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Introduction Dynamicbehaivoranalysis of the cracked rotorhas been investigated since 1 960 's,and now the re-searches on the faultdiagnosis and condition moni-toring of cracked rotor are paid more and more at-tentions because of its importance in industry.in1 970 's,Gasch proposed a simple hinge crack modelthat was very good for the representation of thecyclic stiffness variables and the stability lim-its[1,2 ] . With fracture mechanics,Dimarogonas andhis colleagues modelled the crack as a … 相似文献
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