CAJ | 학술논문

针对大型构件内部微损伤难以及时发现排除,给生活生产造成安全隐患的现状,基于波包提取技术,利用波包的虚拟时间逆传播,设计了一种新的传感器阵列,并在理论上推导了该传感器阵列二维成像的运算公式,最后利用MATLAB编程模拟仿真了用该传感器阵列进行无损检测时的二维成像结果,结果表明其成像结果的综合精度可以达到98.7%,因此用该传感器阵列进行大型构件内部微损伤的探测对于发现安全隐患、排除安全隐患具有重大的指导意义。
침대대형구건내부미손상난이급시발현배제,급생활생산조성안전은환적현상,기우파포제취기술,이용파포적허의시간역전파,설계료일충신적전감기진렬,병재이론상추도료해전감기진렬이유성상적운산공식,최후이용MATLAB편정모의방진료용해전감기진렬진행무손검측시적이유성상결과,결과표명기성상결과적종합정도가이체도98.7%,인차용해전감기진렬진행대형구건내부미손상적탐측대우발현안전은환、배제안전은환구유중대적지도의의。
The inner imperceptible damage of big structures is difficult to discover and eliminate,which is very dangerous to people＇s life and their work.A new method to array sensors by using wave distilled technology and the technology of dummy time propagation is proposed;Then,the validity of the proposed algorithm in analytic theory is proved;Finally 2-D imaging result by using MATLAB simulation is tested,the results show that the precision of its 2-D imaging result achieves at 98.7%,so using the new sensors array to discover the inner imperceptible damage of big structures is viable and has important effect to people＇s life and their work.