About ERI

Wayne Tustin

Wayne Tustin I'm blessed with good health and a supportive family, and greatly enjoy my business and professional activities. Helping adults learn (about vibration and shock measurement and testing, in my case) is fun. May I help you (or someone you know) to learn about these subjects? We’ll both enjoy the experience.

Please telephone me at 805/564-1260 or Skype wayne.tustin so that we can chat. Or send an e-mail to tustin @ equipment-reliability.com.

In case you are interested, here is some background information. I grew up in Seattle, Washington, where I attended the University of Washington and received the BSEE degree in 1944. After working briefly at the UW, in Los Angeles and in Seattle, I started at Boeing Airplane Company in 1948. That's where I first encountered vibration and shock testing and measurement. Like nearly all of my present-day students, without any real preparation for the field, I stumbled into this interesting mechanical engineering field.

Boeing was building its own electrodynamic shakers (they were not yet commercially available) for what is nowadays called modal testing. I was part of the team that modal tested the XB52 model of the famous B52 bomber. Amazingly, the USAF is using B52s into the 21st century!

My next significant work was for MB Electronics (since reorganized as MB Dynamics) 1948-61 at New Haven, CT, at that time the world's largest manufacturer of shakers for vibration testing. Vibration testing was at that time practically unknown (and is in 2008 still little known.) I headed Field Service and Technical Training. That experience led to founding a school that would offer vibration and shock short courses.

That first school (now called TTI) was born in 1962 and sold in 1990, as I intended to retire. For a couple of years I consulted, commencing to use the business name Equipment Reliability Group (ERG), so that I could loosely associate with other consultants.

By 1995, when my non-compete agreement ended, I decided to "unretire" as Equipment Reliability Institute (ERI) and to move back to Santa Barbara. ERI's assets included my nearly fifty years in vibration (see the text "Vibration Pioneers") and an estimated 10,000 past students, some of whom were now test and design managers who wanted me to teach their new people.

Similarly, young Joe Youngman is a bit surprised to find himself employed as a vibration test engineer. His university training had prepared him for computer engineering. Joe is learning much from his mentor, Henry. Since 2005, Joe has starred in my series of fictional episodes (6 per year) at imaginary A-1 Testing Lab. These episodes appear in the magazine TEST Engineering and Management.

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Wayne Tustin's training and consulting (licensed Professional Engineer in the State of California) interests lie in the environments that can lessen equipment availability, that can cause equipment downtime. His particular concerns: dynamics, primarily the measurement, analysis and simulation (in environmental testing laboratories) of mechanical shock and vibration (particularly random vibration), also the stimulation of latent defects during new product development and as a final step in production, also acoustic noise, as in quieting products and in automotive "buzz, squeak and rattle" testing.

Some ERI instructors (including Wayne) are generalists who recognize that other specialists in their fields outrank them technically. ERI training can explain the often-highly-complex work of those specialists. ERI offers onsite as well as video teleconference training for test personnel, designers, quality and reliability engineers. Wayne has developed distant learning in vibration and shock; e-mail speeds review problems. Wayne is available to consult on specific dynamics problems.

Wayne's explanations benefit not only test and development personnel (laboratory managers, test engineers, technicians and aides as well as designers) but also people from product quality, reliability and instrumentation whose activities require them to measure in-service dynamic events, generate and/or interpret test specifications and evaluate laboratory capabilities, testing machines and techniques. Many of these workers need simple working explanations of such subjects as random vibration.

Wayne's first experience with dynamics was 1948-53 at Boeing Co. in Seattle, where in 1944 he had earned his BSEE degree from the University of Washington. From 1954-61 he managed field service and technical training at MB Electronics, then the leading USA manufacturer of vibration test equipment. Since 1962 he has supplied technical training to Government and Industry, and has taught in the USA and abroad (Australia, Canada, Denmark, Germany, Great Britain, Holland, Italy, Singapore, South Africa and Sweden). He is happy to propose customized onsite teaching.

Technical Societies
Fellow, Institute of Environmental Sciences and Technology (IEST). Member, Society of Environmental Engineers (England). Lecturer to the Institute of Radio Engineers (now IEEE), the Institute of Environmental Sciences, the Instrument Society of America, the American Society of Mechanical Engineers, the American Society for Quality Control, the Society of Automotive Engineers, the Australian Organization for Quality Control and the Society of Environmental Engineers (England).

To National Meetings of the IEST in 1964, 1966, 1968, 1986, 1992, 1993, 1995, 2002, 2004 and 2006, he contributed papers on sinusoidal and random vibration testing, and participated in or chaired tutorial series on dynamics. At Anaheim in 1995 his tutorial sessions were entitled "Random Vibration Testing" and "Basic Vibrations." For several years he headed a Working Group developing RP-013, IEST Recommended Practice on Vibration and Shock Test Fixture Design.

On behalf of the lEST, thank you for your contribution to the professional advancement of our attendees through your seminar at the lEST 55th Annual Technical Meeting. We truly appreciate your support, particularly this year. Your participation helped ensure the success of ESTECH in spite of an uncertain global economy.

Roberta Burrows, IEST Executive Director

He contributed "Why Test with Random Vibration?" January 1980 at the Annual Reliability and Maintainability Symposium (RAMS) in San Francisco. He presented tutorials on random vibration and production environmental stress screening at Los Angeles in January 1988 and at Atlanta in January 1989.

At the Western Regional Conference of the American Society for Quality Control in Los Angeles, January, 1991, he spoke on "What is g²/Hz?" In May, 1981, at San Francisco, he expounded "Random Vibration for Stress Screening of Electronics." He held forth on "Random Vibration Tests to MIL-STD-781C" at the ASQC Technical Conference at Chicago, May, 1978.

To the SAE Noise & Vibration Conference at Traverse City, Michigan, April, 1987, he presented "The Future of Random Vibration Screening and Testing in Automotive Engineering," SAE paper 870984. For many years he taught SAE short course 92030 on "Automotive Vibration and BSR Testing" at Troy, MI.

Wayne is cited on pages 210-216 of "Pioneers of Shock and Vibration" by Michael T. Freeman and published as SVM-14 by the Shock and Vibration Analysis Center, Arlington, Virginia.

In 2009 Wayne instigated a Vibration and Shock Test Group on LinkedIn, along with several discussion topics: Military Standard 810G, Electrical grounding within the Vibration Test Lab and Multiaxis Vibration Testing.

Please see Wayne's list of articles, textbooks and list of presentations below.

Master list of articles by Wayne Tustin

Alphabetical Index for the publications:

A - C - E - I - J-L - M - N - P - Q - R - S - T

A²C² Magazine

Now (when things are slow) is the time to train your staff,
Nov/2001
Building Vibration can Contaminate Cleanrooms, Products and Processes, Oct/2001
coauthors Alvin Lieberman and Ray K. Schneider

A2LA News: The Newsletter of the American Association for Laboratory Accreditation

Are Accelerometers in Good Condition?, July 2006, Number 93

Aerospace Testing International
Shake it but don’t break it, 2/2004

AMMTIAC Journal

Random Vibration & Mechanical Shock Excite All Resonances,
4^th quarter - 2004
Simultaneous Multiple Axis Vibrational Testing,
Volume 3, #4, April/2009

ASQC Aviation/Space & Defense Div. Newsletter
Improving Replacement Electronics Reliability through Environmental Stress Screening, 6/88

ASQC Electronics Div. Newsletter
Random Vibration for Environmental Testing and for Environmental Stress Screening (ESS) of Electronics Production, Spring '86

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Chemical Engineering Progress
Measurement and Analysis of Machinery Vibration, 6/71

Circuits Assembly (online)
Vibration Testing and Screening of PCBs, 10/2003

Circuits Manufacturing
Stress Screening Faster than Burn-in, 5/84

COTS Journal

COTS Vibration Testing, Nov/Dec 1998
Ways to generate random vibration for PWB screening,
May 2001
What Results from Vibrating Electronic Systems (w/ Starr), April 2002
Vibration Screening Custom Tailored for Electronics with John Starr, April 2003
Simultaneous Multiaxis Vibration Test: Vital for Rugged Box Systems, April 2009
Revamping Methods for Rugged Equipment Testing,
March 2010

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EDN
Random Vibration_Potent Test Tool, 4/67

EN-Genius
What Is A g Unit?, 11/2008

Engineering (British)
Vibrators Vol. 216, #9, 9/76

Engineers' Digest (British)
Vibration Protection Systems, 12/70

Environmental Quarterly (now defunct)

Think You Know All The Answers? So Try These On Your Boss 6/68
In Vibration Testing, Multiple May Indeed be Better than One 9/68
Decibel Scaling Has So a Place in Measurements and Vibration 12/68
Time Sharing: A Way to Better Random Testing, More Equipment? 3/69
How to Shock-It-To-'Em Mostly Depends on the Type of Spec 6/69
Readers Write: Some Comments on the Time-sharing Idea for Random Testing 9/69
Piezoelectrics are Well Known, But There's a Place in the Sun for Piezoresistives, Too 12/69
William Tell in the Dynamics Laboratory_Or: Why Shake Up a Delicious Apple? 3/70
A Review of Remarkable Resonances: Will "W" Always be Chased by Mechanical "Q"? 6/70

Environmental Stress Screening (ESS) Primer (CECOM)
What is Random Vibration?, 9/86

