失谐

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。

This paper presented a method for robustness investigation of mistuning identification of disks by taking free response parameters as input information.

为有效运用整体叶盘结构失谐识别技术，针对一种以模态信息作为输入参数的识别方法进行了鲁棒性方面的研究。

These variations, which arereferred to mistuning, mainly come from the blade procession, wear in service, etc.

失谐主要来自于叶片的加工误差、运行磨损等。

IEC standard [1] discusses together with passive filter and parallel capacitor because the filter has compensation function regardless of its tuning and mistuning.

IEC标准[1]将无源滤波器和并联电容器的应用搁在一起讨论，因为滤波器无论失谐或调谐也都有补偿功能。

The results demonstrate that the proposed multi-harmonic method is very efficient for studying the mistuning effects on the resonant response of bladed disks with blade-to-blade dry friction damping, especially considering the combined effects of various system parameters.

结果表明，提出的多谐波分析法能够高效地研究失谐对带有叶间干摩擦阻尼的叶盘系统共振响应的影响特征，尤其适合考虑各种系统参数的综合影响。

An efficient multi-harmonic method is proposed for studying the effects of mistuning on resonant features of bladed disks with blade-to-blade dry friction damping.

贺尔铭 ，王红建提出一种高效的多谐波分析方法，以用于研究失谐对带有叶间干摩擦阻尼的叶盘系统共振特性的影响规律。

The mistuning can lead to the localization of vibratory energy of a bladed disk,increase the vibratory stress in the resonant region, and even result in the high cyclicfatigue failure.

叶片失谐能够导致叶盘振动能量局部化，并显著增加叶片在共振区的振动应力，甚至使叶盘产生高周循环疲劳失效，造成灾难性后果。

Based on the instability criterion of semi-classical Maxwell -Bloch equations of single-mode optical systems, the global distribution of instability region is depicted in A-6 parameter space (△ detuning of the atoms,θ mistuning of the cavity).

本文艰据半经典Maxwell一Bloeh方程单模光学双稳系统的稳定性判据，在△一日参数平面上描绘该系统不稳定区的整体分布(这里△和日分别正比于原子与腔相对输入场的失谐度)。

There should be cents offsets for several partials and an inharmonicity constant displayed.

结果中以音分显示每个分音的偏差值，及一个失谐度常数。

So it is very important to analyze the propagation characteristics of vibration and energy in disordered periodic structures, which can provide theoretical bases for the vibration control and vibration reduction of substructures.

因此分析失谐周期结构中振动和能量的传播方式与规律具有重要的理论与实际意义，可以为重要子结构的振动控制和减振设计提供理论依据。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。