| "Ops A La Carte did an excellent job teaching a private two-day reliability seminar for our team. We learned a lot and would certainly use them again."
---Isaac Ohel, VP Engineering, Novera Optics
............................................... EDUCATION on the best tools for Reliability Engineering. INTEGRATION of all Elements of Reliability Programs for Maximum Value. Public and In-House Courses presented by world-class instructors directly in Silicon Valley. | |  Education & Seminars
Design for Vibration and Shock
OBJECTIVES
Highlights the different types of vibration tests and different type of equipment and fixtures. Reviews combined testing as well as fatigue calculations.
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WHO SHOULD ATTEND
This course is intended for those involved in design, test, or analysis, who want a better understanding of advanced statistical concepts to use during design and testing a product.
OUTLINE
Designing for vibration and shock • Stress Strength Analysis Classical sinusoidal vibration never observed in service; useful concept • Introduction: terminology, structural resonant behavior, passive and active isolation • Sinusoidal vibration measurements: units, sensors, readouts, errors • Calibration of sensors and systems; traceability to NIST Complex vibration; introduction to spectrum analysis Sinusoidal vibration testing • Electrohydraulic and electrodynamic shakers; theory, tradeoffs, limits • Power amplifier theory, operation, limitations, distortion effects • Controls for sinusoidal vibration testing • Sinusoidal vibration test practice • Interpretation of standards; Government and commercial • Controversial test methodology: tracking filters, multiple sensors Introduction to random vibration • Sources of random vibration in service and transportation • No possible equivalence to sinusoidal vibration • Terminology and definitions • Spectral density measurement and analysis - the frequency domain • Probability density - the time domain Random vibration testing • Controls • Combined environment (CERT) testing; reliability tests, e.g. MIL-STD-781 Accelerated testing; HALT and HASS Fatigue Calculations Environmental stress screening (ESS) of electronics hardware production • Single vs. multi-axis vibration • Pneumatic repetitive-shock machines Vibration and shock test fixtures; fixtures for stress screening • Recommended designs, materials, fabrication methods • Experimental evaluation before use • Practical limits: transverse motion; specimen size and weight Gunfire vibration testing Combined temperature, humidity, vibration and altitude testing Instrumentation for measuring shock in service and during tests • Sensors, readouts, errors; calibration • Shock spectrum analysis; shock response spectrum Shock testing per Method • Shock testing machines; limitations • Use of shaker for shock testing Summary
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