Vibration and Shock Test & Control Techniques

Course 194 - Three-day Course

Audience: Engineering or technical personnel involved in specifying, tailoring (e.g. MIL-STD-810E) and performing state-of-the-art random vibration and shock tests; those who obtain/ analyze/review field and laboratory test data; and those who design/certify hardware/structures/instrumentation to meet dynamic environmental requirements. Members of the automotive, aerospace, aircraft, shipboard and weapons technical communities will benefit.

Course Description: The course is an overview of vibration- testing technology with emphasis on the practical everyday problems that are encountered in testing laboratories. Emphasis is placed on the basic principles of vibration hardware, control systems, and analysis techniques used for random, sine, and shock testing. Complex mathematical concepts are reduced to graphic form for intuitive understanding. Illustrative examples from the "real world" are used throughout.

COURSE OUTLINE NO. 194

• Introduction and Basic Concepts
• Structural Resonances, Time History and Spectral Analysis
• Test Objectives and Philosophy
  • Damage Potential
  • MIL-STD Testing
• Environmental Simulation Concepts
  • Sine, Random, and Simulated Shock Excitation
  • Vibration and Shock History Reproduction
  • Test Specification
• Simulation Methods
  • "Programmed" Excitation
    • Excitation Hardware
      • Electrodynamic and Electrohydraulic Shakers
      • Specifications and Real-World Behavior
    • Excitation Functions
  • "Impact" and "Drop" Machines
• Fixtures
• Simulation "Accuracy" using different approaches
• Measurement Systems
  • Transducers for Vibration and Shock
• Data Acquisition Requirements and Methods
• Analysis Tools
  • Averaging Concepts, Degrees of Freedom
  • Power Spectral Density (PSD) and Shock Response Spectrum (SRS)
• Control Systems
  • Closed-Loop Control Concepts
    • Random Control
      • Spectral Control
      • Response and Force Limiting
    • Sine Controllers
    • Shock Synthesis and Control
  • Real-World Systems
    • System Demonstration--videos
    • System/Physical/Method Limitations
    • What do the Control Parameters Mean?
    • How do they effect the results?
• Multiple-Degree-of-Freedom Systems
  • Hardware Implementation
  • Control Strategies
• Random Vibration for HALT, HASS and ESS applications
• Review of currently available hardware
• Real-World Test Laboratory Applications
• Student Topic/Problem Discussion
• Review and Final Examination
• Award of Certificate for Successful Completion

Copyright Tustin Technical Institute, Inc. 2005