查询词典 frequency curve

Then gives out an optimised convergent algorithm and describes the system robustness by a closed curve on frequency domain, in which all possibte frequency responses.

提出一种计算过程可以迭代循环的最优收敛算法，并在频域复平面上给出描述系统鲁棒性的包络曲线，所有可能的、随系统不确定性而变化的频率响应都落在该曲线所包围的闭域内。

From this experiment, frequency response function could be found, and modal parameter also could be known by curve fitting, then compared with the differences of mode shape and natural frequency by using those modal parameters, also compared with finite element analysis, the results could be applied to detect the structure of beams and prevent it from damage and corrode for the safety in the future.

将实验中三种驱动器搭配加速度计实验分析结果较佳的一组方法，来从事结构之非破坏检测，探讨当固定梁有缺陷产生时，其结构之自然频率与模态振型的变化，并比较其不同缺陷处之固定梁实验模态结果，将来可应用於梁结构物损坏或腐蚀时侦测其安全性之分析。

And the frequency response function curve and preceding 10 modes frequency are obtained.

得到频响函数曲线及前10阶模态频率。

Based on this theory,and combined with Fourier transform frequency spectrum analysis and curve fitting ,the formula and arithmetic of equivalent mainfrequency for the frequency conversion measurement are derived.

本文正是基于这种变频法的思想，结合傅立叶变换频谱分析法和曲线拟合方法推导了介质损耗参数的工频等效计算公式和算法。

The resonant points of frequency response curve at different frequency represent different information of winding deformation.

由于不同频率段反映的变形信息不同，因此将频率段按照谐振点个数平均划分为三个区段。

Loser here is the frequency spectrum of the distribution curve, complex oscillation amplitude is decomposed into different frequency and different harmonic oscillation, the oscillation amplitude harmonic frequencies arranged in accordance with the graphics is called the spectrum.

在这里输频谱就是频率的分布曲线，复杂振荡分解为振幅不同和频率不同的谐振荡，这些谐振荡的幅值按频率排列的的图形叫做频谱。

In case of defining the probability distribution curve, the hydrological frequency computation is to estimate the parameters of the curve from the observed series.

在概率分布线型确定下，水文频率计算就是根据样本资料估算其中包含的参数。

Different from the routine trapeziform curve of frequency converting speed system, the motor's speed was adjusted according to exponential curve , and soft braking was realized by detent unit contained in the power module, enhancing the fluency and stability when running.

自动门的运行速度曲线与常用的梯形变频调速曲线不同，采用S形曲线对电机进行调速控制，以及采用自带缓冲制动单元的功率模块实现柔性制动，增强了自动门运行的稳定性和平滑性。

The surface roughness of the laser shock peened medium has effect on the high frequency of laser-generated surface acoustic waves. As the impact times of the laser shock peening increase, the surface roughness has little effect on the dispersion of laser-generated surface acoustic waves. From the theoretical curve and experiment curve, it can ...

本文研究的结果，可对研究样品激光冲击硬化后残余应力、晶粒方向改变和错位密度增加分别对激光声表面波色散影响提供了基础，并对利用激光声表面波的色散特性来研究激光冲击硬化材料冲击层材料性质的变化具有一定的意义。

Over a special range of parameters, the chaotic feature of the system with clearance joint is shown to exist by time domain curve, frequency domain curve or Poincare map and so on. Moreover the kinds of routes to chaos are found as the clearance size or crank speed change.

用多种方法证明了此类机构满足一定条件时存在混沌运动；并以机构运行时间、间隙大小、曲柄转速等作为控制参数，分析了机构周期运动和混沌运动之间的转化路径。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。