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Active damping of modal vibrations by force apportioning
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hallauer Jr., W. L. |
| Copyright Year | 1980 |
| Description | Force apportioning, a method of active structural damping based on that used in modal vibration testing of isolating modes by multiple shaker excitation, was analyzed and numerically simulated. A distribution of as few forces as possible on the structure is chosen so as to maximally affect selected vibration modes while minimally exciting all other modes. The accuracy of numerical simulations of active damping, active damping of higher-frequency modes, and studies of imperfection sensitivity are discussed. The computer programs developed are described and possible refinements of the research are examined. |
| File Size | 2056035 |
| Page Count | 48 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800019871 |
| Archival Resource Key | ark:/13960/t3mw77q61 |
| Language | English |
| Publisher Date | 1980-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Stiffness Matrix Vibration Damping Structural Vibration Modal Response Runge-kutta Method Force Distribution Equations of Motion Vibration Tests Thrust Computer Programs Fortran Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
