提出一种利用柔性结构的固有振动模态特性的振翼原理。
Making use of modal characteristics of the natural vibration of flexible structure to design the oscillating wing aircraft is proposed.
针对某125摩托车局部振动比较严重，采用有限元分析软件ANSYS，对该款车架进行了结构模态分析，得到车架固有频率和振型。
In view of the locally severe vibration of a 125 motorcycle, the paper makes a structure modal analysis with ANSYS to get the natural frequency and the vibration mode of the frame.
应用模态识别技术对某轻型客车动力总成弯曲振动的固有特性进行了测试，设计了一阻尼式动力吸振器。
After testing the intrinsic characteristic of power assemblys flexural vibration of a light passenger coach with modal cognition technology, a damping power shock absorber is designed.
模态分析用于确定设计中的结构及其部件的振动特性，包括结构的固有频率和振型。
Modal analysis is used to determine the vibration characteristic of a structure and its components, including the natural frequencies and vibration modes of the structure.
振动信号被分解为一系列固有模态函数。
The vibration signal is decomposed into a sum of intrinsic mode functions.
本文根据原型振动实测的位移记录，应用时间域识别法，求得了结构的前几阶模态的固有频率和阻尼比。
Some modal natural frequencies and damping coefficients of a structure are derived by means of in-sita testing displacement records and the time domain identification technique.
结论是：随着节子个数的增加，木材振动模态的阻尼比增大，而其固有频率减小。
The conclusion is that the damping ratio will increase, and the nature frequency will decrease along with the number of knots mounting up.
对透平机械常用的叶轮的固有振动问题给出了一种试验与计算相结合求取其精确振动模态函数的方法。
This paper gives a method of combining experiment with theoretical calculus, which can be used to obtain the precious vibration mode functions of disk bladed of turbine machinery.
模态是结构的固有振动特性，每一阶模态都具有特定的固有频率、阻尼比、振型、模态刚度和模态质量。
Mode is structure's inherence characteristics, each mode has specifically resonant frequencies, damping values, mode shapes, mode stiffness and mode mass.
分析了壳体的固有模态、激励力和声辐射三者之间的关系，这为用主动控制方法降低有限长加筋双层圆柱壳的振动噪声，提供了理论依据。
The vibration and sound radiation from a finite stiffened double cylindrical shell driven by a point force on the shell surface in the radial direction are studied in this paper.
本文采用改进的自由界面模态综合法计算汽轮机叶片组的固有振动。
In this paper, the improved free-interface coupling method is adopted for dyna - mic analysis of blade groups.
通过对白车身的模态分析，获得了车身结构固有的振动特性，并找出了车身结构在动态激励时的薄弱环节。
By the results of modal analysis of the body in-white, the body's natural dynamic features are got in the paper, and located some weakness of the structure.
准确计算定子模态和固有频率是降低电机噪声和振动的基础。
Calculation of the stator modal frequencies of an electrical machine accurately is the base of reducing acoustic noise and vibration.
对发电机定子绕组端部固有频率的测试及模态试验分析作了简要的介绍，对端部绕组振动的在线监测作了简要分析，同时提出了一些个人看法。
The inherent frequency and modal testing about end winding of generator stator are introduced, the vibration of end winding on-line monitoring is analyzed, a personal point of view is introduced.
并用此方法测量了双线性振动陀螺的固有频率、品质因子、—阶模态振型和杨氏模量。
The natural frequency, quality factor, first mode of fold beam and Young's modulus of the double linear vibratory gyroscope were measured by the new setup.
当壳体的经线有折角时，我们采用模态综合法分析它的固有振动特性。
If there exists a discontinuity in the meridian for a rotational shell, we use the modal synthesis method to analyse the free vibration of this kind of shell.
依据设计原则，利用模态刚度矩阵、模态质量矩阵和模态频率相似进行了扭振模拟机轴系的设计，扭振模拟机轴系前三阶固有特性与实际机组轴系扭振动特性基本一致。
By modal stiffness matrix, modal mass matrix and modal frequency, shaft units of simulator is designed. The former three steps natural characteristics are identical with the real units'.
对发电机定子绕组端部固有频率的测试及模态试验分析作了简要的介绍 ，对端部绕组振动的在线监测作了简要分析 ，同时提出了一些个人看法。
This paper introduces a relaxed damage of a Large Generator Stator, measurement and analysis of the mode of the end winding, good suggests on preventive measures of resonant vibration are given.
的固有频率，阻尼比，模态振型，最大位移和破坏财产的系统进行了计算和分析的基础上的振动台试验。
The natural frequency, damping ratio, mode shapes, maximum displacement and failure property of the system were calculated and analyzed based on shaking table test.
本文研究一个两跨板状简单模型在不可压缩流中振动时的固有动特性。 应用假设模态法建立系统的运动微分方程。
The dynamical characteristics of a simple two-span parallel flat plate-type model vibrating in incompressible water are studied here.
采用有限元分析软件ANSYS建立了BLDCM的二维和三维定子振动的有限元分析模型，研究了BLDCM定子结构和参数对其振动模态和固有频率的影响。
This paper constructs several 2d and 3d finite element analysis models with ANSYS, studies the influence of the structure and parameters of BLDCM on vibration mode and natural frequency.
模态分析不仅提供了一种计算固有频率的方法，也可为研究高速加工系统的振动提供参考。
Modal analysis not only offers a good ways which can calculate natural vibration frequencies, but also brings forward wholesome advices for researching vibration of high speed cutting system.
模态分析不仅提供了一种计算固有频率的方法，也可为研究高速加工系统的振动提供参考。
Modal analysis not only offers a good ways which can calculate natural vibration frequencies, but also brings forward wholesome advices for researching vibration of high speed cutting system.
应用推荐