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Independent modal/rate feedback control of a cantilever beam applying reciprocal modal filter vectors
Modal space active control of a cantilever beam is investigated. Reciprocal Modal Filter Vectors are computed from experimental data. These vectors, along with the pole estimates from this test, are used in an Independent Modal Space Controller (IMSC) framework. The filter vectors map the system's response to Modal Space. In this domain, the control problem is reduced to several parallel, uncoupled single degree of freedom (SDOF) second order systems. A low order rate, feedback regulator is implemented to achieve user prescribed pole (mode) damping. A modified Luenberger Estimator is used in conjunction with this controller. The estimator is designed explicitly to estimate state velocity from acceleration measurements. This implementation simplifies the controller design and model order estimation, which is a significant problem with adaptive schemes such as Self Tuning Regulators. Implementation issues such as control spillover, forcing vector selection, modal participation vector calculation time delay compensation and filter fidelity are discussed.
Independent modal/rate feedback control of a cantilever beam applying reciprocal modal filter vectors
Modal space active control of a cantilever beam is investigated. Reciprocal Modal Filter Vectors are computed from experimental data. These vectors, along with the pole estimates from this test, are used in an Independent Modal Space Controller (IMSC) framework. The filter vectors map the system's response to Modal Space. In this domain, the control problem is reduced to several parallel, uncoupled single degree of freedom (SDOF) second order systems. A low order rate, feedback regulator is implemented to achieve user prescribed pole (mode) damping. A modified Luenberger Estimator is used in conjunction with this controller. The estimator is designed explicitly to estimate state velocity from acceleration measurements. This implementation simplifies the controller design and model order estimation, which is a significant problem with adaptive schemes such as Self Tuning Regulators. Implementation issues such as control spillover, forcing vector selection, modal participation vector calculation time delay compensation and filter fidelity are discussed.
Independent modal/rate feedback control of a cantilever beam applying reciprocal modal filter vectors
Unabhängige Modal/Geschwindigkeits-Aufschaltungsregelung eines Freiträgers durch reziproke Modal-Filter-Vektoren
Schultze, J.F. (author) / Shelley, S.J. (author) / Rost, R.W. (author)
ISMA, ISMA, Tools for Noise and Vibration Analysis, 19 ; 2 ; 607-619
1994
13 Seiten, 6 Bilder, 3 Quellen
Conference paper
English
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