Evaluation Engineering

A Practical Primer on Vibration Testing, 11-12/69
Using Random Vibration in Electronics Evaluation, 7-8/78
What is Meant by Stress Screening of Electronics, 3-4/80 (also appeared in NTIAC Newsletter Vol. 8, No. 6, 12/80)
IES Workshops Address Stress Screening Update, 3-4/81
Stress Screening by Inexpensive Pneumatic Random Vibration, 4/82
Suggestions for Rugged, Reliable Electronic Products, 5-6/82
No Time to Test the Fixture, 7/82
When Does "Burn-in" Become Stress Screening?, 9/82
Tradeoffs Between EM and EH Shakers, 10/82
G²/Hz? What's That?, 11/82
Definitions of Some Common Terms in Vibration and Shock,
Jan-Feb/83
Just What is Random Vibration, 3/83
Sources of Vibration and Shock Information, 4/83
Power On or Off During Screening?, May-Jun/83
Environmental Military Standard Updated, Jul-Aug/83
Multiple-Axis Random Vibration for Stress Screening, 9/83
Decibels Revisited, 10/83
How Much Test Surveillance Should Quality Do/Delegate?,
Nov-Dec/83
Tutorial: Resonance, 1/84
Random Vibration is Gentle, Yet Effective, 2/84
Screen at What Level?, 3/84
What is an Environmental Engineering Specialist?, 4/84
Just Flip a Switch, 5/84
What is a Packaging Engineer?, 6/84
Buying Your First Shaker, Jul-Aug/84
Electrohydraulic Shakers, 9/84
Tutorial: Isolation, 10/84
Can We Afford Not to Screen, Nov-Dec/84
Private Shaker or Commercial Lab?, 1/85
Vibration and Shock Parameters, Which to Measure?, 2/85
Using Accelerometers, 3/85
How Much Variation Between Input Points?, 4/85
Control Input or Control Response?, 5/85
Popularity of Mechanical Shakers Resurges, 6/85
Multi-axis Vibration Testing and Screening, 7/85
Assurance Technologies Need Ex-Test Engineers, 8/85
Reliability and Corporate Profits Up, Life Cycle Costs Down,
9/85
Is Tight Spectral Control Needed for Stress Screening?, 10/85
Shortage of Test Technicians, 11/85
Stress Screening of Large Electronic Racks, 12/85
Random Does NOT Cost More Than Sine, 2/86
Buying a Used Shaker System, 4/86
Yes, Screening Does Apply to Commercial Production, 5/86
Measure Force as well as Acceleration, 7/86
Spares and Repairs Need Screening, Too, 9/86
Analyze Shaker Random Vibrations Above Specified Frequency Range, 11/86
Practical Limits on Vibration Data Acquisition, 2/87
How to Calibrate Accelerometer Systems, 5/87
Testing does not equal Screening, 9/87
How to Refute Objections to ESS, 10/87
Screen In-house or at a Commercial Lab?, 12/87
Don't Worry about ESS at 6g RMS, 4/88
Criteria for Selecting an Environmental Test Lab, 5/88
Psuedorandom? Quasirandom? True Random?, 1/89
ESS - What's New?, 10/89
Ten Commandments for ESS, 5/90
Ten Commandments re Vibration Testing, 11/90
Shaker Displacement Limits Low Frequency Vibration Testing,
5/91
Statistical Degrees of Freedom, 8/92
Time Sharing Test Lab Equipment and Personnel, 9/93
A Look at Buzz, Squeak and Rattle Testing, 7/97
Curing Resonances in Electronic Equipment, 4/98
Don't let the Cost of HALT Stop You - Coauthor Kirk Gray
9/2000
Acoustic Screening - a Sound Solution - coauthor Francois Lafleur, Aug/2001
Response-Optimized Vibration Testing & Screening - with John Starr, 10/2002
Where to Place the Control Accelerometer, 10/2006
MIL-STD-810G Finally Recognizes Multiaxis Shaking, 09/2007
Optimize HALT Results With Best Practices - with Ted Kalal,
3/2009

Experimental Mechanics -
A Management Overview of Seismic Analysis and Testing, 5/77

Experimental Techniques (SEM) - now republished at Quality and Reliability Engineering International

The reliability engineer looks at stress screening, Mar/85
Short communication environmental stressing for quality and reliability engineers, Jan/88

Harsh Environments e-newsletter
Vibration and Shock Testing, April/03

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IEEE Transactions on Reliability

Vibration, Shock and Intense Noise Testing for Reliability,
Vol. R28, 6/79
Commentary: Real Education, Vol. 52 no. 2, Jun/2003

IEEE Spectrum
Recipe for Reliability: Shake and Bake, 12/86

IES Connecticut Newsletter
Who Writes Test Specifications, 9/88

IES Los Angeles Newsletter

Burn-in Now Called Stress Screening, 10/84
Fixture Design (4 parts, adapted from T-M, sect. 19), 1-4/85
What is Meant by Stress Screening of Electronics?, 5/85
Just What Is Random Vibration?, 8/85
Increase Reliability and Corporate Profits, Reduce Life Cycle Costs 1/86 g²/Hz? What's That?, 3/86
Calibration of Vibration Measurement Systems (3 parts)
11-12/86, 1/87
How Do We Replace Older Test Engineers and Technicians?,
2/88
Learning About "Q" from a Cantilever Beam, 3 or 4 /88
What is RMS?, 10/88
The RMS Value of Random Vibration, Winter/88-89
What is Meant by the Term, "Sensitivity?, 1/93

IES San Fernando Valley Newsletter

What is g²/Hz?, 12/87
Who Writes Test Specs?, 1/88
IES Garden State Newsletter Who Writes Test Specs?, 1/88
Learning about "Q" from a Cantilever Beam Submitted, 1/89

IES Garden State Newsletter

Who Writes Test Specs?, 1/88
Learning about "g" from a Cantilever Beam submitted, 1/89

IEST newsletter Southern California Chapter (former IES Orange County Newsletter)
How Do We Replace Older Test Engineers and Technicians?, 4-5/89

The Islander
Industry Adopts Vibration Techniques, Vol. 2, No. 5 3-4/68

ITEM 2002
The Case for Combining EMC and Environmental Testing, coauthors Bill Parker and Tony Masone

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Journal of the Institute of Environmental Sciences & Technology
New Vibration and Shock Test Fixturing Recommended Practice,
Vol 41, No. 3, 5-6/98

The Journal of the Society of Environmental Engineers [renamed "Environmental Engineering"] (British)

Fixture Design Specialists are Needed, 12/73
Much Interest in Computer Control, 3/74
Multiple-Axis Vibration and Shock Tests, 6/74
Specifications for Vibration Isolation in Buildings, 10/74
Dynamic Aspects of Nuclear Power (D.A.N.P. Part I), 6/75
Analyzing Earthquake Motions (D.A.N.P. Part II), 9/75
Shakers for Earthquake Simulation (D.A.N.P. Part III), 12/75
Earthquake Simulation Techniques (D.A.N.P. Part IV), 3/76
Nuclear Power Plant Maintenance (D.A.N.P. Part V), 6/76
Stress Screening of Electronic Modules, 3/81
Machinery Health Monitoring: an Application of Spectrum Analysis, 12/85
Environmental Stress Screening (ESS) of Electronic Hardware,
12/86
Random vs. Multiple Sine Vibration for Exciting Structures,
6/93

