期刊
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME
卷 128, 期 2, 页码 403-410出版社
ASME
DOI: 10.1115/1.2181998
关键词
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An approach is developed to analyze the multiharmonic forced response of large-scale finite element models of bladed disks taking account of the nonlinear forces acting at the contact interfaces of blade roots. Area contact interaction is modeled by area friction contact elements which allow for friction stresses under variable normal load. unilateral contacts, clearances, and interferences. Examples of application of the new approach to the analysis of root damping and forced response levels are given and numerical investigations of effects of contact conditions at root joints and excitation levels are explored for practical bladed disks.
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