The effects of natural aging on fleet and durability vehicle engine mounts from a dynamic characterization perspective

Document Type

Conference Proceeding

Publication Date



Keweenaw Research Center; Department of Mechanical Engineering-Engineering Mechanics


Elastomers are traditionally designed for use in applications that require specific mechanical properties. Unfortunately, these properties change with respect to many different variables including heat, light, fatigue, oxygen, ozone, and the catalytic effects of trace elements. When elastomeric mounts are designed for NVH use in vehicles, they are designed to isolate specific unwanted frequencies. As the elastomers age however, the desired elastomeric properties may have changed with time. This study looks at the variability seen in new vehicle engine mounts and how the dynamic properties change with respect to miles accumulated on fleet and durability test vehicles.

Publisher's Statement

Copyright © 2001 Society of Automotive Engineers, Inc. Publisher’s version of record:

Publication Title

SAE Technical Papers