FUNDAMENTALS OF VIBRATION AND SHOCK TESTING, MEASUREMENTS, ANALYSIS, CALIBRATION, HALT, HASS AND ESS

Instructed by
Wayne Tustin

Pico Rivera, CA- <%=company%>, Inc will host a Vibration and Shock Technology Seminar (fundamentals, measurement, analysis, calibration and testing, as well as HALT, ESS and HASS) September 20-22nd, 2000. This three day comprehensive course will be taught by famed vibration educator Wayne Tustin of Equipment Reliability Institute. The course is aimed at newcomers to environmental vibration and shock technology and for those needed a review and update.

Course Outline

I. Overview for management and participants
A. Purpose of environmental testing, particularly vibration and shock
B. Purpose of environmental stress screening (ESS)
C. Types of vibration tests: resonance search/dwell, fatigue, specification
D. Approximate scheduling so managers can audit special topics

II. Quiz for evaluation of attendee prior knowledge
A. Classical sinusoidal vibration never observed in service; useful concept

III. Introduction: terminology, structural resonant behavior, passive and active isolation
A. Sinusoidal vibration measurements: units, sensors, readouts, errors
B. Calibration of sensors and systems; traceability to NIST

IV. Most machinery vibration is complex; introduction to spectrum analysis
A. Sinusoidal vibration testing
1. Electrohydraulic and electrodynamic shakers; theory, tradeoffs, limits
2. Power amplifier theory, operation, limitations, distortion effects
3. Controls for sinusoidal vibration testing
B. Sinusoidal vibration test practice
1. Interpretation of standards; e.g. MIL-STD-810
2. Controversial test methodology: tracking filters, switching and averaging among sensors

V. Introduction to random vibration
A. Sources of random vibration in service and transportation
B. No possible equivalence to sinusoidal vibration
C. Terminology and definitions
D. Spectral density measurement and analysis - the frequency domain
E. Probability density - the time domain

VII. Random vibration test practice
A. Interpreting and implementing standards, e.g. MIL-STD-810
B. Equalization before testing; methods and limits
C. Controls
D. Combined environment (CERT) testing; reliability tests, e.g. MIL-STD-781
E. Acoustical environment (intense noise) testing

VIII. Accelerated testing; HALT and HASS

IX. Environmental stress screening (ESS) of electronics hardware production
A. Single vs. multi-axis vibration
B. Pneumatic repetitive-shock machines
X. Vibration and shock test fixtures; fixtures for stress screening
A. Recommended designs, materials, fabrication methods
B. Experimental evaluation before use
C. Practical limits: transverse motion; specimen size and weight

XI. Instrumentation for measuring shock in service and during tests
A. Sensors, readouts, errors
B. Calibration
C. Shock spectrum analysis; shock response spectrum

XII. Shock testing standards and methods

XIII. Shock testing machines; limitations
A. Use of shaker
XIV. Witnessing of tests

XV. Course summary; optional final examination; award of certificates

FEE
Fee is $1,595. For registration and payment received at ERI a month before a course commences, deduct $100. For three or more participants from an organization and payment received by a month prior, deduct $200 each.

LOCATION
Garwood Laboratories, Inc., 7829 Industry Avenue, Pico Rivera, California 90660, telephone 562/949-2727 FAX 562/949-8757. For driving instructions, http://www.garwoodtestlabs.com/directions. For hotel accommodations, http://www.garwoodtestlabs.com/accommodations. For a map, visit http://maps.yahoo.com/py/maps.py and enter the street address.

INSTRUCTOR
Wayne Tustin's first involvement in vibration and shock measurement and testing was at Boeing/Seattle in 1948. Boeing was not only measuring in-flight vibrations but also pioneering (on the XB47 and XB52 bombers) the use of (homemade) electrodynamic shakers for what much later came to be known as modal testing. Wayne used that practical experience while associated with a pioneer shaker system manufacturer (MB Electronics, later reorganized as MB Dynamics) 1954-61. From 1962-90 he directed a small, specialized engineering school. Since 1990, Equipment Reliability Group (ERG - now a subsidiary) has provided consulting services. Resuming teaching in 1995, he organized Equipment Reliability Institute (ERI) to provide specialized technical education, mainly on-site, at the facilities of companies and agencies, for test personnel and designers. He currently teaches a short course "Automotive Vibration and BSR (Buzz, Squeak and Rattle) Testing," several times per year, for the Society of Automotive Engineers (SAE). Also a very few "open" courses and individualized "distance learning" for individuals, via CD-ROM and e-mail. A more complete biography is posted at http://www.equipment-reliability.com. A complete listing of Wayne's publications is available upon request.

CERTIFICATE
A simple certificate is awarded upon successful completion of the course.

To Register or for more information contact Wayne Tustin
tustin@equipment-reliability.com or call (805) 564-1260

Visit us at: www.garwoodtestlabs.com