应用压电陶瓷传感器对钢筋混凝土框-剪模型振动台试验地震损伤监测
|
摘要
压电材料具有正、逆压电特性,将压电陶瓷换能器粘贴在产生损伤可能性最大区域的结构表面,选取特定的激励对换能器进行驱动,激发弹性波对结构进行扫描,并应用小波变换对传感器所接收信号进行分析。利用1∶4比尺的钢筋混凝土框-剪模型振动台模拟地震试验,结果表明,应用压电陶瓷传感器可以有效地监测到结构的微小损伤。
Piezo material has advantages of direct and converse piezoelectric effects,which can be used as actuator and sensor.Piezoceramic patch can be stuck on the surface of a concrete structure where the most possible damage may occur.Under special excitation piezoceramic actuator can generate elastic wave to scan the structure.Here,piezoceramic transducer is applied to monitor a reinforced concrete frame-shear wall structure of scale 1∶4 under simulated earthquake.Wavelet theory is employed to analyse the signal received by piezoceramic sensor.Result indicates that piezoelectrical material is adapted to effectively monitor micro-damage of structure.
Piezo material has advantages of direct and converse piezoelectric effects,which can be used as actuator and sensor.Piezoceramic patch can be stuck on the surface of a concrete structure where the most possible damage may occur.Under special excitation piezoceramic actuator can generate elastic wave to scan the structure.Here,piezoceramic transducer is applied to monitor a reinforced concrete frame-shear wall structure of scale 1∶4 under simulated earthquake.Wavelet theory is employed to analyse the signal received by piezoceramic sensor.Result indicates that piezoelectrical material is adapted to effectively monitor micro-damage of structure.
引文
1李宏男,李东升.土木工程结构安全性评估、健康监测及诊断述评.地震工程与工程振动,2002,22(3):82—90
2宗周红,任伟新,阮毅.土木工程结构损伤诊断研究进展.土木工程学报,2003,36(5):105—110
3李宏男等著.结构健康监测.大连:大连理工大学出版社,2004
4 Housner G W,et al.Structure control:past,present and fu-ture.Journal of Engineering M echan ics,1997,123(9):897—971
5 Soh C H.Perform ance of sm art p iezoceram ic patches in healthmon itoring of a RC bridge.Sm art M atls.And Struct.2000,9(4):533—542
6 Saaffi M,et al.Health mon itoring of concrete structuresstrengthened w ith advanced composite m aterials using p iezoelec-tric transducers Composite:Part B 2001,333—342
7胡卫兵,李立洲,闫云聚.复合材料层合梁结构在线损伤检测.西安建筑科技大学学报(自然科学版),2002,34(1):48—51
8袁慎芳等.应用应力波技术的蜂窝结构损伤监测.数据采集与处理,2000,12,15(4):486—490
9杨飏,欧进萍.压电变摩擦阻尼器减振结构的数值分析.振动与冲击,2005,24(6):1—4
10杨大智.智能材料与智能系统.天津:天津大学出版社,2000
11孙慷,张福学.压电学.北京:国防工业出版社,1984
12邓东皋,彭立中.小波分析.数学进展,1991,20(3):294—310
13李宏男,孙鸿敏.小波分析在土木工程领域中的应用.世界地震工程,2003,19(2):16—22
14李宏男,孙鸿敏.基于小波分析和神经网络的框架结构损伤诊断方法.地震工程与工程振动,2003,23(5):141—148
15韩建刚,任伟新,孙增寿.结构损伤识别的小波包分析试验研究.振动与冲击,2006,25(1):47—50
16 Yan Y J,et al.On line detection of crack dam age in compositep lates using embedded p iezoelectric actuators/sensors and wave-let analysis Composite Structures,2002,58:29—38
17胡昌华,李国华等.基于MATLAB 6.x的系统分析与设计—小波分析(第二版).西安:西安电子科技大学出版社,2004
2宗周红,任伟新,阮毅.土木工程结构损伤诊断研究进展.土木工程学报,2003,36(5):105—110
3李宏男等著.结构健康监测.大连:大连理工大学出版社,2004
4 Housner G W,et al.Structure control:past,present and fu-ture.Journal of Engineering M echan ics,1997,123(9):897—971
5 Soh C H.Perform ance of sm art p iezoceram ic patches in healthmon itoring of a RC bridge.Sm art M atls.And Struct.2000,9(4):533—542
6 Saaffi M,et al.Health mon itoring of concrete structuresstrengthened w ith advanced composite m aterials using p iezoelec-tric transducers Composite:Part B 2001,333—342
7胡卫兵,李立洲,闫云聚.复合材料层合梁结构在线损伤检测.西安建筑科技大学学报(自然科学版),2002,34(1):48—51
8袁慎芳等.应用应力波技术的蜂窝结构损伤监测.数据采集与处理,2000,12,15(4):486—490
9杨飏,欧进萍.压电变摩擦阻尼器减振结构的数值分析.振动与冲击,2005,24(6):1—4
10杨大智.智能材料与智能系统.天津:天津大学出版社,2000
11孙慷,张福学.压电学.北京:国防工业出版社,1984
12邓东皋,彭立中.小波分析.数学进展,1991,20(3):294—310
13李宏男,孙鸿敏.小波分析在土木工程领域中的应用.世界地震工程,2003,19(2):16—22
14李宏男,孙鸿敏.基于小波分析和神经网络的框架结构损伤诊断方法.地震工程与工程振动,2003,23(5):141—148
15韩建刚,任伟新,孙增寿.结构损伤识别的小波包分析试验研究.振动与冲击,2006,25(1):47—50
16 Yan Y J,et al.On line detection of crack dam age in compositep lates using embedded p iezoelectric actuators/sensors and wave-let analysis Composite Structures,2002,58:29—38
17胡昌华,李国华等.基于MATLAB 6.x的系统分析与设计—小波分析(第二版).西安:西安电子科技大学出版社,2004
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心