1.
By finite element analysis of circular conical shell, the natural frequencies and vibra-tional modes of Yongle Bell have been calculated.
本文通过旋转壳体的有限元方法,计算了永乐大钟的主要固有频率和振型。
2.
Modification of Modal Frequencies and Shapesby Using Additional Mass and Stiffness Technique
用附加质量和刚度修改结构固有频率与局部振型
3.
A Highly Stable and Accurate Computational Method for Eigensolutions in Structural Dynamics;
结构固有频率及其振型的高效稳定算法
4.
Study on Longitudinal Natural Frequency of Bended Metallicrod
弯曲金属杆中纵振动固有频率的研究
5.
Calculating natural frequency and vector of an oscillation system;
一类振动系统固有频率与固有向量的计算
6.
THE CALCULATION AND ANALYSIS OF ZEROORDER FREQUENCY OFHYDROGENERATOR RATOR UNDER TORSIONAL VIBERATION;
水轮发电机组转子轴系扭振零阶固有频率的计算和分析
7.
Solution to Natural Frequency of Longitudinal Vibration for a Nonuniform Nonhomogeneous Bar with Variable Cross Section by Finite Segments Method
有限段法解非均质变截面杆纵向振动固有频率
8.
FAST CALCULATION OF MODAL SHAPE AND FREQUENCY OF STRUCTURES USING MATHCAD
用Mathcad快速估算结构的振型和频率
9.
Inherent frequency and amplitude analysis of rotor axles on flat-hammer grinding mill
锤片式粉碎机转子轴组固有频率及振幅的分析
10.
Calculation of Natural Frequency of Torsional Vibrations for an Enclosed Disc Shaft System
封闭盘轴系统扭转振动固有频率的计算
11.
Study on Additional Water Mass s Influence in the Natural Frequency of Ship Hull s Overall Vibration;
附加水质量对船体总振动固有频率影响的研究
12.
Influence of Physical Parameters on Vibrating Natural Frequency of Pressure Pipeline;
物理参数对压力管道振动固有频率的影响
13.
Research on Vibration Rod Level Sensor's Natural Frequency Analysis and Test Method
振动式料位计固有频率分析及测试方法
14.
Natural frequency forecast of overall vibration for SWATH
小水线面双体船船体总振动固有频率预报研究
15.
Most are crystal oscillators that take advantage of the inherent resonance of a( quartz) crystal to obtain frequency stability.
大多数是晶体振荡器，它利用（英）体固有共振的优点，所以频率稳定。
16.
The results showed that the mount spacing can be varied to adjust the natural frequency of the rotational mode.
结果说明：改变隔振元件的间距能调整扭转振动的固有频率的大小。
17.
The frequency associated with the first mode is sometimes called the fundamental frequency.
和第一振模相联系的频率有时叫做基频。
18.
Equation (4-198) yields a first approximation for the change in the natural frequency of vibration.
方程（4－198）给出了一级近似下的固有振动频率的改变量。