BODY PANEL HAVING IMPROVED STIFFNESS AND METHOD OF MAKING
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United States of America Patent
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app pub date -
Apr 28, 2010
filing date -
Feb 9, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A damping system includes a base substrate, a constraining substrate and a non-foam damping layer between them. The base substrate has greater lateral dimensions than the constraining substrate. Consequently, the damping system is provided in a localized region of the base substrate. The damping system can be provided, for example, at a region of the base substrate where a longitudinal projection or moving linkage extends through an opening in the base substrate, such as a steering column through a dashboard panel. In this embodiment, a composite opening is provided through the damping system to accommodate the extending projection or linkage, and the damping system is effective to provide localized damping against vibrations due to the through-the-panel linkage. The damping system provides these benefits without increasing the overall thickness of the body part, and without providing damping and constraining layers across its entire lateral expanse, saving cost and weight. Methods of making such a damping system are also provided.
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Cited Art Landscape
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