1 振动信号的时域、频域描述 |
振动过程 (Vibration Process) |
简谐振动 (Harmonic Vibration) |
周期振动 (Periodic Vibration) |
准周期振动 (Ouasi-periodic Vibration) |
瞬态过程 (Transient Process) |
随机振动过程 (Random Vibration Process) |
各态历经过程 (Ergodic Process) |
确定*过程 (Deterministic Process) |
振幅 (Amplitude) |
相位 (Phase) |
初相位 (Initial Phase) |
频率 (Frequency) |
角频率 (Angular Frequency) |
周期 (Period) |
复数振动 (Complex Vibration) |
复数振幅 (Complex Amplitude) |
峰值 (Peak-value) |
平均绝对值 (Average Absolute Value) |
有效值 (Effective Value,RMS Value) |
均值 (Mean Value,Average Value) |
傅里叶级数 (FS,Fourier Series) |
傅里叶变换 (FT,Fourier Transform) |
傅里叶逆变换 (IFT,Inverse Fourier Transform) |
离散谱 (Discrete Spectrum) |
连续谱 (Continuous Spectrum) |
傅里叶谱 (Fourier Spectrum) |
线*谱 (Linear Spectrum) |
幅值谱 (Amplitude Spectrum) |
相位谱 (Phase Spectrum)
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均方值 (Mean Square Value) |
方差 (Variance) |
协方差 (Covariance) |
自协方差函数 (Auto-covariance Function) |
互协方差函数 (Cross-covariance Function) |
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自相关函数 (Auto-correlation Function) |
互相关函数 (Cross-correlation Function) |
标准偏差 (Standard Deviation) |
相对标准偏差 (Relative Standard Deviation) |
概率 (Probability) |
概率分布 (Probability Distribution) |
高斯概率分布 (Gaussian Probability Distribution) |
概率密度 (Probability Density) |
集合平均 (Ensemble Average) |
时间平均 (Time Average) |
功率谱密度 (PSD,Power Spectrum Density) |
自功率谱密度 (Auto-spectral Density) |
互功率谱密度 (Cross-spectral Density) |
均方根谱密度 (RMS Spectral Density) |
能量谱密度 (ESD,Energy Spectrum Density) |
相干函数 (Coherence Function) |
帕斯瓦尔定理 (Parseval''s Theorem) |
维纳,辛钦公式 (Wiener-Khinchin Formula) |
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2 振动系统的固有特*、激励与响应 |
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振动系统 (Vibration System) |
激励 (Excitation) |
响应 (Response) |
单自由度系统 (Single Degree-Of-Freedom System) |
多自由度系统 (Multi-Degree-Of- Freedom System) |
离散化系统 (Discrete System) |
连续体系统 (Continuous System) |
刚度系数 (Stiffness Coefficient) |
自由振动 (Free Vibration) |
自由响应 (Free Response) |
强迫振动 (Forced Vibration) |
强迫响应 (Forced Response) |
初始条件 (Initial Condition) |
固有频率 (Natural Frequency) |
阻尼比 (Damping Ratio) |
衰减指数 (Damping Exponent) |
阻尼固有频率 (Damped Natural Frequency) |
对数减幅系数 (Logarithmic Decrement) |
主频率 (Principal Frequency)
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无阻尼模态频率 (Undamped Modal Frequency) |
模态 (Mode) |
主振动 (Principal Vibration) |
振型 (Mode Shape) |
振型矢量 (Vector Of Mode Shape) |
模态矢量 (Modal Vector) |
正交* (Orthogonality) |
展开定理 (Expansion Theorem) |
主质量 (Principal Mass) |
模态质量 (Modal Mass) |
主刚度 (Principal Stiffness) |
模态刚度 (Modal Stiffness) |
正则化 (Normalization) |
振型矩阵 (Matrix Of Modal Shape) |
模态矩阵 (Modal Matrix) |
主坐标 (Principal Coordinates) |
模态坐标 (Modal Coordinates) |
模态分析 (Modal Analysis) |
模态阻尼比 (Modal Damping Ratio) |
频响函数 (Frequency Response Function) |
幅频特* (Amplitude-frequency Characteristics) |
相频特* (Phase frequency Characteristics) |
共振 (Resonance) |
半功率点 (Half power Points) |
波德图 (Bodé Plot) |
动力放大系数 (Dynamical Magnification Factor) |
单位脉冲 (Unit Impulse) |
冲激响应函数 (Impulse Response Function) |
杜哈美积分 (Duhamel’s Integral) |
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卷积积分 (Convolution Integral) |
卷积定理 (Convolution Theorem) |
特征矩阵 (Characteristic Matrix) |
阻抗矩阵 (Impedance Matrix) |
频响函数矩阵 (Matrix Of Frequency Response Function) |
导纳矩阵 (Mobility Matrix) |
冲击响应谱 (Shock Response Spectrum) |
冲击激励 (Shock Excitation) |
冲击响应 (Shock Response) |
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冲击初始响应谱 (Initial Shock Response Spectrum) |
冲击剩余响应谱 (Residual Shock Response Spectrum) |
冲击最大响应谱 (Maximum Shock Response Spectrum) |
冲击响应谱分析 (Shock Response Spectrum Analysis) |
本站版权所有!! |
