Advanced modeling of underplatform friction dampers for analysis of bladed disk vibration

Petrov, E P and Ewins, D J (2007) Advanced modeling of underplatform friction dampers for analysis of bladed disk vibration. Journal of Turbomachinery, 129 (1). pp. 143-150. ISSN 0889-504X

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Abstract

Advanced structural dynamic models for both wedge and split underplatform dampers have been developed. The new damper models take into account inertia forces and the effects of normal load variation on stick-slip transitions at the contact interfaces. The damper models are formulated for the general case of multiharmonic forced response analysis. An approach for using the new damper models in the dynamic analysis of large-scale finite element models of bladed disks is proposed and realized. Numerical investigations of bladed disks are performed to demonstrate the capabilities of the new models and an analysis of the influence of the damper parameters on the forced response of bladed disks is made

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TJ Mechanical engineering and machinery
Depositing User: Yevgen Petrov
Date Deposited: 26 Nov 2012 14:14
Last Modified: 26 Nov 2012 14:14
URI: http://sro.sussex.ac.uk/id/eprint/43023
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