You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Active Modal Control for Smart Structures
Daniel J. Inman
Philosophical Transactions: Mathematical, Physical and Engineering Sciences
Vol. 359, No. 1778, Experimental Modal Analysis (Jan. 15, 2001), pp. 205-219
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/3066401
Page Count: 15
You can always find the topics here!Topics: Damping, Matrices, Sensors, Smart structures, Coordinate systems, Bending, Smart materials, Control theory, Velocity, Equations of motion
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Of the multitude of control techniques available, modal control is a favourite amongst structural dynamicists because of its connection to design, intuition and testing. Here we review the state-of-the-art in modal control, point out its weaknesses and strengths and reveal its important connection to the emerging technology of smart structures. Modal control became a powerful tool in the early 1980s when applied in the arena of large flexible spacecraft. However, modal based methods then fell into disfavour as the problems of control spill-over (coupling to truncated modes and unmodelled dynamics) could not be prevented in structures with significant flexibility. Recently, however, modal control methods have reappeared in smart structure's applications because the ready availability of numerous sensors and actuators renders the control spill-over problem manageable. In addition, a number of advanced theories sorted out the spill-over problem. These issues are discussed here, complete with expository numerical examples and experimental verification that modal control, when used with smart structures, is an effective and simple solution to problems associated with control of flexible structures.
Philosophical Transactions: Mathematical, Physical and Engineering Sciences © 2001 Royal Society