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模态试验 (Modal Testing) |
机械阻抗 (Mechanical Impedance) |
位移阻抗 (Displacement Impedance) |
速度阻抗 (Velocity Impedance) |
加速度阻抗 (Acceleration Impedance) |
机械导纳 (Mechanical Mobility) |
位移导纳 (Displacement Mobility) |
速度导纳 (Velocity Mobility) |
加速度导纳 (Acceleration Mobility) |
驱动点导纳 (Driving Point Mobility) |
跨点导纳 (Cross Mobility) |
传递函数 (Transfer Function) |
拉普拉斯变换 (Laplace Transform) |
传递函数矩阵 (Matrix Of Transfer Function) |
频响函数 (FRF,Frequency Response Function) |
频响函数矩阵 (Matrix Of FRF) |
实模态 (Normal Mode) |
复模态 (Complex Mode) |
模态参数 (Modal Parameter) |
模态频率 (Modal Frequency) |
模态阻尼比 (Modal Damping Ratio) |
模态振型 (Modal Shape) |
模态质量 (Modal Mass) |
模态刚度 (Modal Stiffness) |
模态阻力系数 (Modal Damping Coefficient) |
模态阻抗 (Modal Impedance) |
模态导纳 (Modal Mobility) |
模态损耗因子 (Modal Loss Factor) |
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比例粘*阻尼 (Proportional Viscous Damping) |
非比例粘*阻尼 (Non-proportional Viscous Damping) |
结构阻尼 (Structural Damping,Hysteretic Damping) |
复频率 (Complex Frequency) |
复振型 (Complex Modal Shape) |
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留数 (Residue) |
极点 (Pole) |
零点 (Zero) |
复留数 (Complex Residue) |
随机激励 (Random Excitation) |
伪随机激励 (Pseudo Random Excitation) |
猝发随机激励 (Burst Random Excitation) |
稳态正弦激励 (Steady State Sine Excitation) |
正弦扫描激励 (Sweeping Sine Excitation) |
锤击激励 (Impact Excitation) |
频响函数的H1 估计 (FRF Estimate by H1) |
频响函数的H2 估计 (FRF Estimate by H2) |
频响函数的H3 估计 (FRF Estimate by H3) |
单模态曲线拟合法 (Single-mode Curve Fitting Method) |
多模态曲线拟合法 (Multi-mode Curve Fitting Method) |
模态圆 (Mode Circle) |
剩余模态 (Residual Mode) |
幅频峰值法 (Peak Value Method) |
实频-虚频峰值法 (Peak Real/Imaginary Method) |
圆拟合法 (Circle Fitting Method) |
加权最小二乘拟合法 (Weighting Least Squares Fitting method) |
复指数拟合法 (Complex Exponential Fitting method) |
1.2 振动测试的名词术语 |
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1 传感器测量系统 |
传感器测量系统 (Transducer Measuring System) |
传感器 (Transducer) |
振动传感器 (Vibration Transducer) |
机械接收 (Mechanical Reception) |
机电变换 (Electro-mechanical Conversion) |
测量电路 (Measuring Circuit) |
惯*式传感器 (Inertial Transducer,Seismic Transducer) |
相对式传感器 (Relative Transducer) |
电感式传感器 (Inductive Transducer) |
应变式传感器 (Strain Gauge Transducer) |
电动力传感器 (Electro-dynamic Transducer) |
压电式传感器 (Piezoelectric Transducer) |
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压阻式传感器 (Piezoresistive Transducer) |
电涡流式传感器 (Eddy Current Transducer) |
伺服式传感器 (Servo Transducer) |
灵敏度 (Sensitivity) |
复数灵敏度 (Complex Sensitivity) |
分辨率 (Resolution) |
频率范围 (Frequency Range) |
线*范围 (Linear Range) |
频率上限 (Upper Limit Frequency) |
频率下限 (Lower Limit Frequency) |
静态响应 (Static Response) |
零频率响应 (Zero Frequency Response) |
动态范围 (Dynamic Range) |
幅值上限 Upper Limit Amplitude) |
幅值下限 (Lower Limit Amplitude) |
最大可测振级 (Max.Detectable Vibration Level) |
最小可测振级 (Min.Detectable Vibration Level) |
信噪比 (S/N Ratio) |
振动诺模图 (Vibration Nomogram) |
相移 (Phase Shift) |
波形畸变 (Wave-shape Distortion) |
比例相移 (Proportional Phase Shift) |
惯*传感器的稳态响应 (Steady Response Of Inertial Transducer) |
惯*传感器的稳击响应 (Shock Response Of Inertial Transducer) |
位移计型的频响特* (Frequency Response Characteristics Vibrometer) |
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加速度计型的频响特* (Frequency Response Characteristics Accelerometer) |
幅频特*曲线 (Amplitude-frequency Curve) |
相频特*曲线 (Phase-frequency Curve) |
固定安装共振频率 (Mounted Resonance Frequency) |
安装刚度 (Mounted Stiffness) |
有限高频效应 (Effect Of Limited High Frequency) |
有限低频效应 (Effect Of Limited Low Frequency) |
电动式变换 (Electro-dynamic Conversion) |
磁感应强度 (Magnetic Induction, Magnetic Flux Density) |
磁通 (Magnetic Flux) |
磁隙 (Magnetic Gap) |
电磁力 (Electro-magnetic Force) |
相对式速度传 (Relative Velocity Transducer) |