Study of Characteristics of Dry Friction Damping.
Annual technical rept. 1 Mar 83-1 Mar 84,
UNITED TECHNOLOGIES RESEARCH CENTER EAST HARTFORD CT
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This report pertains to the overall problem of estimating damping due to dry friction forces induced at interfaces of vibrating components. The phase of the effort reported here contains the summary of a literature survey and identifies the scope of research needed. The survey clearly indicated the complex processes involved during rubbing of one component relative to another bringing into play a host of parameters. Very limited data, especially of a fundamental nature, appears to be available in regard to dry friction in a vibratory environment. An analytical and corresponding experimental plan is presented and discussed. These plans includea considerations of new laws of friction appropriate to vibration analyses and b corresponding basic experiments from which a data base can be developed for use in design of structural components. Keywords Aerodynamic damping.