May 24 - 26, 2016
August 9 - 11, 2016
October 4 - 6, 2016
- Three Day Course
- $1,700 per student
- Contact Lauren Yancey for additional details
Mechanical Shock Testing & Data Analysis
Mechanical Shock may be defined as a sudden change in velocity and is a major design consideration for a wide variety of systems. The structural response to mechanical shock must be measured and characterized during the engineering development of these systems so that they will survive all environments during their service lifetime. These environments may include (but are not limited to): handling and transportation shocks, shocks during system delivery to a target, and shock originating from an explosive or pyrotechnic event. These different shock environments have a velocity change range from about 1 meter per second to 51 meters per second (40 - 2000 ips). Conversely acceleration magnitudes range from <1 g in earthquakes to 200,000 g in differentiated LDV measured pyroshocks.
This course will provide a comprehensive treatment of mechanical shock test techniques and data analysis for shocks from 100g to 200,000g. Mechanical shock instrumentation from low frequency techniques for underwater explosions (digitally filtered at 250 Hz as required by the US Navy) to high frequency techniques for ballistic shock will be reviewed in detail along with the techniques and data analyses to evaluate the instrumentation measuring these shocks. This course is highly recommended for all lead technicians and managers of environmental test laboratories. Managers and engineers on projects requiring shock testing will benefit greatly.
Mechanical shock test techniques from package testing to conventional mechanical shock machines to pyroshock simulations and Hopkinson bar techniques will be presented. Design procedures for mechanical shock equipment will be discussed in detail. Where possible, theoretical bases for mechanical shock test techniques are provided. Mechanical shock data analysis and interpretation will be a major focus of all presentations and discussions and will include shock data examination and editing as well as interpolation, trend removal, and integration with MATLAB. This course includes the state-of-the-art shock data evaluation techniques to detect “BAD” data, techniques to salvage “BAD” data and requirement for data acquisition systems to collect “GOOD” data.
Dr. Vesta I. Bateman
Dr. Bateman is a mechanical shock specialist and retired from Sandia National Laboratories, Albuquerque , New Mexico after twenty-seven years of service. She was the Facility Leader for the Mechanical Shock Laboratory at Sandia National Laboratories where she was responsible for a wide spectrum of mechanical shock testing including drop table, Hopkinson bar, horizontal pneumatic actuator, rocket rail, live pyroshock, and pyroshock simulation shock tests. She has developed a unique shock isolator for a high shock, high frequency accelerometer as well as the test techniques and data analyses required to evaluate accelerometers and isolated accelerometers. These technologies have been transferred to industry through Cooperative Research and Development Agreements (CRADA’s). Dr. Bateman also developed high frequency Hopkinson bar testing with bars made of beryllium and a technique for reconstruction of dynamic forces from accelerometer measurements to assess material crush characteristics. A paper by Dr. Bateman and her co-authors won the 1992 Henry Pusey Best Paper Award at the Shock and Vibration Symposium. She was awarded the IEST Edward O. Szymkowiak Award in 2003 for her leadership in Pyroshock Testing. She is the author of two chapters in Harris’ Shock and Vibration Handbook, the ISO Secondary Shock Calibration Standard, and the IEST Pyroshock Testing Recommended Practice as well as over 100 journal and conference papers and reports. Dr. Bateman has a Ph.D from University of Arizona and taught for four years at Virginia Tech at the beginning of her career.
Introduction to Mechanical Shock
Mechanical Shock Instrumentation and Measurement
Certification of Shock
Time and Frequency Domain Shock Specifications
Shock Analysis using the Acceleration
Shock Response Spectrum
Revolutionary Treatment of Pyroshock with the Pseudo Velocity Shock spectrum
Data Acquisition System Calibration/Use
MATLAB Data Analysis
Conventional Shock Testing Machines
For Components and Full Scale Systems
Navy Mechanical Shock Machines
Pyroshock Testing and Simulation
Component Pyroshock Simulations Including Apparatus and Fixture Design
Accelerometer, MEMS, and Materials Evaluations
Hopkinson Bar theory, Materials, Configuration and Certifications
Commercial Laser Doppler Vibrometer use and Certification
Complete details of Pseudo Velocity Shock Spectra (PVSS) technology and applications including the following:
PVSS on four coordinate paper (4CP) defines Shock severity level
Severe shock frequency range defined by the PVSS plateau
PVSS measurement of shock isolation protection
Maximum modal stress given by the PVSS
PVSS measurement of filtering; fast digital filter
PVSS calculation ramp invariant filter theory
Shock polarity measurement with the damped PVSS
Converting SRS plots to approximate PVSS for severity evaluation
PVSS analysis of all simple shocks shows them all equally severe
Continuous systems maximum stress from PVSS
Max modal velocity is proportional max modal stress
Evaluation of equipment shock fragility
Damage capacity you are hidden by data filtering
Review and Wrap-up Sessions
Course Syllabus by request
Registration & Fees
The Registration Fee is $1,700 per student. The registration is transferable to any person in the same organization. The fee includes a comprehensive set of course notes, a compilation of papers by Instructors Bateman and Gaberson, a text book entitled Shock Data Analysis by Rudolph J. Scavuzzo and Henry C. Pusey, a Certificate of completion worth 3 CEUs*, as well as a Continental Breakfast, Lunch and coffee breaks daily.
*CEUs may vary be state and/or association granting accreditation.
NOTE: Registrants for each course will be provided details about the course location and hotel(s) as soon as the course is firmly scheduled.