Analysis of Random Vibration for Mistuned Bladed Disk
نویسندگان
چکیده
منابع مشابه
Experimental Investigation of Mistuned Bladed Disks System Vibration
EXPERIMENTAL INVESTIGATION ONMISTUNEDBLADED DISK SYSTEM VIBRATIONbyJia Li Co-Chairs: Christophe Pierre and Steven L. Ceccio Bladed disks are critical structural components in jet engines and other turbomachin-ery. The nominal design for a bladed disk is typically assumed to have identical blades.However, there are always small, random variations in the blade properties d...
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Mistuning, imperfections in cyclical symmetry of bladed disks is an inevitable and perilous occurrence due to many factors ncluding manufacturing tolerances and in-service wear and tear. It can cause some unpredictable phenomena such as mode splitting, ode localization and dramatic difference in forced vibration response. In this paper first, a method is presented which calculates he forced vib...
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Recently, a methodology allowing a stochastic nonlinear reduced-order model to be constructed in the context of the nonlinear mistuning induced by geometric nonlinearities has been proposed. The present work is devoted to an industrial application for which the centrifugal stiffening due to rotational effects is also included. The nonlinear mistuned forced response is investigated in the time-d...
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In this paper, a novel modeling methodology for the nonlinear vibration analysis of multi-stage bladed disk systems with small blade-to-blade mistuning and a cracked blade is proposed. The modeling strategy is based on an e cient stage-wise reduced order modeling method based on cyclic-symmetry analysis and component mode synthesis. Reduced order models are constructed for individual stages and...
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ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
سال: 2008
ISSN: 0387-5024,1884-8354
DOI: 10.1299/kikaic.74.1381