查询词典 bladed

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。

The perturbation methods are the common analyzing method for studying thevibratory response of the mistuned bladed disk, but different perturbation methodshave their own relying conditions on the system parameters. In this dissertation, threekey perturbation methods are studied for their application conditions. Their relyingconditions on the system parameters are summarized.

本文对三种常用摄动法的构造特点及其适用性进行了研究，总结了它们在分析失谐叶盘系统振动响应时对于系统参数的适用条件；针对自适应摄动法在分析失谐叶盘系统振动响应时，对于基系统模态的选择难以控制的问题，提出了一种模态自动选择法。

Features of forced response of the mistuned bladed disk under different system parameters like coupling degree, mistuning strength, viscous damping and non-linear friction strength were investigated.

研究失谐叶盘系统在不同的耦合强度、失谐程度、粘性阻尼系数、干摩擦强度等系统参数影响下的受迫响应特性。

Theeffects of mistuning on the forced response are also analyzed in the frequency veeringregion. The outcomes of this dissertation improve the fundamental theories of thevibration localization of the mistuned bladed disk.

研究表明：在频率转向区中，叶盘系统模态高度密集，从而更容易导致叶盘系统产生较强的模态振型和振动响应的局部化。

They can be a support for thedesigner to look insight of the vibration mechanism of the mistuned bladed disk, andto predict its forced response. Therefore, the researches of this dissertation canprovide fundamental theories for studying and designing the power systems of thenew high performance aero-engines.

本文的研究结论，不仅在很大程度上完善和发展了研究失谐叶盘系统振动局部化问题的基础理论，也为设计人员正确理解失谐叶盘系统的振动机理及准确预测其振动响应提供了有效的方法和手段：并为进一步研制高性能的叶盘动力系统打下了理论基础。

The deterministic and statistic methods are employed respectively to study theforced response of the mistuned bladed disk under various system parameters withrespect to the deterministic and random mistuning. In the statistic analysis, wepropose a method that calculates and compares the statistics of the maximum andaverage vibratory responses.

在进行统计分析时，特别地提出了对失谐叶盘系统的最大振动响应和平均振动响应进行统计和比较的分析方法，利用该方法可对失谐叶盘系统振动能量的集中程度进行分析，从而更全面地认识失谐叶盘系统振动响应的局部化特性。

This method employs apartial-entire-combined mistuning model to predict the vibratory response of amistuned bladed disk.

同时，提出了一种合理的误差修正方法来进一步提高求解精度。

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。

The investigations focus on the fundamentalphysics and solution methods of the effects of mistuning on the natural properties andforced response of the bladed disks.

重点研究了失谐对叶盘系统固有特性与受迫振动响应特性影响的基本机理及分析方法，并总结了失谐对叶盘系统动力特性影响的一般规律。

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。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。