Free vibrations of the cantilever blades and shrouded bladed discs of the gas turbine

机译：燃气轮机的悬臂叶片和带罩叶片盘的自由振动

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The failure of the rotor blades in a gas turbine was reported. The global rotating mode shapes of flexible shrouded bladed disc assemblies are calculated by using a finite element approach. Rotational effects, such as centrifugal stiffening are accounted for, and all the possible couplings between the flexible parts are allowed. The spin softening effects are neglected. The dynamic analyze of the shrouded bladed disc shows that the bladed disc was designed with the sufficient safety region of the resonance. In case of one blade getting loose, this blade is vibrating in resonance.

机译：据报道，燃气轮机中的转子叶片出现故障。挠性带叶片叶片盘组件的整体旋转模式形状是通过使用有限元方法计算的。考虑到旋转效应，例如离心加强，并且允许在挠性部件之间进行所有可能的联接。忽略自旋软化效果。笼罩式叶片盘的动态分析表明，叶片盘的设计具有足够的共振安全区域。如果一个刀片松动，则该刀片会共振。

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来源
《SSTA(Shell Structures: Theory and Applications) Conference; 20051012-14; Jurata(PL)》|2005年|P.423-427|共5页
会议地点 Jurata(PL)
作者
R. Rzadkowski; L. Kwapisz; M. Drewczynski; R. Szczepanik;
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作者单位

Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdansk, Poland;

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原文格式 PDF
正文语种 eng
中图分类薄壳结构;
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1. Vibration Characteristics of Turbine Blades Grouped by Shroud Band (1st Report, Effect of Longitudinal and Bending Flexibility of Shroud Band on Tangential Flexural Vibration) [J] . Tadashi MIYAGAWA 日本機械学会論文集. C編 . 1999,第635期

机译：护罩带分组的涡轮叶片的振动特性（第一篇报道，护罩带的纵向和弯曲挠性对切向弯曲振动的影响）
2. Casing Treatment and Blade-Tip Configuration Effects on Controlled Gas Turbine Blade Tip/Shroud Rubs at Engine Conditions [J] . Corso Padova, Michael G. Dunn, Jeffery Barton, Journal of turbomachinery . 2011,第1期

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3. Metallurgy of gas turbine blades with integral shroud and its influence on blades performance [J] . Z. Mazur, C. Marifio, J. Kubiak Revista de Metalurgia . 1999,第1期

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4. Free vibrations of the cantilever blades and shrouded bladed discs of the gas turbine [C] . R. Rzadkowski, L. Kwapisz, M. Drewczynski, Shell Structures: Theory and Applications Conference . 2006

机译：悬臂刀片的自由振动和燃气轮机的笼罩叶片
5. Three-Dimensional Finite Element Analysis of Rotors in Gas Turbines, Steam Turbines and Axial Pumps Including Blade Vibrations [D] . Chaudhry, Jawad Altaf 2011

机译：燃气轮机，蒸汽轮机和轴流泵中包括叶片振动的转子的三维有限元分析
6. Synchronous Vibration Measurements for Shrouded Blades Based on Fiber Optical Sensors with Lenses in a Steam Turbine [O] . Dechao Ye, Fajie Duan, Jiajia Jiang, 2019

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7. Vibration Characteristics of Turbine Blades Grouped by Shroud Band. 1st Report. Effect of Longitudinal and Bending Flexibility of Shroud Band on Tangential Flexural Vibration. [O] . Tadashi MIYAGAWA 1999

机译：护罩带分组的涡轮叶片的振动特性。第一个报告。纵向和弯曲柔韧性对压力臂对切向弯曲振动的影响。
8. EXPERIMENTAL INVESTIGATION OF THE VIBRATION CHARACTERISTICS OF FOUR DESIGNS OF TURBINE BLADES AND OF THE EFFECT PRODUCED BY VARYING THE AXIAL SPACING BETWEEN NOZZLE BLADES AND TURBINE BLADES [R] . W. C. Morgan, C. R. Morse 1952

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Free vibrations of the cantilever blades and shrouded bladed discs of the gas turbine

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