X射线数字成像过程中,射线透照方向上有效厚度差异大的复杂结构件,由于成像系统动态范围的限制,常规固定电压成像模式易出现过度曝光和曝光不足的共存现象,从而影响复杂结构件的数字成像。为此论文提出研究变电压X射线多谱成像技术,在常规的射线成像系统上,依据有效厚度与电压的匹配性改变X射线管电压,获取递变电压下的多谱图像序列,同时研究多谱图像序列融合,实现射线图像动态范围的扩展,完整地再现复杂结构件的内部结构信息。实验表明,相对于12bit的成像系统,有效动态范围扩展了4倍,保证了图像结构的完整性,从而说明了变电压X射线多谱成像技术能够充分发挥系统的硬件潜能,能够实现复杂结构件的X射线成像。
关键词:多谱成像;复杂结构件;动态范围;变电压;有效厚度
136Research on X-ray multi-spectrum imaging based on variable voltage
Ping Chen, Yan Han, Jinxiao Pan
National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China
Abstract: In conventional X-ray imaging, the ray image of a complicated structural component often appears to be overexposed or underexposed. This appearance is because of the variations in the effective thickness of the component along the orientation of the X-ray penetration exceed the limit of the dynamic range of the X-ray imaging system. Complete structural information cannot be obtained, and this lack will impact the quality of the X-ray image. To solve this problem, the technology of X-ray multi-spectrum imaging based on variable voltage has been advanced. In this new method, the tube voltage is adjusted several times to accommodate the full necessary range of effective thickness, and then, the extracted images are fused to reconstruct the full projection information. Experiment shows: for the 12 bit imaging system, the effective dynamic range has expanded 4 times. So the new technology can adequately enlarge the hardware potential to completely represent the internal structure information of a complicated structural component.
Keywords: Multi-spectrum Imaging; Complicated Structural Component; Dynamic Range; Variable Voltage; Effective Thickness
137H62铜合金试件拉伸过程声发射监测与数据分析
李伟忠,刘延雷,韩树新,王兵,夏福勇,何承代,韦新华,余兵
(杭州市特种设备检测院,浙江 杭州,310003)
摘 要:铜材料由于其较好的耐腐蚀性,近年来被广泛应用于化工等行业。应用声发射检测技术对铜制承压设备进行检测可能是较为有效的方法之一。本文制作了H62型号的铜拉伸试件,并对拉伸过程进行了声发射监测。研究结果表明:铜材料的弹性阶段较短;对于铜拉伸试件,由于其材料黏弹性较高,其出现破坏时,高幅值信号较少; 相同铜试件,有效声发射信号个数与加载速率有关。加载速率越快,有效声发射信号越多;铜材料声发射信号的波形峰值频率一般出现在210-340 kHz范围。相关结论可以为开展铜制承压设备的声发射监测提供参考。
关键词:铜;拉伸试验;声发射监测;数据分析
137Acoustic Emission Monitoring on Tensile Process of H62 Copper Specimens and its Data Analysis
LI Wei-Zhong, LIU Yan-Lei, HAN Shu-Xin, WANG Bing, XIA Fu-Yong, HE Cheng-Dai,  WEI Xin-Hua, YU Bing
(Hangzhou Special Equipment Inspection Institute, 310003)
Abstract: Recently, Copper material has been widely used in chemical industries because of its good corrosion resistance. Application of acoustic emission technique to detect copper pressure equipment may be one of effective methods. This paper produced H62 copper tensile specimens, which stretching process was monitored by acoustic emission technique. The results show that, the copper has a shorter elastic stage; less high-amplitude signals were brought out when tensile specimen was broken because of its high viscoelastic characteristics; the effective number of acoustic emission signals related with the loading rate with the same copper specimen. And there were more effective acoustic emission signals with a faster loading rate; copper material waveform peak of acoustic emission signals appeared in the range of 210-340 kHz. Conclusions can be referred when acoustic emission monitoring was carried out for copper pressure equipments.
Keywords: Copper; tensile test; acoustic emission monitoring; data analysis
138声发射检测大型桥门式起重机的可行性分析与试验
李伟忠,刘延雷*,王兵,吕正锐,张微宏,田金金
杭州市特种设备检测院,杭州 310003
摘 要:起重机是工业生产中的重要设备,统计表明起重机事故约占我国全部工业企业伤害事故的20%左右,且近几年仍层出不穷。基于此,本文对将声发射在线监测方法引入到大型桥门式起重机检测的可行性进行了分析。并对一台起重机进行了在线检测。结果表明:声发射应用于大型桥门式起重机的检测是可行的,能有效识别存在的危险缺陷的信号;桥门式起重机两端部的圆弧过渡处角焊缝属于应力集中区,是声发射检测时的重点监测部位。
关键词:桥门式起重机 声发射 检测 试验
138Feasibility analysis and experimental research on inspection of huge gantry crane by acoustic emission method
LI Wei-zhong, LIU Yan-lei, WANG Bing, LV Zheng-rui, ZHANG Wei-hong, TIAN Jin-jin
Hangzhou Special Equipment Inspection Institute, Hangzhou 310003, China
Abstract: Crane plays an important role in industry production. According to statist ics, crane accident accounts for about 20% of total industry injuries, and it are still endless in recent years. The feasibility of inspection of huge gantry crane by acoustic emission method was analyzed in this article. And a crane was inspected. The results showed that acoustic emission method is feasible to be applied to inspection of large gantry cranes, and can effectively identify the defective signal; fillet weld in both ends of the beam have serious stress concentration where should be actively monitored by acoustic emission method.
Key words: Gantry crane Acoustic emission Inspection Experiment
139基于声发射检测技术的碳纤维复合材料失效机理研究
李伟忠1,刘延雷1,2*,韩树新1,王兵1,夏福勇1,余兵1
(1. 杭州市特种设备检测院,浙江杭州,310003;2. 浙江大学化工机械研究所,浙江杭州,310027)
摘要采用声发射技术对碳纤维复合材料层合板拉伸试验过程进行了全程监测,并对不同缠绕角度下的试验监测结果进行了分析。结果表明:在不同失效阶段(如:脱层、剥离和断裂等),声发射采集到的信号不同,因此可以采用声发射技术对该材料的不同失效阶段进行区分。通过对不同缠绕角度时声发射监测信号的分析还得出不同缠绕角度时层合板的力学特性和失效机理存在不同。由于试验数据分析结果表明声发射技术可以判别拉伸过程碳纤维复合材料层合板内部不同阶段的活动状态,因此,声发射技术可以用于碳纤维复合材料的整体安全评价。
关键词声发射;碳纤维复合材料;失效机理;拉伸试验
【139】Failure mechanism analysis on carbon fiber composite materials basing on AE
LI Weizhong1, LIU Yan-Lei[1], 2*, HAN Shu-Xin1, WANG Bing1, XIA Fu-yong1, YU BING1
(1. Hangzhou Special Equipment Inspection Institute, Zhejiang, Hangzhou, 310003, China; 2. Institute of ProcessEquipment, Zhejiang University, Hangzhou 310027, China)
Abstract: Tensile process of carbon fiber composite laminate was monitored by acoustic emission technique (AE). And the acoustic emission signals by tensile specimens of different winding angles were analyzed. The results show that carbon fiber released signals of different characteristics in different stages. So, the acoustic emission technique can effectively distinguish the different stages such as delaminating, detaching and fracture. Also, different angles in specimen’s layers of carbon fiber had different mechanical properties and failure mechanisms. Analysis on experimental data showed that acoustic emission testing technique can determine the process of different internal activities in carbon fiber composite laminate. Therefore, it can be used in the integrity evaluation for carbon fiber composite materials.

