Design of Reduced-Order Controllers on a Representative Aircraft Fuselage
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The traditional approach to minimizing structural vibration implements either passive dampers or global model-based active controllers. Unfortunately, passive control becomes massive for control of low frequency disturbances. Model-based active controllers are difficult to apply to complex structures, because the model needs to be of roughly the same order as the system that it describes in order to achieve robust performance. Modeling errors due to mismodeled dynamics, missed dynamics, or time-varying dynamics can be performance degrading and potentially destabilizing . This paper focuses on the lightly damped and modally dense systems where modeling errors are more significant.
KeywordsWeighting Vector Sensor Array Loop Transfer Function Transfer Function Matrix Modal Transducer
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- M. S. Andersson and E. F. Crawley. Structural shape estimation using shaped sensors. In AIAA/ASME/ASCE/AHS Structures, Structural Dynamics & Materials Conference, volume 5, pages 3368–3378, 1995.Google Scholar
- M. L. Fripp. Weighted Arrays for Modal Isolation and Active Control of Complex Structures. PhD thesis, Massachusetts Institute of Technology, Department of Aeronautical and Astronautical Engineering, 2000.Google Scholar
- M. L. Fripp, M. J. Atalla, N. W. Hagood, C. Savran, and S. Tistaert. Reconfigurable arrays for broadband feedback control of aircraft fuselage vibrations. In 10 th International Conference on Adaptive Structures and Technologies, volume 1, pages 447–456, 1999.Google Scholar
- M. L. Fripp, D. Q. O’Sullivan, S. R. Hall, N. W. Hagood, and K. Lilienkamp. Testbed design and modeling for aircraft interior acoustic control. In SPIE Conference on Smart Structures and Integrated Systems, volume 3041, pages 88–99, 1997.Google Scholar
- Michael L. Fripp and Mauro J. Atalla. A review of modal sensing and actuation techniques. Shock and Vibration Digest Journal, 33(1), 2001.Google Scholar