Journal of the Reliability Analysis Center
Random vibration & mechanical shock excite all resonances,
4th quarter 2004

Journal of Test and Evaluation (ITEA)
Increasing the Reliability of OT&E Hardware, 10/84

Lab Manager/Vicon

Reliability Engineers Use Environmental Testing Labs,
Oct-Nov/06
When to Use Random (as opposed to sine) Vibration for Testing?, Feb/2007
Why is Random Vibration Quantified in Strange g²/Hz Units?,
Feb/2007
Why Must We Calibrate Our Accelerometers?, Mar/2007

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Machine Design

Vibration Testing - Instrument Selection, 5/69
Vibration Testing - Analysis of Complex Vibrations, 6/69
Vibration-Protection Systems - Using Vibration to Forecast Machine Failure,10/70
Shake Tests for Electronic Assemblies, 1/81

MB Vibration Notebook (defunct)

What Size Drive Rod?, 4/57 Vol. 3, No. 2
Versatile MB Vibration Pickups Useful with Many Instruments,
Vol. 3, No. 3
Bigger-than-ever MB Slide Computer Covers Angular and Random Motion, 3/58 Vol. 4, No. 1
Which is Best, Constant-Peak or Constant Average Vibration Testing?, 10/59 Vol. 5, No. 5
Measuring Damping and Dynamic Modulus for Vibration Isolators in Shear, 10/77 Vol. 9, No. 10

Materials Evaluation

What do Nondestructive and Vibration Testing Have in Common?, 3/82
Vibration Analysis: A New NDT Tool, 4/03

Measurements and Control

Where Can I Get Practical Information on Vibration and Shock?, 11-12/69
Auto Industry Adopts Electrohydraulic Shakers, 1-2/70
Understanding and Measuring the Shock Response Spectrum - with George M. Hieber, 11-12/73
Should You Own a Shaker System?, 3-4/74
RMS Remains Constant, 7-8/76
Military Environmental Standard Updated 10/83 - Earthquake Measurement, 4/89
What is Meant by "Sensitivity?", 2/93

Mechanical Engineering
Random Vibration Testing 10/61 An ME Looks at Vibration Testing,
7/84

MIL Embedded Systems
Multiaxis Shaker Testing, May 2009

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Noise and Vibration Control Worldwide (British)

Vibration, Shock and Intense Noise Testing for Reliability,
1-2/81
An Historical Perspective of Random Vibration for Stress Screening, 6/82
Why Stress Screening is Good for Manufacturers, 12/82

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Plant Engineering
Measuring Shock and Vibration Basic Terminology and Relationships,
2/72

Pulse (South Africa)
Electronics Designers Look at Vibration Testing, 2/82

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Quality

Witnessing Vibration and Shock Tests, 11/75
Further Suggestions Regarding Effective Witnessing of Vibration and Shock Tests, 5/76
What is Random Vibration?, 6/78
Try this Vibration Quiz on Your Quality Engineers, 2/79
Selecting a Commercial Testing Laboratory, 6/80
What is Stress Screening?, 11/84
Starting up ESS, 4/92
Shake Failures out of your Products, 4/95

Quality Progress (ASQC)

Shock, Vibration Testing and Noise During Production Development, 1/77
Stress Screening; Its Role in Electronics Reliability, 6/82
Shake and Bake the Bugs, Out-Sep/90

Quality and Reliability Engineering International

The Reliability Engineer loks at Stress Screening, 6/85
Environmental Stressing for Quality and Reliability Engineers,
7-9/88

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RTCA
paper 745-92/SC125-362 internally published 1/93

Sensors Magazine
An Introduction to Classical Sinusoidal Vibration, 5/04

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Shock and Vibration Bulletin

Combined Environment Testing No. 27 - Part 3, 6/59
A Survey of Practical Problems Encountered Reproducing the Captive Flight Environment by Means of Shakers and Shock Test Machines No. 40 - Part 6, 12/69
Cost-effectively Exciting Vibration Failure Modes for Longtime Reliability Demonstrations No. 47 - Part 3, 9/77

Shock and Vibration Digest
A Comparison of Techniques, Equipment for Generating Equipment,
Vol. 9, No. 10

Society of Automotive Engineers Proceedings
The Future of Random Vibration Screening and Testing in Automotive Engineering (SAE paper no. 870984), 10/89

Sound and Vibration

Vibration Test Equipment, 3/69
Design Guidelines for Vibration and Shock Testing Fixtures,
3/72
Understanding and Measuring the Shock Response Spectrum with George Hieber - Part I, 3/74
Understanding and Measuring the Shock Response Spectrum with George Hieber - Part II, 4/75
Acoustical Environmental Testing, 4/78
A Quick Look at Stress Screening, 11/84
Bolted Connections for Vibration and Shock Tests - with Markus B. Dumelin, 11/88
Accelerometer Calibration eased by Laser Doppler Displacement Meter, 4/95
How to Control Multiple Shakers, 10/95

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Test and Measurement World

How a Shaker Shakes, 8/93
Random Vibration Testing Mirrors Real-World Effects, 2/15/99
Prepare for Better Vibration Tests - with Rick Smith and Dan Reeder of Wyle Labs, 10/99

