کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
510451 865766 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling and analysis of multi-stage systems of mistuned bladed disks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Modelling and analysis of multi-stage systems of mistuned bladed disks
چکیده انگلیسی

A stochastic reduced-order modelling technique for multi-stage mistuned bladed disks assemblies is proposed. In a perturbation framework, the base-line reduced-order model is built using multi-stage cyclic symmetry modelling approach. Uncertainties are introduced in the modal space at the component level and further propagated in the global modal space. This results in a compact model suitable for statistical analyses based on Monte-Carlo simulations.Applications highlight the numerically efficiency of the proposed approach which features good correlation and convergence both from deterministic and probabilistic points of view. Statistical investigations on the forced response amplification show effects of multi-stage coupling on mistuning sensitivity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 89, Issues 3–4, February 2011, Pages 316–324
نویسندگان
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