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失调叶片-轮盘系统
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  “失调叶片-轮盘系统”译为未确定词的双语例句
     Vibration Analysis of Mistuned Bladed Disc of Steam Turbine
     失调叶片-轮盘系统耦合振动分析
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  相似匹配句对
     Vibration Analysis of Mistuned Bladed Disc of Steam Turbine
     失调叶片-轮盘系统耦合振动分析
短句来源
     DIRECT PREDICTION OF THE EFFECTS OF MISTUNING ON VIBRATION OF BLADED DISK ASSEMBLIES
     失调叶片-轮盘耦合系统振动影响的预测
短句来源
     FUNDAMENTAL FREQUENCIES OF BLADE-DISC SYSTEM WITH ROOT DIMENSION MISMATCH AND MISTUNING
     考虑叶根制造误差和失调影响的叶片-轮盘系统固有频率分析
     VIBRATION OF BLADE-DISC SYSTEM OF STEAM TURBINE
     汽轮机叶片轮盘系统耦合振动分析
     The results indicated that the centrifugal force reduces the localization;
     结果表明,离心力对失调叶片轮盘系统局部化振动有减弱作用;
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Cyclic symmetry in bladed disc is often destroyed by difference in blade structural properties and this results in mistuning.The effect of centrifugal force on the mistuning of bladed disc was investigated by three dimensional finite element analyses.Vibration characteristics of mistuned bladed disc caused by random Young's moduli in all blades were also investigated by probability method.The results indicate that the cen- trifugal force reduces the localization.As Young's moduli of blades are in the tolerance...

Cyclic symmetry in bladed disc is often destroyed by difference in blade structural properties and this results in mistuning.The effect of centrifugal force on the mistuning of bladed disc was investigated by three dimensional finite element analyses.Vibration characteristics of mistuned bladed disc caused by random Young's moduli in all blades were also investigated by probability method.The results indicate that the cen- trifugal force reduces the localization.As Young's moduli of blades are in the tolerance of 5%,the bladed disc can be treated as a cyclic symmetry structure.

为了研究失调叶片——轮盘系统振动特性,建立了某汽轮机失调叶片——轮盘的三维实体有限元模型,研究了离心力对失调叶片——轮盘系统振动的影响;利用概率分析方法,研究了所有叶片弹性模量在5%误差范围内随机失调叶片——轮盘振动情况.结果表明,离心力对失调叶片——轮盘系统局部化振动有减弱作用;所有叶片弹性模量在5%误差范围的随机失调系统,其固有频率与非失调相差很小,即失调叶盘系统可以按照循环对称结构进行模态分析.

>=A finite element model of a blade with fir shape root and its matched disc groove was constructed and then analyzed by taking account of large deformation of the blade and contact nonlinear in the root; the effect of centrifugal force to the mistuned blade-disc was investigated by three dimensional finite element analyses; the vibration characters of random mistuned blade-disc were also being investigated by probability methods. The results show that locations of the errors have significant influence on fundamental...

>=A finite element model of a blade with fir shape root and its matched disc groove was constructed and then analyzed by taking account of large deformation of the blade and contact nonlinear in the root; the effect of centrifugal force to the mistuned blade-disc was investigated by three dimensional finite element analyses; the vibration characters of random mistuned blade-disc were also being investigated by probability methods. The results show that locations of the errors have significant influence on fundamental frequencies especially for bending modes of the blade. Magnitude of the error has almost no influence on frequencies. The centrifugal force reduces the localization; when the Young's modulus of all blades is in the tolerance of 5%, the blade-disc can regarded as a cyclic symmetry system.

考虑叶片变形的几何非线性和叶根接触非线性,研究了常用的枞树型叶根尺寸误差对叶片固有频率的影响;利用预应力分析方法研究离心力对失调叶片-轮盘系统振动的影响;利用概率分析方法,研究了所有叶片弹性模量在 5%误差范围内随机失调叶片-轮盘振动情况。分析结果表明叶根误差发生的位置对叶片弯曲振型的固有频率影响较大, 对扭转振型影响较小,误差的大小对叶片各阶固有频率影响均较小;离心力对失调叶片轮盘系统局部化振动有减弱作用;所有叶片弹性模量在5%误差范围的随机失调系统,其固有频率与非失调相差很小。

 
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