提出了用幂基多项式拟合频响函数的几点技巧。
Several techniques are set forth in the paper for the frequency response functions (FRFs) fitting by ordinary power polynomials.
对于连续突风，由频响函数求得响应的功率谱密度。
The approach of continuous gust response was based on the calculation of the power spectral density.
实测桩顶响应信号是振源与系统频响函数的时域卷积。
The tested signal on pile head is the convolution of the vibration resource and frequency response function of itself in domain of time.
无论如何，测得的频响函数必将受到窗函数和泄漏的影响。
In any event, the measured frequency response function will be affected by the window and leakage that does result.
第二章提出基于频响函数和遗传算法的结构损伤识别方法。
In the second chapter, the structures damage identification methods based on FRF and GA is presented.
本文建立了粘弹阻尼结构频响函数计算的高精度模态展开法。
An accurate modal superposition method for calculating frequency response function of viscoelastically damped structures is put forward.
那么现在我们来看一看频响函数，并讨论这个频响的不同部分。
So now let's look at the frequency response function and discuss the different parts of this function.
这是利用随机激励进行测量的频响函数中可以看到的典型影响。
This is a typical effect seen in frequency response functions measured using random excitation.
建立了静压气体球轴承气膜位移-动态力频响函数的数学模型。
Equivalent mathematical model of frequency response function for externally pressurized spherical gas bearing with inherent compensation was built.
本文采用频响函数矩阵求逆法，辨识了立式机组动态力的幅值谱。
By using inverse matrix of frequency response function in this paper, the spectrum of dynamic forces acting on the set has been identified.
然后根据里兹法，得到结构精确综合的频域运动方程与频响函数；
The exact synthesis equation of motion in frequency domain and frequency-response functions for structural vibration were obtained according to the Ritz procedure.
文中对弹性车轮踏面、轮缘激励下的速度频响函数进行了理论分析。
The paper makes a theoretical analysis of the speed frequency response function excited by the tread and flange of the resilient wheel.
但是对于种情况，我们可以利用频响函数矩阵的某种冗余性来帮忙。
However, we can use some of the redundancy in the frequency response matrix to help with this situation.
本文介绍这种系统的频响函数测量和在随机激励下的平均线性化方法。
This paper "described the measurement of frequency response function (FRF) of this system and the average linearization method under random exciting condition."
以有限富氏变换为基础，研究多输入-多输出频响函数估计的一般原理。
The theory of multiple input-output frequency response functions estimation is studied based on the finite Fourier transform.
针对该问题，提出一种基于频响函数左矩阵分式模型的模态参数识别方法。
Focusing on this problem, a modal parameters identification algorithm based on left matrix fraction description of FRF was proposed.
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。
In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.
对现役钻机底座做了现场振动测试，得到频响函数曲线及前10阶模态频率。
On-site vibration test of the servicing rig substructure is made, and the frequency response function curve and preceding 10 modes frequency are obtained.
我们必须记住对于任意一个感兴趣的输入输出组合，都可以写出这个频响函数。
We must remember that this frequency response function can be written for any one of the input-output combinations of interest.
基于模态展开和幂级数展开原理，提出了一种频响函数灵敏度分析的模态展开法。
Based on the theory of modal superposition and power series expansion, a modal superposition method for the sensitivity analysis of FRF is proposed in this paper.
基于频响函数的结构有限元模型修正技术是当前结构动力学领域的重要研究方向之一。
Structure finite element model updating technology based on the frequency response function is one of the most important directions in current structure dynamics research.
文章提出了一种利用模态参数和由振动试验数据求得的频响函数来进行模型修正的方法。
This paper presents a synthesized model updating method using the modal parameters and frequency response functions(FRF) extracted from the vibration test data.
利用优化逆系统求解驱动信号，避开了传统控制方法中直接对频响函数矩阵求逆的过程。
The optimal inverse system method is used for generating the driving signals instead of inverse calculation to the system transfer matrix directly.
转子振动时其频响函数是其刚度和阻尼的函数，调节合适的刚度和阻尼，可以抑制转子振动。
The frequency response function was a function of stiffness and damping when a rotor vibrated, so a proper adjustment of stiffness and damping could reduce the vibration amplitude.
最重要的一点要注意，频响函数作为滤波器，作用在输入激振力上，这样得到了某种输出响应。
The most important thing to note is that the frequency response function ACTS as a filter on the input force which results in some output response.
本文提出用多点频响函数来识别系统的复模态参数，建立了系统加权平均传递函数的假设模型。
This paper offers an assumed model called system weighted Average Tranafer Function of a linear vibration system to identify the complex modal parameters by using multi-point measured frequency data.
结果表明：频响函数的曲率对损伤非常敏感，不仅反映出了损伤位置，而且能够表示损伤程度。
Results show that curvature of the FRF is very sensitive to the damage and can be used as an excellent indicator.
对一拉索结构的正常状态及两种损伤状态进行了模态测试，用频响函数的曲率来进行损伤检测。
Modal test was done on a cable-stayed structure in its healthy and two damaged conditions. Curvature of the Frequency Response Function (FRF) was used to detect the location of damage.
利用频响函数识别复频率模态质量存在着严重的数值计算不稳定性，给物理参数的识别造成困难。
The severe numerical instability in complex frequency modal mass identification from frequency response function makes it difficult to identify physical parameters.
本讲义的重点，是说明频响函数（FRF）测量结果是如何与结构模态振型和振动频率建立联系的。
The major point of the text is to show how frequency responsefunction (FRF) measurements are related to the structure's mode shapes and vibrational frequencies.
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