Introduction to Random Vibration (116)
Chapter Outline
Chapter 5 - Introduction to Random Vibration (Fundamentals of Vibration for Test Applications)
- Demonstrations — Sinusoidal Vibration, Complex Waveform, Random Vibration
- “Single Sweep” Time History
- Demonstration of the Effects of Random Vibration
- Statistics and Random Vibration
- Probability Distribution
- Statistical Evaluations
- Random Data Spectrum
- Gaussian (Normal) Distribution Curve
- Continuous Probability Distribution
- Random Data
- Random Vibration Spectrum
- Time-History Properties
- Spectra
- Spectrum Calculation ... Comb Filter Analogy
- The Spectral View
- Auto Spectral Density or Power Spectral Density
- Spectral Density
- ESS Random Vibration Spectrum
- PSD Graph, Linear vs. Logarithmic Scale
- Example of Vibration Spectrum
- Calculating the RMS From the PSD
- Shaker Power Spectral Density Response
- Equalization to Correct PSD
- High-Frequency Noise
- Deriving Transmissibility from Random Vibration
Video Outline
Introduction to Random Vibration (ver. 116-117)
Notes on Chapter 116 vs 116/117. Chapters 1-7 are the same in both courses