基于PVDF梳状换能器的零群速度Lamb波层合板损伤检测的数值研究OA北大核心CSTPCD
Numerical investigation on damage detection of ZGV Lamb waves in laminated plates based on PVDF comb transducers
为提高层合板损伤检测的准确性与灵敏度,基于聚偏二氟乙烯(polyvinylidene fluoride,PVDF)梳状换能器激发的零群速度(zero group velocity,ZGV)Lamb波,提出了一种层合板损伤的检测方法.采用二维时域有限元方法,研究了 PVDF梳状换能器对零群速度 Lamb波的激励,通过改变层合板中铝层杨氏模量来表征不同的损伤程度,分析了PVDF梳状换能器电压响应特性与层合板损伤程度之间的关系.结果表明:采用PVDF …查看全部>>
In order to improve the accuracy and sensitivity of damage detection in laminated plates,a damage detection method is proposed based on zero group velocity(ZGV)Lamb waves excited by polyvinylidene fluoride(PVDF)comb transducers.The two dimensional time domain finite element method is used to study the excitation of the ZGV Lamb waves by PVDF comb transducers.By changing Young's modulus of the aluminum layer in laminated plates to characterize different damag…查看全部>>
郭帅;尹莘新;邓明晰
重庆大学航空航天学院,重庆 400044重庆大学航空航天学院,重庆 400044重庆大学航空航天学院,重庆 400044
物理学
损伤检测PVDF梳状换能器零群速度Lamb波杨氏模量变化
damage detectionPVDFcomb transducersZGV Lamb wavesvariation of Young's modulus
《陕西师范大学学报（自然科学版）》 2024 (2)
异形特征结构中的超声导波及其非线性效应研究
43-50,8
国家自然科学基金(12134002)
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