In this paper, a simulation method is proposed for a sub-category of compressor vanes showing nonlinear behavior due to an adjustable upstream flow angle. The proposed algorithm computes the forced response of a single vane based on the New-mark time stepping scheme after reducing the structural matrices using the Craig-Bampton method. The contacts are modeled by Coulomb friction and Newton impact constraints. Contact forces are determined using linear complementarity conditions with decoupled orthogonal friction force directions. Different discretization methods for the cylindrical contact partners are proposed. Finally, numerical results are shown in order to validate the proposed algorithms.
Modeling Contact Dynamics of Vanes With Adjustable Upstream Flow Angles
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Schurzig, D, Tatzko, S, Panning-von Scheidt, L, & Wallaschek, J. "Modeling Contact Dynamics of Vanes With Adjustable Upstream Flow Angles." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Volume 7: Structures and Dynamics, Parts A and B. Copenhagen, Denmark. June 11–15, 2012. pp. 1169-1179. ASME. https://doi.org/10.1115/GT2012-68185
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