查询词典 mistuned

The blades are modeled as cantilever beams fixed on the disk. The equations of motion of the system are derived. The eigenvectors are obtained by solving the eigenvalues of the system and the localized modes of vibration in mistuned systems are further gotten.

采用固定在轮盘上的悬臂梁模型来模拟叶片，推导了结构系统的运动方程表达式，求解特征值问题获得了结构系统的特征向量，进而得到了失谐结构的局部化的振动模态。

There appears to have been a mistuned standing.

看上去好象已经有了误会。

The mistuned coupling strength between shrouds and the mistuned natural frequency of blade are considered to distribute normally.

叶冠间的耦合参数以及叶片的一阶频率参数被设为服从正态分布。

In this dissertation, the vibration localization problem of the mistuned bladeddisk with complicated coupling is systematically investigated through the mass-stringmodels and the finite element model.

本论文建立了失谐叶盘系统的质量—弹簧模型和有限元模型，对复杂耦合失谐叶片—轮盘系统的振动局部化问题进行了较为系统的研究。

Meanwhile, the localization factors in tuned and mistuned periodic ribstiffened plates are respectively computed and the effect of the degree of disorder of span-length and the structural parameters of the rib on the localization of elastic waves is analyzed and discussed.

同时，计算了谐和与失谐周期肋板结构中的局部化因子，并分析讨论了跨长的失谐程度以及加强肋的结构参数对弹性波局部化的影响。

Simulations of forced response of mistuned bladed disks with non-linear dry friction damping were performed.

摘要基于谐波平衡法，提出一种可用于分析含有非线性摩擦阻尼叶盘振动响应的多谐波法，对含有非线性干摩擦阻尼的失谐叶盘系统的受迫响应进行仿真计算。

The resonant features of both tuned and mistuned systems are investigated by using this method under various system coupling strengths, viscous dampings, and dry friction dampings, etc.

利用该方法对带有叶间干摩擦阻尼的叶盘受迫振动响应进行了仿真计算，分析了叶盘系统在谐调和失谐两种情况下受耦合强度、黏性阻尼和干摩擦阻尼等系统参数影响下的共振特性。

The effects of frequency veering features on mode localization of the mistuned system were analyzed with L. It is shown that the distance between the frequency veering curves at nodal diameters is a key parameter, and it exists a minimum value for the parameter, around which blade modes are very sensitive to mistuning, and can result in dramatic fluctuation of the mode localization degree.

研究表明，频率转向曲线之间关于节径的最小间隙是反映频率转向特征的重要参数，并存在一个转向频率间隙的极小值点，在该极值点附近，频率转向区内的模态对叶片失谐非常敏感，并会导致模态局部化程度剧烈变化。

Based on mass-spring model, a method of automatic mode-selecting method is presented to solve the difficulties of selecting corresponding modes close to the excitation frequency, in adaptive perturbation for mistuned bladed disks.

摘要针对自适应摄动法在失谐叶盘受迫振动分析中，选择接近激振力频率的相应模态数目难于控制的问题，基于质量－弹簧模型，提出一种自动选择模态的方法。

Based on a non-linear model of cyclic 2 DOF substructure of shrouded blisk , the natural frequency and forced response of a mistuned shrouded blisk have been studied by using a statistic theory. The mistuned coupling strength between shrouds has been specially studied.

李琳基于带冠叶盘的二维子结构循环非线性力学模型，用概率统计的方法讨论了带冠叶盘系统的非谐调对其固有特性以及受迫响应特性的影响，重点研究了叶冠间非谐调耦合程度的影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