轴裂纹识别的频率法  

The Indentification of Shaft-Crack by the Frequency Method

作　　者：卢艳辉[1] 向阳[1] 

机构地区：[1]武汉理工大学能源与动力工程学院,湖北武汉430063

出　　处：《长春工业大学学报》2003年第4期69-72,共4页Journal of Changchun University of Technology

摘　　要：利用有限元方法得出含裂纹光轴固有频率变化率的统计规律曲线,通过等高线截取识别出裂纹位置 比及深度比,并由试验验证该方法的有效性。A regular statistical curve for the variation rate of natural frequency in a crack-containing cylindrical shaft is obtained by employing the finite element method. By contour sectioning, the position and depth of the crack can be identified. The validity of the method is proven through test.

关 键 词：有限元 固有频率 裂纹 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]