Development of Analytical Methods for Particle Damping
Abstract
Particle dampers are highly nonlinear auxiliary mass dampers whose energy dissipation, or damping, is derived from a combination of mechanisms including plastic deformations, external and internal friction, and momentum transfer. To complicate matters, the predominate energy dissipation mechanism may vary depending on parameters such as cavity fill ratio, vibration amplitude levels, etc. Research has indicated that particle dampers could be a viable option for extreme environment applications, such as at elevated temperatures and/or under centrifugal loading. However, to date, the lack of a robust design methodology has limited particle damper usage to trial-and-error applications. The objective of this effort is to develop the necessary design methodology to enable the successful design and application of particle dampers. Experimental and analytical efforts toward this goal are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1999
- Accession Number
- ADA451489
Entities
People
- Bryce L. Fowler
- Eric M. Flint
- Michael L. Drake
- Steven E. Olson