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Fundamentals of Vibration and Shock Distance Learning Course

 
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Mjr
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PostPosted: Wed Dec 21, 2005 5:24 am    Post subject: Fundamentals of Vibration and Shock Distance Learning Course Reply with quote


From TTI:

Fundamentals of Vibration and Shock: An introduction to Sine and Random Vibration and Mechanical Shock Testing, Measurement, Analysis, Calibration, Fixtures and Stress Screening (ESS).

Quote:
Applications Random vibration is important in many engineering applications, ranging from earthquakes to computers to ships to automobiles, trucks and military vehicles to high-performance aircraft and missiles. In most instances the service and/or the transportation environment is random. Environmental Stress Screening (ESS) of electronics production demands random vibration.

MIL-STD-810 requires military suppliers to adopt random vibration tests. The benefits, implementation and costs will be discussed. Pneumatic and mechanical random generators will be considered for environmental stress screening (ESS).

For Whom Intended Most engineers need specialized education to properly measure, quantify and analyze this generally unfamiliar environment and to reproduce it in environmental test laboratories. This course is for test laboratory managers, engineers and aides. It also helps quality and reliability specialists, designers and acquisition personnel in government and military activities and their contractors.

Instrumentation specialists who will measure transportation, service and laboratory vibration and shock need this course. Metrologists learn about calibration. Project personnel, structure and packaging engineers learn about developmental testing. Product assurance and acquisition specialists learn to evaluate test facilities, and to interpret specifications.

Before buying a new or used vibration test system, talk to TTi. Equipment manufacturers' field sales personnel may lack time to teach fundamentals. TTi training helps you to select the equipment and tests you really need.




TTI's Course Syllabus:

Fundamentals of Vibration & Shock

A. The first twelve lessons introduce vibration theory with minimal mathematics, help students to understand vibratory forces and structural responses, prepare them to “speak the language of vibration,” and acquaint them with vibration measuring instruments and systems.

  • Lesson 1 Sources of vibratory energy in machines and vehicles.
  • Lessons 2, 3 Introduction to dynamic motion
  • Lesson 4 The specialized language of vibration
  • Lessons 5-10 Sensors and systems for measurement of vibration:
    • Lesson 5 Displacement
    • Lesson 6 Velocity
    • Lesson 7-9 Acceleration
    • Lesson 10 Force
  • Lessons 11-12 Introduction to the analysis of complex and random vibrations

B. The next two lessons prepare the student to understand and perform static and dynamic calibration of equipment used for measuring vibration.

  • Lessons 13-14 Calibration of vibration measurement systems

C. The next four lessons explain applications, features and limitations of mechanical, electrohydraulic and electromagnetic shakers, together with their power sources.

  • Lesson 15 Mechanical shakers
  • Lesson 16 Electrohydraulic shakers
  • Lesson 17 Electromagnetic shakers
  • Lesson 18 Power amplifiers for electromagnetic shakers

D. The next seven lessons prepare the student for Mil-type sinusoidal and (later) random vibration testing by introducing manual and automatic shaker controls, laboratory test practice, interpreting specifications, specifying test fixtures, etc.

  • Lesson 19 Analog and digital controls for sinusoidal testing
  • Lesson 20 Sinusoidal testing standards
  • Lesson 21 Conducting sinusoidal vibration tests
  • Lesson 22 Orthogonal motion
  • Lessons 23-24 Test fixtures
  • Lesson 25 Aux. devices for testing large loads

E. The next six lessons cover the basic concepts of random vibration and its statistical measure (psd, rms, etc.) which are explained with high-school level mathematics. Random vibration test specifications are discussed, long with equipment for spectrum equalization and for spectrum analysis. These lessons are intended for senior technicians and engineers who specify, perform, witness and/or interpret random vibration tests or who will purchase or work with this equipment.

  • Lesson 26 Introduction to random vibration
  • Lesson 27 Measurement and analysis of random vibration
  • Lesson 28 Random vibration test specifications; signal sources
  • Lesson 29 Analog equalization for random vibration testing
  • Lesson 30 Computer control of random vibration testing
  • Lesson 31 Protecting the shaker and specimen

F. This lesson deals with the use of environmental stress screening (ESS) to identify manufacturing defects in electronics production.

  • Lesson 32 Environmental Stress Screening

G. The final three lessons introduce shock and pyro shock.

  • Lesson 33 Shock measurement
  • Lesson 34 Shock analysis and calibration
  • Lesson 35 Shock testing


For more information, visit:
http://www.ttiedu.com
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