Engineering Technical References & FAQ's



This information is provided to assist design engineers faced with the challenge of protecting equipment against the damaging effects of shock and vibration.

In today's world increasingly sophisticated equipment and harsh environmental conditions mean that engineers are continually faced with the need to improve shock and vibration isolation. Electronic equipment is often considered for use in environments that are far from compatible with their original design specifications. Even if the equipment survives initial vibration testing the life expectancy and reliability will be considerably reduced unless suitable protection is provided.

Equipment installed in military vehicles, ships and aircraft is subject to severe shock conditions. Merely strengthening the equipment to withstand these conditions often means an unnecessary increase in weight, size and cost. The use of carefully selected isolators is nearly always more effective in protecting the installation.

This information describes theory and methods that may be applied to any vibration or shock protection problem enabling engineers to hold meaningful discussions in the early stages of a design concept where it is critical to quickly establish basic parameters to asses the correct type of mounting system needed.

Should the problem be beyond the capability of a standard catalog product, we have the engineering expertise and facilities to design a special engineered solution that meets the customer's needs.

Technical FAQ's

Title
FAQ - Friction Damped mounts without Load vs. Deflection Data
FAQ – 2 Stage Isolation Systems Advantages and Challenges
FAQ – L-Mount and H-Mount Strain Sensitivity 
FAQ - Elastomer Color and Isolator Color Codes 
FAQ - Elastomeric Isolators and Outgassing
Isolator Application Questionnaire - Form 
Isolator Application Questionnaire - Instructions 
FAQ - Elastomer Temperature Range 
Shock and Vibration Isolation: Terms and Definitions 
FAQ – “All Attitude” Isolator Orientation 
Catalog Isolator Properties Matrix 
FAQ - Bolt Torque Guidelines 
FAQ - Aircraft Electronics Isolation 
FAQ - Rubber Isolator Installation 
FAQ - Military Ground Vehicles Electronics Isolators 
FAQ - Shipboard Electronics Isolators
FAQ - On-Highway Cab Mounts 
FAQ - Cab Mounts for Off-Highway Equipment 
FAQ - Engine Mounts for Off-Highway Equipment
Helpful Hints for Filling Out Barry Controls “Engine Mounting Analysis Form” 
Engine Mounting Analysis Form
FAQ-Effects of Elastomer Strain Sensitivity on Natural Frequency
FAQ – Focused Mounting Systems
FAQ – Improving MTBF of Electronics with Vibration Isolators 
FAQ – Durometer and Stiffness 
FAQ – Custom Isolator Designs 
FAQ – Multidirectional Loading on Isolators 
FAQ – Core Spin in Cupmount Installations
FAQ – Base Mounting and Center-of-Gravity (CG) Mounting 
FAQ – Shelf Life of Elastomeric Isolators 
FAQ – Support Structure Stiffness
FAQ – Isolator Load Ratings 
FAQ – ASTM D2000 callouts 
Random Vibration
Passive Shock Isolation 
The Use of Isolators for Attenuating Dynamic Disturbances Generated by Small Internal Combustion Engines 
Ballistic Shock Attenuation for Armored Ground Vehicle Electronics, Analysis and Validation 
Isolator Properties Matrix (PDF)


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