Structural Damping by Means of Viscous Fluid Layers
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Elbert L. Marsh', 'PO_EMAI': None, 'PO_PHON': None}
Serious problems may arise when uncontrolled vibrations occur in                machine systems, causing component and system wear and ultimate                 failure, as well as noise problems.  This research envisions a method           of reducing the vibrations and the problems associated with them.  It           is a combined theoretical and experimental project dealing with the             measurement of damping resulting from thin fluid layers trapped between         either stationary plates or objects in relative motion.  Preliminary            work in this area suggests that this method of damping may be very              effective at low frequencies where conventional treatments fail.  The           work is fundamental in nature but potentially applicable to the                 effective design of lightweight, low-frequency damping treatments.
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[{'Code': '1445', 'Text': 'DYNAMICS & CONTROL'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
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