Date and Time
October 12-14, 2010
8am - 4pm
Location
National Technical Systems (NTS)
20970 Centre Pointe Parkway
Santa Clarita, California 91350
Teacher
Vladimir Valentekovich
download this course promotional postcard 
(approx. 740K)
Course Description
An introduction to the theoretical and practical aspects of high frequency shock testing, commonly called “pyroshock” or “pyrotechnic shock” testing.
The basic physics involved in pyroshock, including meaningful measurement and analysis of the environment, will be presented and discussed. The presentation encourages attendees (having varied structural dynamic backgrounds and experience) to contribute their personal experiences and observations, and thus to collaborate with the teaching staff and their fellow attendees. Their experience, if any, might range from the quantification of the flight environment to test simulation and/or qualification and flight acceptance of flight articles.
Test simulation and methodologies will be presented and demonstrated in the laboratory. Relevant sections from Tustin’s text will be reviewed and will be extended into applicable current technical papers and guidelines.
Objectives
The objective of this course is to introduce the designer, technician and/or engineer to the phenomena of high intensity, short duration field and test laboratory transients and the possible deleterious effects on equipment.
For whom intended
This short course is intended for a wide range of technical people, ranging from test technicians to test engineers to design engineers to senior scientists, who need to understand and conduct tests utilizing (or at least simulating) explosions. They also need to measure, record and analyze what happens to test hardware during and immediately after those brief events. Real world pyro shocks occur during explosions and explosive discharges, such as rocket engine ignition, stage separation, etc.
Course Outline
Overview
Definition of pyro shock
Sources
- High orde explosives (PETN, RDX, detonation, etc.)
- Low order explosives (gas generators, pressure generators, deflagration etc.)
Physics
- Stress wave propagation
- Structural response
Data acquisition system
- Source
- Instrumentation
- Accelerometer – various types
- Signal conditioning
- Filtering, high pass and low pass
- Data storage
- Analog (recall Honeywell RTR recorders – long extinct)
- Digital
- Analog to digital conversion
- Sigma delta converters
- Low pass filtering requirements
- Calibration of data acquisition system
- Data integrity - verification and analysis
- Time history examination
- Frequency domain
- FFT
- Shock Response Spectrum
Ordnance Testing Methodologies
- Gathering and storing flight data
- Full scale structure simulation
- Sub scale structure simulation
- Surrogate structure simulation
- Testing real hardware that is later to fly
Simulation testing methodologies
- Electrodynamic Shaker
- Enhanced electrodynamic shaker
- Resonant Fixturing
- Mechanical Impact
- Gravity Driven Impact
- Testing hardware that is later to fly
Testing Examples
- Ordnance pyroshock test demonstration by NTS
- Electrodynamic shaker pyroshock simulation test demonstration by NTS
- Mechanical impact pyroshock simulation test demonstration by NTS
Text Materials
Each participant receives a copy of Wayne's text 'A minimal-mathematics Introduction to the Fundamentals of Random Vibration and Shock Testing, HALT, ESS & HASS, also Measurements, Analysis & Calibration', including a CD containing a number of video clips pertaining to sine and random vibration and shock behavior and testing. This book will be supplemented by the instructor's pyro-shock measurement, SRS analysis, calibration and pyro-shock testing techniques handouts.
Location
National Technical Systems (NTS)
20970 Centre Pointe Parkway
Santa Clarita, California 91350
Tel: 661-259-8184
NTS map . Get directions to NTS.
Suggestion for Accommodation
Embassy Suites Valencia, CA
28508 Westinghouse Place
Valencia, CA 91355
Phone: 661-257-3111
Toll Free: (800) EMBASSY
This hotel offers a promo rate of $109 per night for NTS. Follow this step by step to book your room and take advantage of this rate.
Fee/Registration
Fee is US$2,595 per student. Payment in advance via check, VISA or Mastercard preferred credit cards or bank transfer (ask for transfer details).
For registration and payment received one month prior to course, deduct $100. For three or more participants from an organization and payment received one month prior to course, deduct $200 each.
For your convenience, click on the top button to expeditiously enroll online or click the lower button to enroll via Fax. Alternatively you can call our office at (805) 564-1260.