TEST Engineering and Management

Why Not Upgrade the Environmental Technician?, 6/63
New Device May Obsolete Slip Tables, 8/63
Shaker Force Ratings 10/63 Shaker Table Size, 11/63
Shaker Frequency Range, 12/63
An Explanation of "dB", 1/64
Critical Frequencies, 2/64
Accelerometer Calibration Methods, 3/64
Precautions for Bolted Connections, 4/64
Protective Devices, 5/64
Purchasing a Shaker System, 6/64
Charge Amplifiers, 7/64
Instrumentation for Slip Tables, 8/64
Suggestions for Shaker Maintenance, 9/84
The Vibration System Specialist, 10/64
√Area = RMS G Level, 11/64
Automatic Plotting of Vibration Parameters vs. Frequency,
12/64
The True RMS Voltmeter, 1/65
Vibration Computers Save Time, 2/65
Suggestions for Maintenance of Power Amplifier, 3/65
Vibration Tests Require and Oscilloscope, 4/65
Vibration Testing, Present and Future, 5/65
Velocity Considerations in the Design and Use of Electromagnetic Shakers, 6/65
Resonance Searching Aided by Remote Oscillator, 7/65
More on True RMS Voltmeters (incl in 1/65), 8/65
No Time to Test the Fixture, 9/65
Misuse of Auxiliary Horizontal Tables, 10/65
Shaker Isolation, 11/65
Three-Attitude Test Fixture May be False Economy, 12/65
Electronics Background Desirable, 1/66
Single Team Does Best Job, 2/66
Vibration Training for Maintenance Specialists, 3/66
Piezoelectric-Hydraulic Analogies, 4/66
Piezoelectric-Hydraulic Analogies, cont'd., 5/66
Bubble Coalescence in Vibrating Liquid, 6/66
Definitions of Some Common Terms, 7/66
Faulty Readings Caused by Inferior Connectors on Accelerometers, 8/66
Speed of Sound Limits Size of Vibrating Structures, 9/66
Standardized Vibration Testing, 10/66
Enforcing Standards of Vibration Testing, 11/66
Lissajous Patterns, 12/66
Vibration Isolators_A simplified Discussion, 2/67
Modifying Shaker Servos for Newer Sine Test Specifications,
3/67
An Inexpensive Piggy-Back Chamber for Use with Shakers,
4/67
The Planning of Aerospace Vibration Tests and Programs,
5/67
Who Care About the State of the Art?, 6/67
"Glued" Vibration and Shock Test Fixtures, 7/67
Vibration and Shock Tests Do Not Duplicate Service Environments, 8/67
Power Factor Correction, 9/67
Rotary Power Supplies for Electromagnetic Shakers, 10/67
A Shaker System is Only the Beginning, 11/67
Laminated Vibration Fixtures, 12/67
Vibration Isolation Requires Freedom to Move, 1/68
Use of Recording Oscillographs in Sound, Vibration and Shock Measurements, 5/71
Definitions of Some Common Terms in Vibration and Shock,
6/71
Frequency Superposition Nomograph, 8/71
Conversion to Metric Units, 9-10/71
Control Point Averaging, 1-2/72
Take Time to Evaluate Test Fixtures, 3-4/72
How to Demonstrate that All Frequencies are Present in Wide-Band Random Vibration, 5-6/72
Preload Indication Assists in Proper Tightening of Bolts,
7-8/72
Vibration Testing at Line Frequency, 9-10/72
What do Electromagnetic Shaker Force Ratings Mean?,
11-12/72
What do Shaker Frequency Ranges Mean?, 2/73
How Important are Shaker Table Size and Weight?, 4/73
Handy Vibration Formulas, 6/73
Vibration and Sound Analysis Takes Electronic Filtering,
10-11/73
Reducing In-Transit Damage to Fruit: A Novel Shaker Application, 12/73-1/74
Who Needs a Shaker?, 2-3/74
Audio Monitoring of Shaker Motion, 6-7/74
Upgrading Your Shaker Motion, 6-7/75
Dynamic Aspects of Nuclear Power - Part I, 8-9/75
Dynamic Aspects of Nuclear Power - Part II, 10-11/75
Dynamic Aspects of Nuclear Power - Part III, 12/75-1/76
Minicomputer Controls of Vibration and Shock and Acoustical Tests, 2-3/76
Inexpensive Approaches to Random Vibration Testing, 4-5/76
Structural Model of Building is Valuable Learning Tool, 6-7/76
Should Test Technicians Be Certified?, 8-9/76
Standard Environmental Test Methods, 10-11/76
Reducing Unwanted Motion in Electromagnetic Shaker Systems, 12/76-1/77
Gross Errors in Accelerometer Calibration and Use, 2-3/77
The Duality of Time and Frequency, 4-5/77
Vibration Measurement as a US Navy Quality Control Tool,
8-9/77
In Wide Band Random Vibration, All Frequencies are Present,
4-5/78
The Shortage of Environmental Test Technicians, 6-7/79
Laboratory Managers: Avoid "Tunnel Vision", 6-7/80
Test Industry Outlook for 1982 and Beyond, 1/82
Selecting Dynamic Instrumentation, 8-9/82
Shortage of Environmental Test Technicians Continues,
10-11/82
Test Industry Outlook for 1984 and Beyond, 12/83-1/84
What can Random Vibration Do for Me?, 6-7/84
Measure Static Deflection to Predict Dynamic Behavior, 4-5/85
Test Early!, 6-7/85
Test Engineers: Advise Production on Stress Screening,
8-9/85
How You Can Lower Life Cycle Costs by "Upfront" Environmental Engineering (with Howard Schafer), 10-11/85
Opening Pandora's Box: One Shaker is Never Enough,
12/85-1/86
What does "Sensitivity" Mean?, 4-5/86
Failure! Can it Be Better Than Success?, 8-9/86
EESs: How Must They be Trained?, 10-11/87
The Future of Random Vibration Screening and Testing in Automotive Engineering, 6-7/87
IBM Stress Screens a New Printer, 12/87-1/88
Solid-state Shakers for ESS, 6-7/88
Using a Pneumatic Hammer for ESS, 12/88-1/89
Buying a Used Shaker System? Here are 10 Questions to Ask First (w/Andrew C. Grimaldi), 6-7/90
Shaker Waveform Distortion, 6-7/91
Small-Volume ESS, 12/91-1/92
Is the Old Fixture Good Enough?, 6-7/92
What is Correlation?, 6-7/93
Multiple Shakers are req'd for Multi-Axis Vibration, 10-11/93
A new series "Taking a Look at Vibration Testing" will commence 1/94.with For ESS, Thermal Ramping isn't Enough,
12/93-1/94
Multiple Sine + Random for Automotive Vibration Testing,
4-5/94
We Made Our Own Shaker, 6-7/94
Hand-arm and Whole-body Vibration, 8-9/94
Can We Eliminate Cushioning?, 10-11/94
Review of Tri-Service ESS Guidelines, 12/94-1/95
Comparison Calibration of Accelerometers, 4-5/95
Definitions, 6-7/95
Can We Safely Compress Time?, 10-11/95
Shall we Measure Motion? or Force? or Both?, 4-5/96
Two Kinds of deciBels?, 6-7/96
SAE Training in Dynamics, 8-9/96
Must we Simulate the "Real World", 10-11/96
Vibration Testing Important to Automotive Development,
12-1/97 SR25
Stumbling Into a Career, 2-3/97 SR 26
My Computer is Infallible, 4-5/97 SR 27
The Handheld Accelerometer, 5-6/97 SR 28
Microphones for automotive buzz, squeak & rattle (BSR) investigations, 8-9/97 SR 29
Shake tests for medical devices, 10-11/97 SR 30B
Accelerometer Calibration Certificate Means What?,
12/97-1/98 SR 31
I'm Just a Beginner, 2-3/98
Given an SPL of 58 dB - What does it mean?, 6-7/98 SR 33
Worth Noting: The ASTE, 8-9/98 SR 35 SR 35-1
Improved Vibration Calibration at NIST, 12/98-1/99
NIST.doc Forty Years of Advances in Vibration Testing,
2-3/99 SR 36
Why not measure shock mechanically?, 6-7/99
Have testing cutbacks contributed to launch failures?, 8-9/99
Automotive lexicon introduces dynamics, 10-11/99 SR 40
Vibration Test, From There To Where?, 12/99-1/00 SR 42
Save Keystrokes: "Tu" replaces "g^2Hz", 2-3/00 SR 43
Shock & Vibration Benefits from Technical Societies,
4-5/00 SR 44
Definitions of terms commonly used in vibration & shock plus BSR Testing, 6-7/2000
Lessons Learned at JPL from the HESSI Mishap, 8-9/2000
Drop Tests vs Shock Table Transportation Tests - Coauthor Matt Daum, 10-11/2000
Much Automotive Vibration Testing is Overly Severe,
12/00-01/2001 SR#46
What can I do to reduce warranty costs?, 2-3/2001
Interviewing vibration and shock technologists, 4-5/01
Mechanical Engineers fourier analyser, 6-7/01
Road Inputs Contain All Frequencies Simultaneously, 8-9/01
So You're Going To Witness A Vibration Test, 10-11/01
Buzz, Squeak & Rattle (BSR) Testing, 12/01-1/02
Review Harris S&V Handbook, 2-3/02
Remote Control Of Vibration Test, 4-5/02
PSD in g²/Hz explained, 6-7/02
Accelerated dynamics testing, 8-9/02
Accelerated Automotive Testing, 11/2002
Accelerated Testing - in-house or outside?, 12/02-1/03
Where can I get information about test engineering,
2-3/2003
Illuminating "dark" areas of testing technology through training, 4-5/2003
Thow shalt not stack thy resonances, 6-7/2003
Band Splitting Is Forbidden, 8-9/2003
What do you mean , “Vibration”?, 10-11/2003
Dare I trust this data?, 12/2003-1/2004
Common shock and vibration terms defined, 2-3/2004
Calibrate Accelerometers using sine or random?, 4-5/2004
In Vibration Testing, Where to Locate the Control Accelerometer?, 6-7/2004
Does the B-52 exemplify reliability?, 8-9/2004
Fancy servohydraulics simulate the road, 10-11/ 2004
Test Lab Stories:

