CAJ | 학술논문

　　损伤定位在结构损伤检测中处于基础和关键的地位。能否准确找出损伤位置，决定了损伤识别的成败。因此，提出频率变化平方比向量置信准则。该方法仿照模态置信准则（MAC）的建立方式，以频率变化平方比是损伤位置的函数这一理论而建立的。分别计算实际测试或者理论的频率变化平方比向量和相应频率下单元变形为基础的频率变化平方比向量。按照置信准则，计算两个向量的相关性。以相关性来判定损伤是否发生在该单元。
　　손상정위재결구손상검측중처우기출화관건적지위。능부준학조출손상위치，결정료손상식별적성패。인차，제출빈솔변화평방비향량치신준칙。해방법방조모태치신준칙（MAC）적건립방식，이빈솔변화평방비시손상위치적함수저일이론이건립적。분별계산실제측시혹자이론적빈솔변화평방비향량화상응빈솔하단원변형위기출적빈솔변화평방비향량。안조치신준칙，계산량개향량적상관성。이상관성래판정손상시부발생재해단원。
Abstruct : Damage positioning is of important significance in structural damage detection. In this paper, a modal assurance criterion (MAC) was proposed based on the concept of frequency-change square ratio vector (FCSRV) and the theory that the frequency-change square ratio is a function of damage location. The FCSRVs based on the data from the actual test or computation and from the element deformation were calculated respectively. According to the assurance criterion, the correlation of the two vectors was calculated. And according to the correlation, the damage location was determined.