Vibration Testing (116)

• Types of Vibration Tests
  • Development Testing
  • Qualification Testing
  • Acceptance Testing
  • Screening Tests (or Procedures)
  • Reliability Tests
  • Durability and Functional Tests
• Accelerated Testing
  • Accelerated Vibration Testing
  • “S-N” Curve from Fatigue Testing
  • Idealized “S-N” Curve for Typical Steel Alloy
  • Designing Accelerated Durability Vibration Tests
• What is the Environment?
  • The Applied Environment … Philosophy
• Vibration Testing — Control
  • Closed Loop Control
  • Control System Function
  • Function Generators
  • Location of Control Accelerometer
• Unwanted Table Movement
  • Resonant Distortion of Electrodynamic Shaker Table
  • Axial Resonance of Shaker Slip Tables
  • Shaker Slip Table — High cg Load
• Shaker Control—Input or Response
  • Notching the Spectrum
  • Strobe Light used with Sinusoidal Vibration Test
• Multiple Degrees of Freedom Testing
  • What a Multi-Axis System Provides
  • What Is NOT A Multi-Axis System?
  • Simultaneous 3-Axis Testing
  • “Real” Multiple Degree-of-Freedom Systems
  • “Tri-Axial Quasi-Random” Systems
  • Two-Shaker, Two DOF Systems
  • Three-Degree-of-Freedom Systems
    • Army Research Lab (ARL) 3-DOF Machine
    • Team Mantis
    • Team Cube
    • Hydraulic Test System—6 Degrees of Control, the CUBE™

Vibration Testing (Ver.116-117)