Designer should visit test lab, Dec/Jan 2005
Accelerometer mounting techniques, Feb/Mar 2005
Testing outside the operating regimes, Apr/May 2005
Acoustic noise testing, une/July 2005
Pneumatic Vibrators, Aug/Sept 2005
Automotive Test Random Vibration Better Non-Stationery,
Oct/Nov 2005
Joe learns about test chambers, Dec/Jan 2006
NFF or No Fault Found, Feb/Mar 2006
IEST helps Joe with Bio-Medical Equipment Environmental Test, Apr/May 2006
Vibration Testing Oversized Loads, June/July 2006
Same Test at Chinese Lab?, Aug/Sept 06
Should We Offer BSR Testing?, Oct/Nov 06
Torsional Vibration Testing, Dec06/Jan 07
Why Require Random Vibration Testing?, Feb/Mar 07
Long Stroke Shaking, April/May 07
Sawtooth Shock Pulse Testing, Jun/July 07
Accelerated Testing, Aug/Sept 07
Why Not Measure Vibratory Displacement?, Oct/Nov 07
The Vibrating Christmas Tree, Dec/Jan 08
Joe Proposes Multiaxis Shaking, Feb/Ma r08
Comparison Calibration of Accelerometers?, Apr/May 08
Why perform sinusoidal vibration tests? , Jun/Jul 08
What is Vibration Testing?, Aug/Sep 08
What is Vibration Testing? (cont.), Oct/Nov 08
Climatic + Vibration Testing, Dec/Jan 09
Can Helen Operate a Shaker?, Feb/Mar 09
Why Did the Lab Buy a ‘Scope?, Apr/May 09
Symmetrical Shock Pulses are Disappearing, Jun/Jul 09
Diligent Customer – or Hooray! Three Prototypes,
Aug/Sep 09
Can a Computer Replace a Shaker Technician?, Oct/Nov 09
Who Should Design Vibration Test Fixtures?, Dec/Jan 10
Climatic + Horizontal Vibration Testing, Feb/Mar 10

