北京理工大学学报(英文版)
北京理工大學學報(英文版)
북경리공대학학보(영문판)
JOURNAL BEIJING INSTITUTE OF TECHNOLOGY
2004年
1期
58-62
,共5页
冯慧华%左正兴%廖日东%张儒华
馮慧華%左正興%廖日東%張儒華
풍혜화%좌정흥%료일동%장유화
diesel%lower crankcase%modal analysis%modal correlation%FEM
To set up the dynamic FEM model of a high-duty diesel's lower crankcase with sufficient precision, modal correlation research on tested and calculated modes have been fulfilled. MACs between each mode pairs, CoMACs and ECoMACs on each node of modal testing model have been calculated. On the assistant of modal shape comparison, MACs could afford information about correlating relations between tested and calculated mode groups. CoMACs and ECoMACs have pointed out the direction of structure modification to FEM model. The results of the study show that the analytic model built has a certain degree of accuracy.