Keywords: Acoustic emission; carbon fiber composite material; failure mechanism; tensile specimen

140高压厚壁管道氢损伤机理及其检测技术研究

曹怀祥 姚小静 申孝民

山东省特种设备检验研究院  山东济南  250101
摘要:本文基于山东某化工厂高压厚壁临氢管道爆炸事故,通过断口宏观和微观分析,研究了高压厚壁管道应变时效脆化后诱发氢损伤的机理;同时对氢损伤超声波检测方法的优缺点进行了比较分析,制作了超声相控阵检测对比试块,认为采用超声相控阵可以有效进行氢损伤检测;研究结果对于服役厚壁管道安全状况检测评价具有一定的指导意义。
关键词:高压厚壁管道   应变时效脆化   氢损伤  超声相控阵
141射线检测中底片数字化与缺陷分析技术研究*
汪立新1,王鹏2,杜卫东1,,张峰1,韩伟 1,王泽民2,吕志刚2
(1.山东省特种设备检验研究院,山东济南 250101
2. 西安工业大学电子信息工程学院,陕西西安 710032)
摘要:针对在承压类特种设备无损检测中,传统的人工评定X射线焊缝底片的效率低、评片结果受评片人员技术与经验的限制,底片长期保存和查询困难的问题,设计了射线检测底片数字化仪器与底片信息化管理软件。并根据数字化底片的缺陷图像的特征,采用图像预处理、图像分割算法,专家系统等方法,提出了一种胶片焊缝缺陷的识别方法,并建立了缺陷专家数据库。试验结果表明该仪器能够快速实现底片的数字化,并对胶片中的焊缝缺陷定位识别率达到90%以上,提高了射线检测的效率。
关键词:底片数字化;焊缝缺陷;底片信息化管理;缺陷识别
142射线检测中小缺陷的本影大小对缺陷的检出率的影响

王贵谦

射线检测中,对小缺陷的有效检出一直是检测人员关注的课题,尤其是裂纹等面积型危险性较大的缺陷,它对特种设备的使用安全性构成了很大的威胁,这类缺陷的有效检出意义重大。

143小径管双壁双影椭圆透照及底片评定分析
王贵谦
小口径无缝钢管广泛应用于锅炉压力管道中。依据JB/T  4730-2005《承压设备无损检测》外径小于或等于100mm的钢管的对接焊缝一般应采用双壁双影法。只有当上下两焊缝椭圆显示有困难时才可采用垂直透照法。在实际工作中,为了达到理想的检验目的,从透照工艺到底片评定都要严格控制。本文就有关问题进行讨论。
144中子衍射在焊接残余应力测试分析中的应用
李峻宏 刘蕴韬 高建波 李眉娟 李天富 胡瑞 刘荣灯 刘晓龙 陈东风
(中国原子能科学研究院 核物理研究所,北京,102413)
摘要:中子衍射技术是一种进行残余应力三维、无损、深度表征的先进手段,其技术特点使之能够在焊接结构残余应力测定等相关领域发挥重要的作用。本文对各种应力测定技术进行了比较,综述中子衍射在焊接残余应力测试领域的相关研究,并分析和展望了未来的应用前景。
关键词:中子衍射,焊接结构,残余应力



 
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