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失谐叶片-轮盘结构
相关语句
  bladed disk assembles-a review
     Analytical Models of Mistuned Bladed Disk Assembles-A Review
     失谐叶片-轮盘结构振动局部化的分析模型
短句来源
  “失谐叶片-轮盘结构”译为未确定词的双语例句
     A STUDY ON LOCALIZATION OF VIBRATION MODE IN MISTUNED BLADED DISK ASSEMBLIES
     失谐叶片-轮盘结构振动模态局部化问题的研究
短句来源
     VIBRATORY LOCALIZATION OF MISTUNED BLADED DISK ASSEMBLIES ──A REVIEW
     失谐叶片-轮盘结构系统振动局部化问题的研究进展
短句来源
  相似匹配句对
     Analytical Models of Mistuned Bladed Disk Assembles-A Review
     失谐叶片-轮盘结构振动局部化的分析模型
短句来源
     Influence of Disorder on Vibration Characteristics of Bladed Disk Assemblies
     失谐叶片轮盘结构振动特性的影响
短句来源
     A STUDY ON LOCALIZATION OF VIBRATION MODE IN MISTUNED BLADED DISK ASSEMBLIES
     失谐叶片-轮盘结构振动模态局部化问题的研究
短句来源
     VIBRATORY LOCALIZATION OF MISTUNED BLADED DISK ASSEMBLIES ──A REVIEW
     失谐叶片-轮盘结构系统振动局部化问题的研究进展
短句来源
     The effects of magnitude of blade disorder and disk rotating speed on the vibration mode localization are analyzed.
     分析了叶片失谐量和轮盘的转速对结构振动模态局部化的影响。
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In this paper, the localization of vibration mode in mistimed bladed disk assemblies is presented. The blades are modeled as cantilever beams which are fixed on the disk. By using the Hamiltonian principle and the Galerkin's method, the equations of motion of the bladed disk assemblies are derived. Through transforming the equations of motion of the system into state equations, the eigenvalues of the system can be solved to obtain the eigenvectors. The paper illustrates by example the calculation of mode shapes...

In this paper, the localization of vibration mode in mistimed bladed disk assemblies is presented. The blades are modeled as cantilever beams which are fixed on the disk. By using the Hamiltonian principle and the Galerkin's method, the equations of motion of the bladed disk assemblies are derived. Through transforming the equations of motion of the system into state equations, the eigenvalues of the system can be solved to obtain the eigenvectors. The paper illustrates by example the calculation of mode shapes for a bladed disk assembly with 16 blades and the localization of vibration modes of the mistuned system. Meanwhile, the effects of magnitude of disorder of blade, rotating speed of disk and location radius of shrouds on the vibration mode localization are analyzed. The phenomenon of vibration mode localization can be observed in mistuned bladed disk assemblies. The dimensionless rotating speed has a great influence on the vibration mode localization, and the larger the degree of disorder, the larger the degree of localization.

该文对失谐叶片-轮盘结构系统的振动模态局部化问题进行了分析研究。将叶片模拟为固定在轮盘上的悬臂梁结构,采用Hamilton变分原理和Galerkin方法,导出了结构系统的运动方程表达式。将运动方程化为状态方程,求解本征值问题获得结构系统的特征向量解。作为算例,计算了一个具有16个叶片的叶片-轮盘结构系统的模态振型,得到了失谐结构的局部化的振动模态,同时分析了叶片的失谐量、轮盘的转速以及围带的位置半径对叶片振动 模态局部化的影响。失谐叶片-轮盘结构中存在振动模态的局部化现象,无量纲转速对振动模态局部化有很大影响,局部化程度随着叶片失谐量的增加而增强。

This paper aims to provide a review of the state of the art in the models for the vibratory localization of mistuned bladed disks. The models discussed include: (1) lumped parameter model, (2) continuous parameter model, (3) finite element model, and (4) dynamic substructure model etc. The principle and application of these models are explained carefully. Finally, the further researched problems are shown.

叶片-轮盘结构失谐导致结构振动局部化和周期性丧失,使结构分析和研究过程对结构振动的分析模型提出了特殊的要求。对失谐叶片-轮盘结构分析模型的类型和特点进行了详细讨论。主要包括经典的分析模型,如集中参数模型、分布参数模型和有限元模型;传递函数模型,如直接传递函数模型和减缩传递函数模型;模态参数模型,如选择模态基模型、约束界面模态基模型和复合约束模态基模型等。最后提出了今后应深入研究的问题。

 
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