VME Bus Systems
"What is the meaning of PSD in g²/Hz?", Dec 2005

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Textbooks by Wayne Tustin

A minimal mathematical Introduction to the Fundamentals of Random Vibration & Shock Testing - HALT, ESS & HASS - also Measurements, Analysis and Calibration © 2005
ISBN: 0-9741466-0-9

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Master List of Presentations by Wayne Tustin

4th Annual Int'l Workshop, Commercialization of Military & Space Electronics, Los Angeles
Tutorial "Accelerated Testing and Screening of COTS Equipment",
Jan-Feb 2000

18th Aerospace Testing Seminar
"Response-Controlled Vibration Testing", Manhattan Beach, CA March 1999

20th Space Simulation Conference
"Introduction to simulating Liftoff Vibration", Annapolis, MD,
October 26 1998

A2LA Assessor Conclave
“Common Vibration Test Errors”, Columbia Maryland, March 2006

Aerospace Testing Expo NORTH AMERICA (Long Beach)

"Multiaxis Random Vibration for HALT and HASS”, 11/05
“Preventing BSR in New Automobiles”, Novi, October 2006
“Introduction to Random Vibration & Shock Testing”, Anaheim, November 2006
“Simultaneous Multiaxis Electrodynamic Shaker Vibration Testing”, October 2009

AutomotiveTesting Expo North America

“Preventing BSR in New Automobiles”, Novi, October 2006
“Upcoming Vibration Test Changes Per MIL-STD-810G”, Novi,
October 2007

ASME
Paper 61-AV-12, Aviation Conference, Los Angeles on "Automation in Random Vibration Testing", 3/61

ASQC - Annual Quality Congress Meetings

"Random Vibration Tests to MIL-STD-781C"
Technical Conference Transactions, Chicago 1978
"Random Vibration for Stress Screening of Electronics"
Quality Congress Transactions 1981
"Random Vibration Stress Screening"
Quality Congress Transactions, San Francisco 5/82
"How Does Quality Control Know That Vibration Tests are Being Conducted According to Specifications?" - Other ASQC meetings: Western Region Quality Control Conference, 1968
"An Introduction to Random Vibration" - ASQC Electronics Manufacturing Conference, Sherman Oaks, CA 4/82
"Electronics Reliability Enhanced by Stress Screening"
Quality in Electronics (QIE) Raleigh, NC 9/82
"A Management Overview of Random Vibration for Environmental Testing and Stress Screening"
ASQC California Quality Week, San Jose 3/83
"A Management Overview of Random Vibration for Environmental Testing and Stress Screening"
San Fernando Valley 4/83
"What is g²/Hz?" - Western Regional '91, Los Angeles 1/91
"Highly Accelerated Stress Screening" - LA Chapter, IES 1/93

CEEES – Nurnburg, Germany
"Shock Response Spectrum SRS", 5/05

COTScon West 2001, San Diego
“Vibration and Shock Isolation – Trends and Solutions”, Dec 2001

DoD Shock and Vibration Symposia

"Cost-Effectively Exciting Vibration Failure Modes for Longtime Reliability Demonstrations," Albuquerque, NM, 10/76
Also appeared in Shock and Vibration Bulletin, 9/77) "Pitfalls in Shock & Vibration Measurements", Las Cruces, NM, 10/92

IEEE Accelerated Stress Testing

Tutorial, "Electrodynamic vs. Pneumatic Shakers for Stress Testing", Dallas TX, 10/97
Tutorial, "Why Random Vibration For Stressing/Screening?" Wakefield, MA 10/99
Ditto Boulder, CO 10/2000
Ditto Seattle, Sept 2001
“Analog, Not Digital, Monitoring During AST “, San Francisco, October 2006
Tutorial “History of Multiaxis Vibration for Accelerated Testing”, Greenbelt MD, October 2007

International Modal Analysis Conference
"Warning: Modal Test Sensors can Lie" Santa Barbara 2/98

