| 压力管道局部损伤检测的多输出模态实验研究 |
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| 引用本文： | 蒲建国,徐忠成,王晓钢,李鸿雁,刘明亮,赵云峰,郭杏林.压力管道局部损伤检测的多输出模态实验研究[J].管道技术与设备,2011(2):25-27. |
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| 作者姓名： | 蒲建国 徐忠成 王晓钢 李鸿雁 刘明亮 赵云峰 郭杏林 |
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| 作者单位： | 1. 大连市锅炉压力容器检验研究院,辽宁,大连,116013
2. 大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 辽宁省质量技术监督局科技计划项目 |
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| 摘 要： | 基于振动的实验模态分析方法可对结构参数进行识别,并在此基础上实现结构损伤识别.该方法目前已用于压力管道的损伤检测中.通常采用单输出模态实验法,即各个节点进行逐点激励,这样就带来了检测效率较低的问题.对此,采用多输出模态实验,同时在管道模型上布置多个传感器进行数据采集,使检测效率得到了显著提高.压力管道损伤诊断的模态实验...
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| 关 键 词： | 压力管道 局部损伤 振动检测 模态分析 多输出模态实验 |
Research on Multi-output Modal Experiment of Inspecting Local Damage in Pressure Pipeline |
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| PU Jian-guo,XU Zhong-cheng,WANG Xiao-gang,LI Hong-yan,LIU Ming-liang,ZHAO Yun-feng,GUO Xing-lin.Research on Multi-output Modal Experiment of Inspecting Local Damage in Pressure Pipeline[J].Pipeline Technique and Equipment,2011(2):25-27. |
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| Authors: | PU Jian-guo XU Zhong-cheng WANG Xiao-gang LI Hong-yan LIU Ming-liang ZHAO Yun-feng GUO Xing-lin |
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| Institution: | PU Jian-guo1,XU Zhong-cheng1,WANG Xiao-gang1,LI Hong-yan1,LIU Ming-liang1,ZHAO Yun-feng1,GUO Xing-lin2(1.Dalian Boiler and Pressure Vessel Inspection Institute,Dalian 116013,China,2.State Key Laboratoryof Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | A vibration-based experimental modal analysis can help actualize structural parameter identification and structural damage identification.The method has been applied to damage inspection in pressure pipeline.It is a usual case to adopt a single-output modal experiments to actualize the abovesaid identifications,i.e.excitation node by node.Then the paper induces the low-efficiency problem with the testing process.Therefore,this paper chose multi-output modal experiments,through the collocation of several sen... |
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| Keywords: | pressure pipeline local damage vibration inspection modal analysis multi-output modal experiment |
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