LONG PERIOD GRAVITY GRADIENT DAMPING,
Abstract
Preliminary findings are reported on the long period damping capacity of damper springs. The basic problem confronting this long period investigation has been the fact that the periods of interest are in the order of one hour and greater and therefore tend to preclude direct measurement experiments. Methods are presented whereby the damping capacity can be predetermined plus the results of recent long period experiments. It is shown that since internal friction is a manifestation of material anelasticity, Boltzmann's Superposition Principle can be used to develop a correlation between internal friction and anelastic creep. By simply measuring the fundamental anelastic properties of each damper spring, it therefore becomes possible to generate complete damping versus frequency curves.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 02, 1964
- Accession Number
- AD0622490
Entities
People
- B. E. Tossman
Organizations
- Johns Hopkins University Applied Physics Laboratory