Random Vibration (310)

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Chapter Outline

Chapter 7 - Random Vibration (Mechanical Design for Product Reliability)

  • Demonstrations-Sinusoidal Vibration, Complex Waveform, Random Vibration
  • Probability Density
  • Power Spectral Density (PSD)
  • Shaker Power Spectral Density Response
  • Equalization
  • Calculating the RMS Acceleration from Spectral Plot

Video Outline

Introduction to Random Vibration (310)

Demonstrations—Sinusoidal Vibration, Complex Waveform, Random Vibration • “Single Sweep” Time History • Random Vibration vs. Complex Vibration • Probability Density • Random Vibration Probability Density Curve • Special Definitions for Random Vibration • Probability Density—Gaussian Curve • Amplitude Probability Density of Peaks • Random Signal Compared to Complex Signal • Spectral Density • Shaker Power Spectral Density Response • Equalization to Correct PSD • ESS Random Vibration Spectrum • Example of Vibration Spectrum • PSD Graph on Log-Log Scale vs. Linear Scale • Test Spectrum with High-Frequency Noise • Calculating the RMS From Spectral Plot • Transmissibility Derived From Random Vibration