Date and Time
October 12-14, 2010
8am - 4pm
Location
National Technical Systems - NTS
1701 E. Plano Parkway
Plano, Texas 75074
Teacher
Steve Brenner
download this course promotional postcard 
(approx. 700K)
Course Description
Lectures, supported by projected visuals and video clips, commencing with a brief review of basic vibrations, then vibration measurements, analysis and calibration. Emphasis will be on sinusoidal and random vibration testing; shock testing, vibration and shock test equipment, test standards, and vibration and shock test fixture design. Details of fixture design, materials, fabrication techniques, evaluations and utilization are the focus of this short course.
Objectives
Upon completion of this short course, the participant will have reviewed vibration and shock requirements, also understood calibration and usage of vibration and shock measurement systems. He/she will be able to (1) design (or negotiate and procure) suitable vibration and shock test fixtures, (2) experimentally evaluate them and (3) correctly use them.
For whom intended
I need practical knowledge about fixtures used in mechanical vibration and mechanical shock testing because I:
- design fixtures for vibration and/or shock testing
- experimentally evaluate new fixtures
- design products that must be tested; I suspect that fixtures affect tests
- negotiate and procure fixturing for our lab
- oversee vibration and shock tests, preventing over/undertesting
If you thought, "aha - that's what I'm supposed to do" to any of the job descriptions listed above, then instructor Steve Brenner says, "This course is intended for you." It will help you move up your own "learning curve."
A smaller group, for whom Steve also intends this course: supervisors of activities suggested above. You need to explain your department's activities to your superiors in the technically correct language. Perhaps you need to decide between "in house" and "outside" testing. Perhaps you need to decide whether to “build or buy” fixtures.
Course Outline
Overview
- Purpose of environmental testing, particularly vibration and shock
- Types of vibration tests: resonance search/dwell, fatigue, specification, screening
Quiz for evaluation of attendee prior knowledge
In dynamics testing, what is a fixture?
- Review of classical sinusoidal vibration theory
- Never observed in service; useful concept
- Terminology, structural resonant behavior, isolation
- Measurements: units, sensors, readouts, errors
- Short review of calibration
Review of sinusoidal vibration testing
- Electrohydraulic and particularly electrodynamic shakers; theory, tradeoffs, limits
- Power amplifier theory, operation, limitations, distortion effects
- Controls for sinusoidal vibration testing
- Sinusoidal vibration test practice
- Interpretation of standards; e.g. MIL-STD-810
- Controversial test methodology: tracking filters, switching and averaging among sensors
- Function of fixture
Review of random vibration theory
- Sources of random vibration in service and transportation
- No possible equivalence to sinusoidal vibration
- Terminology and definitions
- g2/Hz Spectral density measurement and analysis - the frequency domain
- Probability density - the time domain
Review of random vibration test practice
- Interpreting and implementing standards, e.g. MIL-STD-810
- Shaker control; methods and limits
- Function of fixture
Mention of combined environment (CERT) testing
Review of shock testing standards and methods
- Shock testing machines; limitations
- Use of shaker (for shock testing)
- Function of fixture
- Pyro shock testing
Vibration and shock test fixtures
- Recommended designs
- Plates
- Cubes
- T's
- Bookends
- Slip Plates
- Specials
- Recommended materials
- Aluminum
- Magnesium
- Others
- Recommended fabrication methods
- Casting
- Machining
- Welding
- Bolting
- Bonding
- Others
- Permanent Identification
- Experimental evaluation before use
- The need for fixture evaluation
- The process of fixture evaluation
- Keeping records of experimental evaluation
- Protecting fixture between tests
Course summary; optional final examination; award of certificates
Text Materials
Each participant will also receive a copy of Wayne Tustin'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. Steve will supplement Chapter 26 of that text with additional photographs and data documenting the latest techniques for designing and evaluating state-of-the-art vibration fixtures.
Location
National Technical Systems - NTS
1701 E. Plano Parkway
Plano, Texas 75074
Tel: 1.800.270.2516
Map and directions to NTS.
Suggestion for Accommodation
Homewood Suites by Hilton
2601 E Pres George Bush Hwy
Plano, TX 75074
(972) 881-3339
$109.00 - $179.00 weekdays
$104.00 weekends
Includes breakfast buffet.
(*) Please make sure you let them know you are with NTS to receive the discounted 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.