Institute of Environmental Sciences Annual Meetings

"Increasing Utilization of Environmental Technicians,"
Los Angeles 1963
"Sinusoidal Vibration Testing," Philadelphia 1964
"Random and Complex Vibration, Testing," Philadelphia 1964
"Shock and Vibration Test Equipment," St. Louis 1968
"Quantized Goals for Design of Vibration and Shock Test Fixtures," New York 1972
"What Made You Think Johnny Could Handle This Course?"
Washington, DC 1974
"Mechanical and Pneumatic Shakers for MIL-STD-781C,"
Los Angeles 1977
"Intense Noise Testing," Seattle 1979
"Low Cost Random Vibration Testing," - with co-author Bill Cox, Los Angeles 1981
"Displacement vs. Velocity vs. Acceleration vs. Jerk"
Nashville, 1992
"Control Response Rather than Input," Nashville 1992
"Pitfalls in Dynamic Force Measurements," - with David A. Change and John M. Kubler, Las Vegas 1993
"Recommended Practices: Vibration and Shock Test Fixtures,
1994
"Recommended Practices: Vibration and Shock Test Fixtures,
1995
"Planning your Vibration/Shock Test Facility", 2002
"Fundamentals of Shock Testing" tutorial, 2003
“Multiaxis Random Vibration for HALT and HASS” tutorial,
Phoenix, AZ, May/2006
“Simultaneous Multiaxis Vibration Testing & Stress Screening”, Anaheim CA, Jan 2008
“Introduction to Random Vibration”, Chicago IL, May 2008
“Attaching Test Articles to Shakers”, Chicago IL, May 2008
"Simultaneous Multiaxis Vibration Testing & Stress Screening”, Chicago IL, May 2008
"Simultaneous Multiaxis Vibration Testing & Stress Screening”, Chicago IL, May 2009

Instrument Society of America
"Vibration and Noise Measurement and Analysis" Annual Meeting,
Philadelphia 5/75

Joint Technology Exchange Group – JTEG
ESS at the Test Bench Scranton, PA, July/2003

Measurement Science Conference

"Fundamentals of Vibration and Shock Measurements and Calibration", Anaheim, CA, January/1999
"The Calibration Technician meets Accelerometers",
Anaheim, CA, January/2003

National Institute of Packaging & Handling Engineers
"Vibration and Shock Sensors Can Lie", Reno, 11/97

NEPCON 2001 Anaheim
"Random Vibration for Developmental Testing and for Post-Production Screening of High-Rel Electronic Products", Feb/2001

Packaging Progress Seminar
"Laboratory Simulation of Transportation Shock and Vibration"
Rochester, NY 10/71

PCB West

"Designing PCBs to Withstand Harsh Environments",
San Jose, California, March 2002
"Vibration Testing and Screening of PCBs",
San Jose, California, March 2003

Range Commanders Council

"Environmental Stress Screening,"
16th Transducer Workshop, San Antonio, TX 6/91
"Acceleration and Force Transducer Errors,"
17th Transducer Workshop, San Diego, CA 6/93

Reliability and Maintainability Symposia
"Why Test with Random Vibration?" Pg. 235, San Francisco, 1/80

Reliability Testing Institute
"Vibration, Shock and Intense Noise Testing"
Third Annual Meeting, Tucson, 4/77

SAVIAC (formerly DoD Shock and Vibration Symposia)

"Cost-Effectively Exciting Vibration Failure Modes for Long-Time Reliability Demonstrations," Albuquerque, NM, 10/76 (also appeared in Shock and Vibration Bulletin, 9/77)
"Pitfalls in Shock & Vibration Measurements",
Las Cruces, NM, 10/92
"Vibration and shock test fixture design",
San Diego, CA, 10/2003
"Shock response spectrum tutorial", Newport, RI, 10/2005
“Multiaxis Random Vibration”, Destin, FL, 10/2005
“Vibration and Shock Test Fixture Design”,
Monterey, CA, 10/2006
“Vibration and Shock Test Fixture Design”,
Philadelphia, November 2007
“Simultaneous Multiaxis Vibration Testing & Stress Screening”, Orlando, Florida, November 2008
“Simultaneous Multiaxis Shaking”,
San Diego CA, October 2009

Society of Automotive Engineers Noise and Vibration Conference

"The Future of Random Vibration Screening and Testing in Automotive Engineering,"
Traverse City, MI 4/87 SAE paper no. 870984
Taught SAE course #92030 on "Automotive Vibration Testing" at '93 N & V Conference 5/93 and Dearborn (pass car meeting) 10/93
"Accelerometer Transverse Resonance Effects," (principal author Robert L. Kinzel) '89 Aerospace Technical Conference at Anaheim, CA 1989, SAE paper no. 892380

Society of Environmental Engineers Conference (SEECO)
"What is Random Vibration?" England, 7/82

Society for Experimental Stress Analysis Annual Meeting
"Basic Considerations for Simulation of Vibration Environments" Seattle, WA 10/72 [Also appeared in Experimental Mechanics, 9/73]

Spacecraft and Launch Vehicle Dynamic Environments
"Multiaxis Random Vibration Testing prior to Launch of Spacecraft and other Vehicles" Hawthorne, CA, 6/29/06

Other articles that might be of interest to our visitors:

The Achilles Heel of Modern Electronics
by Brent Sorensen, Universal Synaptics

ESS aids automotive test
Greg Reed, Contributing Technical Editor - Test & Measurement World, 3/1/2005

A Look at Environmental Testing
by Larry Adams (May, 2003)

It’s the Analysis that Counts
by John Starr and Wayne Tustin

How to Select the Right Vibration Testing Service
by Wayne Tustin, Equipment Reliability Institute and Rick Smith, Wyle Laboratories, Inc. (published at "The BestTest Newsletter")

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Pickin' up Good Vibrations

A Word about Wayne

Wayne Tustin

Master list of articles by Wayne Tustin

Textbooks by Wayne Tustin

Master List of Presentations by Wayne Tustin