并在小型货车上对随机振动谱进行了实际测试。
The measurement of random vibration on light truck was carried out.
OH的伸缩振动谱带的水去卷积和高斯曲线拟合得到解决。
The OH stretching band of water has been resolved by deconvolution and Gaussian curve fitting.
振动谱图则是振动的体现形式之一,是机械运行状态的变化在振动信息中的反映。
The vibration spectrogram is one information form of the vibration and manifests the mechanical change of running status in the vibration information reflection.
用离散变量表示(DVR)方案研究了H2S基电子态两种特殊振动模式的振动谱。
The vibration spectra of two special patterns for H2S ground electronic state were studied by using discrete variable representation (DVR) scheme.
它适用于在噪声或振动谱上提取线谱特征和压缩数据量,是利用谱特征进行模式识别的有效预处理手段。
It can be applied to extract line spectra features and reduce the amount of data in noise and vibration spectra.
因此,显微拉曼光谱仪记录到的材料振动谱和荧光谱为珍珠的分析研究及日常鉴定提供了可靠的信息资料。
We conclude that the vibrational and fluorescent spectra of these pearly can provide reliable information for their study and identification.
在变切削参数的加工工况下,通过对振动信号的采集和频域处理,发现采用单一的自功率谱方法难以有效检测出刀片破损。
Through collecting vibration signal and analyzing it in the frequency domain in the condition of changing parameter cutting, a single self power spectrum is hard to detect tool breakage effectively.
通过测量车辆的振动加速度响应信号获取路面谱的方法具有很好的实用性。
The method of getting road response spectrum by measuring vehicle vibration acceleration response signals is practicable.
计算结果表明,只要有通过试验获得的轮胎在滚动过程中所受到的真实激励谱,利用本文的方法即可对轮胎的振动噪声进行预报。
Calculation results indicate that tire vibration and noise can be predicted with actual excitation spectrum from tests according to the method presented in the paper.
功率谱密度是评价流通环境过程中随机振动的有效工具。
Power spectral density is an effective tool to evaluate random vibration in circulation environment.
理论推导和实例结果表明,随机振动的声学响应特性取决于声学频率响应函数和激励谱密度函数。
The results show that acoustic response feature of random vibration depends on the acoustic response function and the spectral density function of the stimulating load.
爆破振动;损伤;功率谱;边坡;数值模拟。
Blasting Vibration; Injury; Power Spectrum; Slope; Numberical simulation.
对各种模型进行了振动频率计算,并应用反应谱法和时程分析法计算了其地震反应。
Computation of vibration frequency is carried out and seismic response is analyzed by use of response-spectrum method and time history method.
采用反应谱法,时程分析方法以及随机振动方法分析了拱桥在一维和多维地震激励下的地震响应。
Through spectrum analysis, time-marching analysis and radom vibration analysis, the seismic performance of arch bridge under one-dimension and multi-dimension excitation has been analyzed.
基于平稳随机振动理论,推导了一般阻尼结构体系反应谱组合方法,以满足大跨度桥梁等结构抗震设计的需要。
A spectral combination rule is proposed based on the theory of random vibration of structures for the need of aseismic design of Bridges, etc.
同质异构晶体的熔体拉曼谱都显示出相同的孤立负离子配位多面体振动峰。
The Raman spectra of both of isomeric crystal and its melt show the vibration mode of the same isolated anionic coordination polyhedron.
本文研究了非平稳随机振动信号的瞬时功率谱。
The instantaneous power spectrum of nonstationary random vibration signals is discussed in this paper.
采用多重分形改进算法提取往复压缩机振动信号的多重分形特征,得到了轴承故障的广义维数谱。
The multifractal features are extracted from the vibration signals of different spots on reciprocating compressor using the improving arithmetic, the general dimension spectrum of bearing.
建立了纵振动力学模型,阐述了纵振路面谱的表达形式及应用方法。
The expression format and application method of longitudinal vibration road spectrum were described.
根据不同的振动加速度功率谱,可以诊断出气缸壁间隙值以确定柴油机是否需要修理。
From the differences of the vibration acceleration signal power spectrum, the cylinder clearance can be diagnosed, so that whether the engine may be repaired or not can be determined.
针对自由衰减振动信号的连续谱,提出了一种估计特征参数的方法。
A new method of estimating characteristic parameters for continuous spectrum of response signal of damped free vibration is presented in this paper.
文中得到几个振动性准则和离散谱准则,并将这些结果应用到常微分方程。
Some oscillatory criteria and discrete spectrum criteria are given, and we can apply them to the ordinary differential equations.
然而,目前基于功率谱均衡的数字式随机振动控制系统只能产生高斯分布的随机振动激励信号。
However, the digital random vibration control systems currently based on power spectrum fitting can only generate random vibration exciting signals with Gaussian probability distribution.
以镜架支撑安装基面上实测的地面振动速度功率谱密度为激励,运用ANSYS有限元分析软件的PSD分析模块,对该结构系统的随机振动响应进行了分析计算。
The PSD measured on the install base level of the mount as the excitation, the random vibration response of the mount was analyzed with the PSD module of ANSYS.
对爆破地震的振动速度与爆破振动反应谱进行了分析和探讨,为解决工程爆破问题提供了参考意见。
This paper discusses the vibration velocity of blasting seism and the reaction chart of the blasting vibration, and offers some helpful Suggestions about solving engineering blasting problems.
传统的卫星振动测试由于采用加速度谱包络的方式获取振动台控制谱,导致了“过试验”的发生。
The over-testing problem is mainly caused by the traditional method in which the acceleration spectrum was enveloped and used as the control spectrum of the vibration table.
关于碳纳米管的声子谱及振动态密度的计算方法有好几种。
There was several kinds of methods to calculate carbon nanotube's phonon spectrum and the vibrate density of states.
结果表明,从振动能谱向转动能谱的过渡主要是由价核子数增加引起的。
The result shows that the transition from vibrational to rotational spectrum is mainly caused by the increase of valence nucleon number.
研究结果表明:外界振动会使谱图的线形变差、线宽增大和相位扰乱,从而降低谱图的分辨率。
It shows that external vibration will result in bad lineshape, large linewidth, and dispersive effect, thus reduce the spectral resolution.
研究结果表明:外界振动会使谱图的线形变差、线宽增大和相位扰乱,从而降低谱图的分辨率。
It shows that external vibration will result in bad lineshape, large linewidth, and dispersive effect, thus reduce the spectral resolution.
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