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基于改进空间滤波器的复合材料结构损伤成像方法

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Keywords: 结构健康监测,复合材料,空间滤波器,损伤成像,压电传感器阵列,主动Lamb波,Hilbert变换,信号合成

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Abstract:

为降低Lamb波在复合材料结构中传播时存在的频散现象和各方向传播特性的不一致性给损伤监测带来的困难,提出一种利用Hilbert变换改进的空间滤波器对复合材料结构损伤进行成像的方法。分析了基于空间滤波器的信号合成成像原理,在此基础上利用Hilbert变换构造传感器时域响应信号的解析信号参与到信号合成成像过程中。通过对仿真声源的成像实验,验证了该方法的可行性,通过对碳纤维复合材料板结构上激励源和损伤的成像实验,验证了该方法的功能。研究表明该方法能够识别损伤相对于压电传感器阵列的角度位置和损伤散射信号的到达时刻。

References

[1]  袁慎芳. 结构健康监控 [M]. 北京: 国防工业出版社, 2007: 206-212.
[2]  Boller C. Next generation structural health monitoring and its integration into aircraft design [J].International Journal of Systems Science, 2000, 31(11): 1333-1349.
[3]  Yuan S, Xu Y, Peng G. New developments in structural health monitoring based on diagnostic lamb wave [J]. Journal of Material Science and Technology, 2004, 20(5): 490-496.
[4]  Holmes C, Drinkwater B W, Wilcox P D. Advanced post-processing for scanned ultrasonic arrays: Application to defect detection and classification in non-destructive evaluation [J]. Ultrasonics, 2008, 48(6/7): 636-642.
[5]  Michaels J E. Detection, localization and characterization of damage in plates with an in situ array of spatially distributed ultrasonic sensors [J]. Smart Materials and Structures, 2008, 17(3): 1-15.
[6]  王 强, 袁慎芳. 复合材料板脱层损伤的时间反转成像监测[J]. 复合材料学报, 2009, 26(3): 99-104. Wang Qiang, Yuan Shenfang. Time reversal imaging method for composite delamination monitoring [J]. Acta Materiae Compositae Sinica, 2009, 26(3): 99-104.
[7]  栾经德, 李启虎, 刘文化, 等. 一种最佳空间滤波器的实现 [J]. 声学学报, 2004, 29(2): 143-148. Luan Jingde, Li Qihu, Liu Wenhua, et al. Realization of one type of optimum spatial filter [J]. Acta Acustica, 2004, 29(2): 143-148.
[8]  栾经德, 汲长利, 陈锦光. 一种最佳空间滤波器在圆柱型基阵上的实现 [J]. 声学技术, 2005, 25(2): 98-100, 116. Luan Jingde, Ji Changli, Chen Jinguang, et al. Implementation of optimum spatial filter on a cylindrical array [J]. Technical Acoustics, 2005, 24(2): 98-100, 116.
[9]  冯 杰, 杨益新, 孙 超. 自适应空域矩阵滤波器设计和目标方位估计 [J].系统仿真学报, 2007, 19(20): 4798-4802. Feng Jie, Yang Yixin, Sun Chao. Adaptive spatial matrix filter design with application to DOA estimation [J].Journal of System Simulation, 2007, 19(20): 4798-4802.
[10]  孙 超. 水下多传感器阵列信号处理 [M]. 西安: 西北工业大学出版社, 2007: 161-165.
[11]  Purekar A S, Pines D J. A phased sensor/actuator array for detecting damage in 2D structures //43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.Denver: AIAA, 2002: 1547-1555.
[12]  Purekar A S, Pines D J, Sundararaman S, et al. Directional piezoelectric phased array filters for detecting damage in isotropic plates [J].Smart Materials and Structures, 2004, 13(4): 838-850.
[13]  Victor Giurgiutiu. Tuned lamb wave excitation and detection with piezoelectric wafer active sensors for structural health monitoring [J].Journal of Intelligent Material Systems and Structures, 2005, 16(4): 291-305.
[14]  彭 鸽. 基于Lamb波的结构健康主动监测技术研究 . 南京: 南京航空航天大学, 2006.
[15]  Qiu L, Yuan S. On development of a multi-channel PZT array scanning system and its evaluating application on UAV wing box [J]. Sensors and Actuators A, 2009, 151(2): 220-230.

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