振动方面的专业英语及词汇.doc

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1、振动方面的专业英语及词汇1振动信号的时域、频域描述振动过程(VibrationProcess)简谐振动(HarmonicVibration)周期振动(PeriodicVibration)准周期振动(Ouasi-periodicVibration)瞬态过程(TransientProcess)随机振动过程(RandomVibrationProcess)各态历经过程(ErgodicProcess)确定性过程(DeterministicProcess)振幅(Amplitude)相位(Phase)初相位(Initial

2、Phase)频率(Frequency)角频率(AngularFrequency)周期(Period)复数振动(ComplexVibration)复数振幅(ComplexAmplitude)峰值(Peak-value)平均绝对值(AverageAbsoluteValue)有效值(EffectiveValue，RMSValue)均值(MeanValue，AverageValue)傅里叶级数(FS，FourierSeries)傅里叶变换(FT，FourierTransform)傅里叶逆变换(IFT，InverseF

3、ourierTransform)离散谱(DiscreteSpectrum)连续谱(ContinuousSpectrum)傅里叶谱(FourierSpectrum)线性谱(LinearSpectrum)幅值谱(AmplitudeSpectrum)相位谱(PhaseSpectrum)均方值(MeanSquareValue)方差(Variance)协方差(Covariance)自协方差函数(Auto-covarianceFunction)互协方差函数(Cross-covarianceFunction)自相关函数(A

4、uto-correlationFunction)互相关函数(Cross-correlationFunction)标准偏差(StandardDeviation)相对标准偏差(RelativeStandardDeviation)概率(Probability)概率分布(ProbabilityDistribution)高斯概率分布(GaussianProbabilityDistribution)概率密度(ProbabilityDensity)集合平均(EnsembleAverage)时间平均(TimeAverage)

5、功率谱密度(PSD，PowerSpectrumDensity)自功率谱密度(Auto-spectralDensity)互功率谱密度(Cross-spectralDensity)均方根谱密度(RMSSpectralDensity)能量谱密度(ESD，EnergySpectrumDensity)相干函数(CoherenceFunction)帕斯瓦尔定理(Parseval''''sTheorem)维纳，辛钦公式(Wiener-KhinchinFormula2振动系统的固有特性、激励与响应振动系统(Vibration

6、System)激励(Excitation)响应(Response)单自由度系统(SingleDegree-Of-FreedomSystem)多自由度系统(Multi-Degree-Of-FreedomSystem)离散化系统(DiscreteSystem)连续体系统(ContinuousSystem)刚度系数(StiffnessCoefficient)自由振动(FreeVibration)自由响应(FreeResponse)强迫振动(ForcedVibration)强迫响应(ForcedResponse)初始

7、条件(InitialCondition)固有频率(NaturalFrequency)阻尼比(DampingRatio)衰减指数(DampingExponent)阻尼固有频率(DampedNaturalFrequency)对数减幅系数(LogarithmicDecrement)主频率(PrincipalFrequency)无阻尼模态频率(UndampedModalFrequency)模态(Mode)主振动(PrincipalVibration)振型(ModeShape)振型矢量(VectorOfModeShap

8、e)模态矢量(ModalVector)正交性(Orthogonality)展开定理(ExpansionTheorem)主质量(PrincipalMass)模态质量(ModalMass)主刚度(PrincipalStiffness)模态刚度(ModalStiffness)正则化(Normalization)振型矩阵(MatrixOfModalShape)模态矩阵(ModalMatrix)主坐标(Pri