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子波变换在复合材料损伤主动监测中的应用 被引量:1

APPLICATION OF THE WAVELET TRANSFORMATION TO THE ACTIVE DAMAGE DETECTION OF COMPOSITE MATERIAL
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摘要 基于传统信号处理对非平稳信号的局限,分析了子波变换下奇异信号和白噪声在多尺度空间中模极大值传播特性,对仿真声发射信号进行处理,结果表明该方法能有效地从声发射信号中提取声源位置信息,并提出了一种有效提取该信息的算法,说明了该方法在复合材料结构损伤主动监测中的应用前景。 Based on the limitation of classical signal processing methods in case of nonstationality, the modules maximum evolution behavior of singular and random noise in multiscale space was analyzed using the WT. A simulation AE signal was processed. And an effective algorithm was presented to obtain the useful signal about the place information from the simulation signal. It shows the nice future of the application in the active damage detection of composite material.
出处 《复合材料学报》 EI CAS CSCD 北大核心 1998年第4期59-63,共5页 Acta Materiae Compositae Sinica
基金 国家自然科学基金 航空科学基金 机械结构强度与振动国家重点实验室基金
关键词 子波变换 复合材料 损伤监测 声发射 wavelet transformation, composite material, damage detection, acoustic emission
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  • 1袁振明,声发射技术及其应用,1987年

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  • 1Chang Fu-Kuo. A summary report of the 2nd workshop on structural health monitoring. In: Chang Fu-Kuo, ed. Proceedings of the 3rd International Workshop on Structural Health Monitoring: The Demands and Challenges, Stanford, 2001-09-12-14. xxi~xxiii
  • 2Ewins D J. Modal Testing: Theory and Practice. NewYork:Wiley, 1985
  • 3Farrar Charles R, Jauregui David A. Comparative study of damage identification algorithms applied to a bridge:Ⅰ. experiment. Smart Materials and Structures, 1998, 7:704~719
  • 4Farrar Charles R, Jauregui David A. Comparative study of damage identification algorithms applied to a bridge: Ⅱ.numerical study. Smart Materials and Structures, 1998, 7:720~731
  • 5Gorl Edgar, Link Michael. Identification of damage parameters of a full-scale steel structure damaged by seismic loading. Smart Materials and Structures, 2001, 10:459~465
  • 6Todd M D, Nichols J M, Pecora L M, Virgin L N. Vibrationbased damage assessment utilizing state space geometry changes: local attractor variance ratio. Smart Materials and Structures, 2001, 10:1000~1008
  • 7李国强,李杰.工程结构动力检测理论与应用.北京:科学技术出版社,2002.48
  • 8Stubbs N, Kim J-T. Field verification of a nondestructive damage localization and severity estimation algorithm.Texas A&M University Report prepared for New Mexico State University, 1994
  • 9Fritzen Claus-Peter, Bohle Karsten. Application of modelbased damage identification to a seismically loaded structure. Smart Materials and Structures, 2001, 10:452~458
  • 10Lam H F, Ko J M, Wong C W. Localization of damaged structural connections based on experimental modal and sensitivity analysis. Journal of Sound and Vibration, 1998,210:91~115

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