Accession Number : ADA259764


Title :   Vibration Control Experiments on a 12-Meter Cantilever Truss Structure


Descriptive Note : Final rept. Nov 1987-Nov 1991


Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS


Personal Author(s) : Oezguener, Uemit ; Yurkovich, Stephen ; Dix, Peter ; Lenning, Layne ; Bruner, Anne ; Cheung, Ken


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259764.pdf


Report Date : Aug 1992


Pagination or Media Count : 116


Abstract : Control objectives for large flexible space structures such as reorientation maneuvers, vibration suppression, fine pointing, and precision shape control require reliable and robust control algorithms. The modal characteristics of such structures including large order, low frequency with low damping, and closely spaced modes of vibration demand complexities in the control design which go beyond traditional methodologies and present difficult challenges. The Large Space Structures Technology Program at the Flight Dynamics Directorate of the Wright Laboratory was begun as an in-house experimental research program in the dynamics and control of flexible space structures. The 12-Meter Truss Active Control Experiment has been conducted as part of the Large Space Structures Technology Program to address modeling and active vibration damping issues on a representative laboratory-scale model of future large flexible space structures. Our objectives, as part of the 12-Meter Truss Active Control Experiment, have been to identify several controller design techniques for active vibration damping, to examine these techniques via simulation studies, and to implement a number of the designs on the 12-meter truss. This report describes experiment, modeling, and the design and testing of several control approaches on the 12-meter truss.


Descriptors :   *SOFTWARE ENGINEERING , *SPACECRAFT , *DAMPING , *CANTILEVER BEAMS , *TRUSSES , ALGORITHMS , FREQUENCY , DENSITY , DYNAMICS , DEFORMATION , COORDINATES , MOMENT OF INERTIA , FLEXIBLE STRUCTURES , SUPPRESSION , LOW FREQUENCY , PLASTICS , MANEUVERS , PARTIAL DIFFERENTIAL EQUATIONS , ALUMINUM , MODULUS OF ELASTICITY , FINITE ELEMENT ANALYSIS , SCALE MODELS , VIBRATION , CONTROL , COMPUTERIZED SIMULATION


Subject Categories : Computer Programming and Software
      Unmanned Spacecraft
      Manned Spacecraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE